Force RGB over HDMI connection??!! (Dell U2414H)

Since Apple's support refuses to help me, nor do they seem to grasp incredibly basic technical information regarding monitors, I'm turning to you, dear forum.
I just bought two brand brand and professional calibrated Dell U2414H monitors to use with my Mac mini workstation in an extended desktop environment. ...even though Apple themselves erroneously told me I'd be able to daisy chain these monitors over the Thunderbolt connection using MiniDisplay Port 1.2 MST... (they were wrong, their GPU doesn't support DP 1.2)... So, I resorted to plugging the second monitor into the available HDMI port.
Problem: The Mac OS will not send the right color space (RGB) over HDMI. It sees the monitor as a TV for some reason, and will only send YPbPr... Therefore, my monitors that I paid extra to have calibrated perfectly, do not match.
I ran this script: http://embdev.net/topic/284710#3027030
but it didn't change anything. I'm searching for new solutions now...
Can anyone help?

Here... I solved it:
Dell U2414H Monitor - RGB COLOR ISSUE [SOLVED!] - The EASY way!

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Dropped and glitched sound with dv9700 when watching Blu-Ray over HDMI connected to receiver

I have hooked my dv9730nr up to my receiver (Onkyo TX-SR606) via HDMI, which then passes video through HDMI to my Panasonic plasma. When I do this, Blu-Rays have an audio glitch every 4-6 seconds, which sounds like either quick repeated sounds or a half-second pause in audio. The audio and video otherwise are great. PowerDVD Ultra reports that I am outputting 5.1 Dolby Digital via PCM, and the sound from my speakers support this. With other video, including 1080p .WMVs that I've made myself, there is no problem. I've disabled the laptop's monitor, and am only using the TV as my display. When I bypass the receiver, and hook my laptop straight into my TV via HDMI, there is no problem, but my TV has no built-in speakers, so no audio is being passed via HDMI. I have no other receivers with HDMI to test my laptop, so I'm not sure that that the problem is not with the receiver. I've tried disabling all audio output modes except for 24bit 48KHz under Realtek Digital Output in the Playback Devices control panel.
I'm not worried about this, since I have a dedicated Sony Blu-Ray played on the way, but I am disappointed in the HDMI audio performance of this laptop. I suspect the problem lies in the Realtek HD Audio drivers, or something wrong with the related hardware on the motherboard. I updated my drivers from v6.0.1.5494 A to v6.0.1.5548 A, with no change. I will try driver Vista_R213 off the Realtek website, although I'm not sure that this is compatible with my laptop.
Any ideas/suggestions?
Specs:
Windows Vista Home Premium 32bit SP1
Intel Core 2 Duo T5450 @ 1.66 Ghz
3 GB RAM
nVidia GeForce 8600M GS
RealTek High Definition Audio

Well slap me twice and call me Sally, it would appear these new Realtek drivers fixed the problem. The drivers can be found here, but be prepared for a slow connection to the Realtek website. Now I can indeed enjoy video and sound the way it's meant to be done via Blu-Ray, kudos Realtek for fixing this problem.

Listen to Music over HDMI Connection. Music will stop at around 10 seconds

Hello All.
I have a iPhone4 with iOS 5.01 Non-JB
Today Got a iDevice dock which have a HDMI Port that I could connect to my A/V Receiver which is great.
The HDMI works fine on Audio and Video. I even tested the MP4 video with AC3 audio (Passthrough iDevice can't play it but OK when you connect a TV with HDMI) it works perfect! but under 1 conndiction!
I must start the media after 10 second!
For example. The audio or video is last for 5 mins.
If I play it from the start 0:00 second. video / audio will drop at 10th second.! (it shows playing but no video and audio.)
if I turn off / on my AV receiver resume the playback from 13th second , the rest will be ok.
I don't know that's going on here.
please help!

never heard about that before I would suspect it's a thing with the tv rather then the phone to verify it I would try another tv

Force RGB Color Space over HDMI?

Does anyone know how to force RGB over HDMI on a Macbook Pro with Retina Display. This is driving me nuts, as I have two U2410's. One is connected via DVI (using the DVI thunerbolt adapter), whilst the other is connected via HDMI. The monitor connected via HDMI negotiates the YpBPr color space, whilst the DVI monitor uses RGB. This makes it impossible to get the two monitors to produce the same colour. I can set the monitor to RGB within the OSD, but that just produces a mismatch of green and purple colours - in other words, the signal coming from the mac is still YpBPr so obviously setting the monitor to RGB ruins the colours completely.
There must be some driver setting or something to force HDMI to output RGB instead of YpBPr. Through Googling, it seems this applies to pretty much any Mac with a HDMI port, hence it's got to be a software issue, that's why I chose this forum. I'm about to duck home (I'm at work) and grab one of my HDMI -> DVI cables to see if that provides a work-around.
What happened to Mac's being a professional device. Surely they can't claim superior colour management if something as fundamental as the monitor's color space can't be controlled.

I have given up trying to use a Mac with a Dell or Samsung or Viewsonic monitor. Just ordered and received a StarTech.com DP to miniDP cable and was disappointed to see only YpbPR being output to my 22" Dell monitor. This is on top of the general fuziness and inaccurate colors. I've tried all sorts of other cables and adapters, both Apple and 3rd party, and the plain sad fact is that none of them work properly.
I plug in an old Cinema Display or a new Apple LED display and it works perfectly, colors look great, type isn't fuzzy.
I boot into Windows 7 on the same Mac using Bootcamp and my Dell monitor works perfectly.
It's OSX's display drivers that just don't play nice with Dell or Samsung or Viewsonic monitors. There's no other explanation because every other combination has problems with OSX and non-Apple monitors.
I can get into the long description of every possible adapter and cable I've tried (as well as the terminal command to adjust font smoothing). If I want the type to look right and the colors to look right, I just have to use an Apple monitor, which is aggravating as I have plenty of larger monitors here at work that I'd rather use.
Brief summary:
Three different MBPs, one a Retina display. Four different monitors from 3 different manufacturers, each with various connection options (HDMI, VGA, DVI, DP). DP to miniDP cable, DVI cable with Apple DVI to mDP adapter, HDMI to DVI with mDP adapter, couple of other similiar combinations of cables and adapters.
Bottom line is that all the screwing around produces a low quality, poor color accurate picture when the MBPs connect to 3rd party monitors. Plugging in the MBP to an Apple monitor (as old as a 2006 era Cinema Display) using any combination of adapter or cable looks great. Plugging in Windows 7 machines, either a dedicated Dell laptop or the MBPs in Bootcamp mode, all monitors look great. Also note that in OSX, the signal recevied by the monitors is YpbPr, but the same laptop in Bootcamp Windows 7 outputs RGB.
Hence, my guess that OSX display drivers are wonky except when plugged into an Apple branded monitor.

No sound over hdmi, ION2 system

Hi there
I'm trying to get sound output over hdmi connection without any success. I'm totally out of ideas as I tried it with openelec.tv and a xbmc live system. All the time I never heard anything. I tested with speaker-test and mplayer. I tried stuff from the guide here: http://breden.org.uk/2010/09/30/shuttle … ta-2-live/, http://www.nvnews.net/vbulletin/showthread.php?t=157347 and also from xbmc wiki:
-different settings of asound.conf (however afaik this does not affect speaker-test -D plughw:X,Y -cN)
-options for the snd-hda-intel module
-unmuting
-different input channels of my receiver
-different nvidia driver versions
Here are my specs:
[card: (II) NVIDIA(0): NVIDIA GPU ION (GT218) at PCI:1:0:0 (GPU-0)
NVIDIA Driver Version: 260.19.29
kernel: 2.6.36-ARCH
alsa: 1.0.23
Onkyo TX-SR508 receiver using hdmi 1.4 cable
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
What I noticed is that dmesg does not show any hdmi hotplug event, something like: "HDMI hot plug event: Pin=5 Presence_Detect=1 ELD_Valid=0"
So I thought maybe you arch linux people have some creative ideas what the problem is here?
PS: It can't be the hardware because it works with windows7.

.:B:. wrote:Does audio over HDMI work when the nvidia module isn't loaded? The 1st gen AppleTV has that issue, but I cannot imagine nVidia's ION platforms suffering from the same problem on Linux...
No, does not work either... I need to help to figure out why the hotplugging and detecting of the receiver does not even work.

Connecting 2560x1440 screen to a U410 over HDMI

Hi, Im a new owner of U410 IdeaPad.
I bought this machine with the intention to hook it up to a WQHD (2560x1440) screen.
The screen I intend to get has no limitation on being fed over HDMI with this resolution (supports 1.4 HDMI).
What I have found out is that I might have a problem with the machine not supporting this resolution over HDMI.
My question is whether U410 with its dedicated Nvidia 610M (in addition to HD4000) sitting on Intels HM77 chipset will allow me to output WQHD resolution over the HDMI, or at least wether this HDMI connection is of 1.4 version.
Thank you very much.

Thanks for the reply
can you reference me to the source/s which confirm the 1.4 support (I'm a bit uptight about it since I am going to order the screen online without the option to return so I don't want to find myself owning a 27" HD-TV instead of a WQHD screen).
There is apparently an issue with HDMI and above 1080 resolutions, a few manufacturers (of both chipsets and monitors) made a bad assumption that HDMI = 1080p for the home user even though the interface can support more then that but they capped it at 1080.
For example
http://communities.intel.com/thread/30360
http://forum.notebookreview.com/hardware-components-aftermarket-upgrades/633598-dell-u2711-hdmi-2560...
- with wifi I had no problem what so ever (used both at home and in public). its manufacture date 06/06/12

Dell 2408WFP at mac mini over hdmi

I have an new mac mini server, where I try to connect an Dell 2408WFP to over hdmi.
Besides the problems with shadows around the letters in written text and menus, which I solved by setting the resolution to 1600x1000, I have a big color problem, which I can't solve by any calabrating procedure. Green and blue colors are dominating, and all brown to red colors are reduced or missing. For example the Icon of the addressbook appears not in this standard beige color but in green. As you can imagine, this is the absolute kill for any work on images. Since the Dell monitor is a good standard one, which I never had any problems with before, there must be a problem with hdmi ore even worse with the graphics of the mac mini.
Has anybody similar experiences and found a solution. I bought the hdmi cable expecting to have the best connection possible then, and to have only one cable between the mac mini and the monitor. Are there any limitations in the hdmi-standard concerning resolution and color management? I didn't test any dvi cable yet, since I am still hoping to find a solution for this problem.

I have exactly the same issues as you, ie the lack of clear / sharp text and the colour management problem. Did you get anywhere with this?
I was using this Dell display with Windows 7 and had none of these problems. I calibrated the display using a semi-professional calibration utility (i1Profiler / Eye-one Match) and the results under Windows were great. But with the Mac Mini I find that many colours lack saturation. Yellows are very faint, and reds look more like a brown-orange. I tried replacing the HDMI cable with a DVI cable and the Mac HDMI -> DVI converter but I don't see any improvement.
Interestingly I find that the text looks best at the monitor's native resolution, ie 1920 x 1200 but it's still nowhere as crisp as text is under Windows.
For me the colour management issue is the biggest problem. I do lots of underwater photography and I just wouldn't dare work on any of my photos with the display as it is.
The profile I find works the best is sRGB IEC61966-2.1 but it's way off being natural / correct.
I specifically bought the Dell display as it has variable height and fits neatly in the corner off my office where the height is limited, I don't have room for a 27" thunderbolt display even if I could find the funds (~$1600 in the UK!)
I'm running 10.7.2 (Lion) in case it makes a difference.

Cannot display the screen of the macbook on TV. OS is Lion 10.7.2. Connection to the TV is over HDMI cable. TV shows only the backgroud picture of Lion. Do you have any suggestions for help ?

Cannot display the screen of my macbook on TV. OS is Lion 10.7.2. The Macbook is connected to the TV is over HDMI cable. TV shows only the backgroud picture of the Lion OS and reacts even to mission control. Do you have any suggestions for help ?

You have the display set in Extended Desktop mode. In System Preferences>Display on the MacBook screen there should be an Arrangement tab when you have the MacBook hooked up to the TV and both screens working. When you click the Arrangement tab do you see two monitors side by side? One of them will have a Menu Bar at the top. Just click on the Menu Bar and drag it to the second monitor. That will make the second monitor your main screen. You can now use your MacBook in Clamshell Mode with a wired or Bluetooth keyboard and mouse. http://support.apple.com/kb/HT3131 When you disconnect from the TV your Menu Bar will automatically change back to the MacBook.
Or if you want to work on the MacBook screen while showing it on a TV you can check the Mirror Display box on the lower left hand side of the Arrangement tab under the two monitors box.

5.1 Surround over HDMI: Solve one problem, another rises up.

UPDATE 1: After a good night's sleep, and after doing a bit more reading on alsa-project.org (big props to this page), I managed to get a much better ~/.asoundrc together. It solves all my problems, and I can do everything I need. I've preserved the post below in case anyone else runs into these issues, and I'll post my solution as a response to this post.
UPDATE 2: Looks like I celebrated too early. Got more strange problems. Screw it, I'm going back to PulseAudio. I just wrote a wrapper script to kill and restart Pulse for applications that really, really need ALSA.
Okay. I've almost completely worn out my fingers trying to get this working. I feel like I'm playing Whack-a-Mole. This is a bit of a lengthy post, but I'll try my best to describe every problem I've encountered in as much detail as I can, followed by the solutions I found, followed by the problems each solution brought with it. By going through everything this way, mole by mole, hopefully it'll be easy to follow along and help me come to a universally working solution.
Summarized Version of Problems:
5.1 surround works only on specific applications which are robust enough to allow me to manually specify audio output options, and only if ALSA isn't configured at all
once I've configured ALSA, sound works on every application, but it's all downmixed to 2.0 stereo from this point on
installing PulseAudio lets me choose 5.1 surround as a default, but brings with it its own problems and drawbacks, namely the lack of passthrough support for encoded streams
Long-Winded Version:
I have my computer connected over HDMI to an AVR with a 5.1 surround speaker system. At first, I didn't have anything configured in ~/.asoundrc (or its global equivalent, /etc/asound.conf). Neither file existed, so everything was running off defaults. I got the name and device number of my card from aplay, ran speaker-test and played a six-channel test file in mplayer.
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
hdmi:CARD=HDMI,DEV=0
HDA Intel HDMI, HDMI 0
HDMI Audio Output
$ speaker-test -Dhdmi -c6
speaker-test 1.0.28
Playback device is hdmi
Stream parameters are 48000Hz, S16_LE, 6 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 349504
Period size range from 32 to 174752
Using max buffer size 349504
Periods = 4
was set period_size = 174752
was set buffer_size = 349504
0 - Front Left
4 - Front Center
1 - Front Right
3 - Rear Right
2 - Rear Left
5 - LFE
Time per period = 21.868405
$ mplayer -ao alsa:device=hdmi -channels 6 Nums_5dot1_24_48000.wav
MPlayer SVN-r37224 (C) 2000-2014 MPlayer Team
210 audio & 441 video codecs
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing Nums_5dot1_24_48000.wav.
libavformat version 55.33.100 (internal)
Audio only file format detected.
Load subtitles in ./
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 48000 Hz, 6 ch, s24le, 6912.0 kbit/100.00% (ratio: 864000->864000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
[AO_ALSA] Format s24le is not supported by hardware, trying default.
AO: [alsa] 48000Hz 6ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 8.6 (08.5) of 9.0 (09.0) 0.3%
Exiting... (End of file)
Everything seemed well, all six channels played from the correct location on both tests, but I did realize that the device number of the card was 3, not 0. A lot of applications that aren't as configurable expect the default card/device to be set properly, and audio won't work in those applications without specifying that in ALSA's configuration. Knowing this, I set the following in my ~/.asoundrc:
pcm.!default {
type hw
card HDMI
device 3
ctl.!default {
type hw
card HDMI
device 3
This, however, ended up causing more problems. Oh, it made sound work on everything by default after that, but only for one application at a time! That surpised me, as I thought ALSA's big advantage over OSS is that it can multitask. Running the speaker-test the way I did earlier turned out fine, but when I tried playing that test file in mplayer, things got weird again. Here's the output from mplayer:
$ mplayer -ao alsa -channels 6 Nums_5dot1_24_48000.wav
MPlayer SVN-r37224 (C) 2000-2014 MPlayer Team
210 audio & 441 video codecs
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing Nums_5dot1_24_48000.wav.
libavformat version 55.33.100 (internal)
Audio only file format detected.
Load subtitles in ./
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 48000 Hz, 6 ch, s24le, 6912.0 kbit/100.00% (ratio: 864000->864000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
[AO_ALSA] alsa-lib: pcm_hw.c:1557:(snd_pcm_hw_open) open '/dev/snd/pcmC0D0p' failed (-2): No such file or directory
[AO_ALSA] Playback open error: No such file or directory
Failed to initialize audio driver 'alsa'
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video
Exiting... (End of file)
Why the hell is it looking for pcmC0D0p? It should be looking at pcmC0D3p. Did it not get the memo from ~/.asoundrc? Urgh.
I've also tried '-af channels=6' in place of '-channels 6' but the same result happened. It does the same thing without the '-ao alsa' option, I just specified it to trim down the output, so that I wouldn't be copying and pasting all kinds of other errors about not finding OSS or JACK or other things I don't have installed.
If I symlink /dev/snd/pcmC0D0p to /dev/snd/pcmC0D3p, it'll fix the problem, but that feels like one ugly kludge. I'd have to do it again over and over every time I reboot, too.
Not sure if this would help matters or not, but if anyone knows how to change my card's device number from 3 to 0, I'd like to try that as well, but I'm not sure how to do that sort of thing. I'm just guessing it might be worth trying, since everything looks for card0/device0 by default, and that kludge I tried earlier did have an effect, so maybe if we can just switch those device numbers with each other, everything would work smoothly without having to force anything through ALSA's configuration at all. I believe card0/device0 belongs to the Host Bridge... is there a way to have them trade their device numbers for one another's in a safe manner?
I can also get it to play if I specify the device like I did in my first test, using '-ao alsa:device=hdmi', but that defeats the purpose of getting good defaults set if I still have to set everything by hand before I play something. If I try playing the test file without any options, like so:
$ mplayer Nums_5dot1_24_48000.wav
... it will play, but only in two-channel stereo, and the parts that should happen in the center, rear and LFE channels get downmixed into the left and right channels.
I can get it to work in aplay, though! All six channels! Not that I plan on using this as my primary multimedia software.
$ aplay -c6 Nums_5dot1_24_48000.wav
The only solution I found so far that allows me to have 5.1 audio by default is to install the PulseAudio server, which is able to find a sink/source named 'alsa_output.pci-0000_00_03.0.hdmi-surround' and lets me choose that as my default. Only problem with this is that PulseAudio has its own problems.
Aside from the crackling sound issues in some Wine games, Pulse also has a much bigger drawback -- a complete lack of passthrough support, meaning I can't use encoded streams such as Dolby DTS and TrueHD with PulseAudio. I have a Harman/Kardon AVR and I'd like to get my money's worth out of it, so I'd really like to figure out a solution in ALSA without using Pulse at all.
Does anyone know how I can have my cake and eat it, too? I just need 5.1 surround, by default, in ALSA without PulseAudio.
HUGE thanks to anyone who tries to help here. This is really making me sad and frustrated, I've been using Arch for quite a while now and this is the first real big stumper I've come across that forced me to post a thread. Otherwise I've been having a wonderful time.
Edited because I tried something different that removed *some* issues, but the above problems still remain.
Last edited by Rybelda (2014-10-27 22:10:24)

Well, I thought I fixed it doing this...
pcm.!default {
type plug
slave.pcm "dmixer"
pcm.dmixer {
type dmix
ipc_key 1138
ipc_key_add_uid true
slave {
pcm "hw:0,3"
format S32_LE
channels 8
rate 192000
period_size 9600
buffer_size 38400
... but then realized it strangely makes applications that run at 640x480 have no sound at all. No idea why the video resolution is screwing up the sound, but that's what's happening, because if I set the resolution any higher, the sound comes back.
I'm going back to PulseAudio, I feel like ALSA is mocking me. I wrote a wrapper script for the few times where pure, Pulse-less ALSA will be necessary for me. Here it is, in case it helps anyone else. I've tested it with XBMC, it turns off Pulse and allows ALSA to pass through encoded streams unhindered. It also works with some Wine applications that have scratchy audio glitches in Pulse.
#!/bin/bash
echo "autospawn = no" > $HOME/.config/pulse/client.conf
pulseaudio --kill &> /dev/null
"$*"
rm -f $HOME/.config/pulse/client.conf
pulseaudio --start &> /dev/null
I'm removing the SOLVED tag because technically I didn't resolve any of my original issues, I more or less gave up on what I wanted to do and found another way to satisfy my needs, but it still isn't as elegant as I had hoped for. In any case, I'm done with this issue for now and the forseeable near-future, but if anyone has anything further to add, feel free.
Last edited by Rybelda (2014-10-27 22:32:55)

Trouble connecting Dell monitor to macbook pro

I'm trying to hook a Dell u3011 to a 2011 macbook pro. I've got a DisplayPort to MiniDisplayPort cable connected, as well as the USB cable, but the monitor gets no signal and displays a "No Displayport Cable" error message. I've double-checked the connections and the input setting in the monitor's menu. I'm not currently able to test either the HDMI or DVI connections because I lack the necessary cables/adapters. Any ideas what's going on?
2011 MacBook Pro 15"
Quad 2 Ghz i7
8 GB RAM

Hi,
I am sure your problem must have been sorted out by now, but for all current and future buyers for the dell U2414H and having an apple computing device, mac, macbook, pro etc, the monitor works perfectly out of the box when I connected with a mini DP(thunderbolt port) to HDMI output (U2414H), it just ran out of the box, without any issues, it even worked simply for my bootcamp windows. So no need to fret before purchasing one, simply go ahead and get it, it's the Monitor with most appealing edge giving you only a screen to view at, I was also considering between the U2412M and the U2414H, I think I've made a great choice.
Cheers,
N

N8 HDMI connection, 5.1 sound

Hi all,
My wife's got the N8 and it's really great being able to connect it over HDMI.
However, I think I've discovered an issue that might easily get solved in a future update.
My receiver doesn't have any HDMI inputs, so what I do is to connect the N8 to the TV, which in turn has an optical out that goes to the receiver. I've learned that connecting this way is not that unusual.
Anyhow, what happens is that the TV probably reports to the N8 that it is capable of 2 channel sound and therefore the N8 only sends a 2 channel stream to the TV regardless of the digital content that is being played, that is unfortunate because that's what the receiver will receive from the TV as well. I had the same issue with the XBOX 360 (like many others), but there was a setting in the XBOX where one could force the stream to 5.1 channels regardless of what the connected display device reported, and that worked very well.
Now it would be great if the N8 could be configured to ignore that 2 channel information from the TV and force 5.1 audio stream so that I will be able to use 5.1 sound on our receiver. I'm pretty sure more users than me will stumble into this issue.
It would really nice if this little feature would be implemented in an upcoming firmware release.

I did 2 tests, With the center Channel dials, one at 0% and the other one at 100%. No change, same....
Audio 1 and audio 2 is a stereo recording with 2 microphones (one pointed to the left of the crowd and the other one to the right). This was recorded with a ZOOM Handy Recorder. Then, Audio 3 and 4 is the sound that comes from the sound man board (only music from the CD) that was recorded in the same time with the video on a KiPro.
This a dance show, and the client would like to have the sound in surround. So I wanted to put the crowd noise in the back speakers. But when I play the result, plays in the front speakers also...even if they are panned to the back. Normally in the front during the applause I should not have sound. But I do..........
Thank you so much for your time and help!
Mike

My Thunderbolt to HDMI connection isn't working anymore.

I've had my MacBook Pro for about a year now (2.4 GHz i5), and I've been using a Thunderbolt to HDMI adaptor to connect to my Sharp 32" LCD with no problems since I bought it...until this week when I updated all my software/OS. Now, I can connect, the displays prefs see the monitor, but all I get is black. No sound either...even though the sound prefs recognize the HDMI connection.
I know the problem isn't the cable. It used to work, and it still actually connects this same laptop to my projector...but it won't display on my TV anymore. I even get sound on my projector. It works like my TV used to. The problem started with the update, so I want to know what changed...and when Apple plans on fixing it. These are not cheap computers...I am kind of embarassed that I have to use my gf's $350 Acer to play Netflix on our TV when I have this multimedia monster gathering dust.
This problem is extremely frustrating, and I've been doing some research on it. It seems like quite the problem for a lot of people! There are multiple unresolved discussions on here about it (some of them over 40 pages long!) and I can't really believe Apple isn't dealing with this. It's been years now since this started happening, I guess.
We're mac users...we need multiple displays, and we need this stuff to keep working when we update! That's why we've made Apple into the richest corporation in the world. Step up superstars...fix this!
Again (just to be clear) I know the problem isn't the cable, so don't tell me to go get a different one, or that it's the issue. Me and my gf basically wore out Netflix with this very laptop and cable up until this week, and I've never had an issue with it..ever, until this update (to OS 10.7.5). Everything is in good shape, and if the laptop/computer is still feeding to my projector just fine...there's something else going on here, and I think a lot of people would love to know what it is. I am not the only person this is happening to, and it's been years since people have been begging Apple to fix this!
I hope that Apple looks into this and puts these discussions to rest. There are a lot of them! Do a search! The "More Like This" box on the right here is FULL of very similar UNRESOLVED discussions. This should be a priority. You've all made enough money off us...now make your stuff work like it's supposed to and close these threads!

No, I am a media professional who uses his MacBook Pro to connect to external monitors, and needs to continue to do so. I don't want Apple TV. I want my laptop to work again, like it's supposed to. Like it used to.
I have a demonstration this week at work that requires me to plug into an LCD screen and I am hoping to have this resolved by then. I am trying to convince my department to buy a Retina Mac and thousands of dollars worth of video software for live shows, and if I can't make it work, then I can't exactly convince them (or myself) to buy what I have been researching.
Again, I don't want wireless video or Apple TV. I don't want to buy any more stuff. I want to know why my Thunderbolt to HDMI cable stopped working after my update, and how to fix it...preferably before this meeting.

Why doesn't the MBPr support 2560x1440 over HDMI with OSX when Windows7 (bootcamp) supports it just fine?

I purchased a 2013 MBPr 15" (the first Mac I've ever owned btw) and so far have enjoyed the experience. I purchased a large 27" high resolution 2560x1440 non-Apple display which I planned on using HDMI output for, since HDMI has no problem supporting this resolution. After receiving this display yesterday I came to the sad realization that OSX does not support 2560x1440 over HDMI. However, under further investigation I found that Windows7 in Bootcamp on the same machine will beautifully display the full 2560x1440 over HDMI.
This means that OSX is the problem, and not the MBPr since Windows7 displayed the full resolution with no issue. If the hardware can support it, why would Apple disable it in the software? Is this just their way of forcing people to use DisplayPort? Or is there hope for them fixing this in future versions?

OK. No reason to be playing games here. Just surprised that this issue hasn't been brought up here on the community boards as well. Here's the simple solution
Steve
========================================
Re: Why can't my Belkin Thunderbolt Express Dock operate my desktop speakers?
Options
07-17-2014 07:09 PM
After reaching a Level III technician in Belkin customer support today and having spent approximately 4-5 person hours on this issue, we figured out that the Sound/Output preferences in the Apple System Preferences should not be set to "Internal Speakers" but rather set to "USB PnP Sound Device".
Worked like a charm. Simple, elegant solution to a real problem, one likely to be encountered by 90% of the people who buy a Belkin Thunderbid Express Dock off the shelves of any Apple Store to use with a current generation Apple laptop or desktop computer.
But the Level III Belkin technician admmtted that this critical little piece of simple, straightforward information should have been readily available to their Level 1 techies who began helping me 5 person hours ago. Would even have saved Balkin loads of customer service support time.
And so the saga ends
Belkin owes me for helping them learn this precious lesson.
Steve

Sound over HDMI works halfway.[SOLVED]

//After looking around, HDMI only sends the signals to turn down the HDMI connected device. I guess it's as good as it gets...//
Using nVidia GT218 [ION] on Zotac Hd-id11.
NVIDIA Driver Version: 260.19.44
2.6.37-ARCH
//pianobar uses libao. My config, ~/.libao, looks like this and fixed pianobar over hdmi//
default_driver=alsa
dev=hw:1,3
Sound works over HDMI for most of my applications(Flash, Gnome player, Skype) but I have no volume leveler under alsamixer nor does pianobar output to HDMI unless I launch it twice. The error that allows pianobar to work over HDMI is
ao_alsa WARNING: Unable to open surround playback. Trying default device...
I'm wondering, is there something I'm missing?
//this will have 4 outputs if you don't use sound.conf instead of just one//
What alsamixer looks like on card 1
//if you don't use a sound.conf file(see next section) the defaults will probably be hw1,7)//
This plays "Front Center" over HDMI.
$ aplay -D plughw:1,3 /usr/share/sounds/alsa/Front_Center.wav
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
$ cat /etc/asound.conf
pcm.!default {
type plug
slave.pcm {
type hw
card 1
device 3
//Turns out I didn't have to even make a sound.conf//
$ cat /etc/modprobe.d/sound.conf
options snd-hda-intel enable_msi=0 probe_mask=0xffff,0xfff2
//snd_hda_codec_realtek is the codec used to replace snd_hda_codec_nvhdmi, make sure it's loaded//
$ lsmod|grep '^snd' | column -t
snd_hda_codec_hdmi 20024 1
snd_hda_codec_realtek 224540 1
snd_seq_dummy 1119 0
snd_seq_oss 25232 0
snd_seq_midi_event 4568 1 snd_seq_oss
snd_seq 41912 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 33950 0
snd_mixer_oss 15366 1 snd_pcm_oss
snd_usb_audio 70888 0
snd_hda_intel 18988 3
snd_usbmidi_lib 15361 1 snd_usb_audio
snd_hda_codec 64796 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 4804 2 snd_usb_audio,snd_hda_codec
snd_pcm 59496 6 snd_hda_codec_hdmi,snd_pcm_oss,snd_usb_audio,snd_hda_intel,snd_hda_codec
snd_timer 15687 2 snd_seq,snd_pcm
snd_rawmidi 15512 1 snd_usbmidi_lib
snd_page_alloc 6021 2 snd_hda_intel,snd_pcm
snd_seq_device 4409 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd 43987 20 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_usb_audio,snd_hda_intel,snd_usbmidi_lib,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer,snd_rawmidi,snd_seq_device
$ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 80 Mar 13 10:22 by-path
crw-rw----+ 1 root audio 116, 8 Mar 13 10:22 controlC0
crw-rw----+ 1 root audio 116, 11 Mar 13 10:22 controlC1
crw-rw----+ 1 root audio 116, 7 Mar 13 10:22 hwC0D2
crw-rw----+ 1 root audio 116, 10 Mar 13 10:22 hwC1D1
crw-rw----+ 1 root audio 116, 6 Mar 13 10:22 pcmC0D0c
crw-rw----+ 1 root audio 116, 5 Mar 13 19:40 pcmC0D0p
crw-rw----+ 1 root audio 116, 4 Mar 13 10:22 pcmC0D1p
crw-rw----+ 1 root audio 116, 9 Mar 13 19:38 pcmC1D3p
crw-rw----+ 1 root audio 116, 3 Mar 13 10:22 seq
crw-rw----+ 1 root audio 116, 2 Mar 13 10:22 timer
Last edited by seca (2011-03-22 03:43:43)

I am also having this problem... I get this error when I play certain songs in pianobar:
ao_alsa WARNING: Unable to open surround playback. Trying default device...
I am not sure how to fix this

Qosmio G50 No sound over HDMI

*Qosmio G50 No sound over HDMI*
Hi all,
Hopefully anyone recognises the following and would be so kind to help me. I have searched the forum and tried severall of the offered solutions mainly applicable to Vista, but still.
I hooked up my Qosmio G50 to my Philips LCD by HDMI cable. Picture is ok but there is no sound. I tested the cable with a Toshiba Satelite Pro L550 and it works allright. Picture and Sound are working. But that laptop has Intel HDMI audio.
I'm running Windows 7 Home Premium 64 bit. I upgraded by Toshiba update DVD from Vista 64 bit. Sadly I do not know for sure if HDMI audio did work before that. I think so because I did use the laptop for watching a movie on a Panasonic plasma. But I can not remember if that was before or after the upgrade.
Realtek HD Audio device is installed driver version 6.0.1.5923
Realtek HDMI Output is selected als default playback device.
Testing gives me graphical response ( the indicator flashes ) but no audible sound from my tv.
Choosing the other audio device Realtek Digital output changes nothing and I do not believe that this would work anyway.
I have tried removing the device and reinstalling the original drivers. I have tried REaltek drivers from their website.
I have tried changing the view to HDMI only but that does nog change anything either.
One thing that worries me is that under Sound / Realtek HDMI Output / properties / Supported Formats there are no formats present. The Satelite gives me DTS audio and some other. So I am wondering if there should be formats present and if so how can I change this / add any.
Please forgive me if there are errors in the text. I am translating this from a dutch language version of Windows 7.
Please help me. Any suggestions are welcome!

Jeka-?? & PinkPanther thanks for your replies!
The solution for the G30 you mention is not the one for me I am sorry to say. I have tried that one allready. Windows automatically switches on the HDMI audio out when I connect an HDMI cable. Connecting the cable before switching on the TV and laptop is a good thing to try because it eliminates possible problems with the connection. The connection in my case is ok.
At some point I concluded that there must be a softwareproblem of some sort.
I have found the solution over night. Could not sleep anyway. I did not know that the videodrivers are also handling HDMI audio out but in a way it makes sense. I have completely deinstalled the NVIDIA video drivers. After downloading the latest drivers and installing them everything works absolutely fine!

Force RGB over HDMI connection??!! (Dell U2414H)

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