Hdmi switch disables video

I have an "early 2009" mini. I hooked it up to my HD TV through a Sony amp that acts as an HDMI switch. It works great until I switch to a different component (e.g. satellite receiver). When I switch back to the mini there is no video or audio. Screen sharing is also disabled: I can't access the mini from another Mac. Oddly, I can use the iphone Remote app to operate iTunes and send output through AirPlay. I could also access its shared files through the network.
I've tried hdmireviver. It works for a while, but when the mini is not selected by the HDMI switch for more than 15 minutes or so, it fails.
Any ideas?
Do later models of the mini work more congenially with an HDMI switch?

There seems to be some odd issue with HDMI interfaces
when switched. I have a 2010 Mini connected to a Yamaha
receiver, using it as the HDMI source swittch.
In my case, as an example, I power up the setup with the
mini as the source, if I switch to say my cable box, when I
switch back, I will only have stereo available and no multi-
channel capabilities from the Mini. It takes a reboot to
get multichannel capabilities back.
So basically, breaking the initial HDMI link with the Mini
does all manner of strange things. So I am not suprised
that you have these issues. It seems Apple doesn't quite
have a handle on HDMI connectivity with their products.

Similar Messages

Problems with uVerse DVR connected to a network switch and 1x3 HDMI switch

So that I can connect multiple devices (Apple TV & BluRay player), I've connected my uVerse DVR to a network switch with IP Quality of Service function. Is it known whether or not this will cause problems? I am having problems, but see next question for probable cause. I have also connected my HD TV to a 1x3 HDMI switch output, with inputs from the uVerse DVR, Apple TV, & BluRay player. This clearly has caused problems because the DVR goes through the power on sequence almost everytime the TV is turned on, I have intermittent problems with the HDMI switch displaying video on the TV, and on several occassions, shows scheduled for recording haven't recorded at all or only partially recorded.

I've been having problems with this for months especially with the GigaPower rollout and broke down and decided to resort to some network engineering tactics versus calling out AT&T Techs. The Techs are good at their job but they are only knowledgeable about the hardware aspect but are dumb founded on this one and it's not their job to know. To the point of using a switch next to the DVR and this counts truly for all set top boxes via Ethernet they need to be physically seperated wires. Well, unless you want to pay someone to put an extra Ethernet drop next to each wired set-top box or DVR this isn't feasible so options are deal with it or spend $20 more dollars on a switch that supports 802.1q trunking which makes two 'virtual' independent ethernet cables over one line. If you can do it great otherwise this takes a higher than average knowledge of basic networking. A basic setup would be: + Get two switches - Netgear GS108T or GS108E I've found does the job well. + Enable 802.1q advanced VLANs+ Make two additional vlans 2 and 3 (1 is the native VLAN)+ Mark a port as tagged 'T' for the trunk port to the other switch for VLANS 1,2,3 (I used port 8)+ Assign VLAN 2 and mark as untagged for ports 2-7 - this is for data traffic+ Assign VLAN 3 and mark as untagged for port 8 only - this is for video multi-cast traffic+ ***DISABLE*** MULTI-CAST IGMP SNOPING otherwise IPTV won't work. On the back of the Uvserse router, take an Ethernet wire and plug into port 8 and take an Ethernet cable and plug into port 7. This does not create a loop though sounds like it, we've created two unique layer 2 networks. Now configure the second Netgear switch (or switch of your choosing...) the same exact way but plug your DVR into port '8' and all your data stuff XBox, whatever... into ports 2-7. Whalla, you've eliminating multi-cast flooding and DVR traffic is independent. Ever since I started doing this I increased the speed throughput from 10 MB/s or to never working to a full reliable gigabit speed or respectibly whatever UVerse service you get.

[Solved] No video in nvidia HDTV after HDMI switching

My HDTV client (Arch64bit,XFCE) goes through a Receiver which can switch HDMI inputs, then to a HD monitor. Until recently, I could switch and find the video still working when I switched back. Recently this changed. The HDTV client also dual boots Win7, which does allow switching. To wit:
HDTV client setup(dual boot,HDMI,nvidiaGT610):
‥Archlinux/nvidiaGT610 ->SwitchingReceiver->SamsungHDmonitor
‥Win7/nvidiaGT610 ->SwitchingReceiver->SamsungHDMonitor
Previous behavoir:
…switching away from HDTVclient then switching back - HDmonitor video works
Current Behavior:
…switching away from HDTVclientWin7 then switching back - HDmonitor video works as expected
…switching away from HDTVclientArchlinux then switching back - HDmonitor video blank (no signal) but Remote desktop works, shows X11 working (putty SSL, vnc Remote Desktop). Requires reboot to restore video with HDmonitor on and Receiver HDMI selected to HDTV Archlinux/nvidiaGT610.
Recently there has been an upgrade to xorg-server:
[2015-02-16 08:56] [ALPM] upgraded xorg-server-common (1.16.4-1 -> 1.17.1-1)
[2015-02-16 08:56] [ALPM] upgraded xorg-server (1.16.4-1 -> 1.17.1-1)
[2015-02-16 08:56] [ALPM] upgraded xorg-server-devel (1.16.4-1 -> 1.17.1-1)
[2015-02-16 08:56] [ALPM] upgraded xorg-server-xephyr (1.16.4-1 -> 1.17.1-1)
and to the nvidia driver:
[2015-02-02 11:48] [ALPM] upgraded nvidia (346.35-4 -> 346.35-5)
[2015-02-07 10:47] [ALPM] upgraded nvidia-ck-k10 (346.35-3 -> 346.35-4)
[2015-02-08 05:25] [ALPM] upgraded nvidia (346.35-5 -> 346.35-6)
[2015-02-28 09:15] [ALPM] upgraded nvidia-utils (346.35-2 -> 346.47-1)
[2015-02-28 09:15] [ALPM] upgraded nvidia-libgl (346.35-2 -> 346.47-1)
[2015-02-28 09:16] [ALPM] upgraded nvidia (346.35-6 -> 346.47-3)
[2015-02-28 09:16] [ALPM] upgraded nvidia-ck-k10 (346.35-4 -> 346.47-3)
[2015-02-28 09:16] [ALPM] upgraded opencl-nvidia (346.35-2 -> 346.47-1)
I could use some suggestions for debugging this... .. .
Notes:
․xorg.conf points to EDID file recovered from Samsung using direct connection
․DPMS disabled in xorg.conf
․xscreensaver is not installed
․Power Manager / Display setting to never
․Per graysky's admonition, this also occurs with non-ck 3.18.6-1-ARCH #1 kernel and nvidia's 346.47
xorg.conf http://pastebin.com/jhjHzT5X
Xorg.0.log http://pastebin.com/4LkNHrAM
Last edited by keepitsimpleengineer (2015-03-16 17:57:30)

Thanks to Evangelos Foutras (foutrelis) the issue is solved and the Bug FS#44199 - No video in nvidia HDTV after HDMI switching is closed.
The bug...
In xfsettingsd 4.11.2 there appears to be a regression that when a TV hooked up to the computer via HDMI gets power cycled, it stops displaying anything.
It happens via a RANDR event being sent to all X clients when the TV gets turned off.
xfsettingsd thinks that it should switch to an internal output, but desktops don't have one. So when the TV comes back on the bus it seems like it's an extra monitor and xfsettingsd gets confused.
My new workaround...
Unwilling to do any testing on a remote HDTV client for domestic tranquility reasons, I did this…
Dug out an old monitor, searched through the parts drawer and found a DVI-to-DB-9 converter, plugged it in and tested that per description in XFCE Bug 11107 - xfsettingsd resets TV mode to NULL on power cycle.
The problem is (re)solved as video is restored after switching.

Im having trouble connecting my macbookpro to the tv. im using a mini display port to hdmi adapter, when i switch tv/video to hdmi on the tv nothing pops up, and i dont have the arrangement tap on the display settings, please help!

im having trouble connecting my macbookpro to the tv. im using a mini display port to hdmi adapter, when i switch tv/video to hdmi on the tv nothing pops up, and i dont have the arrangement tap on the display settings, please help!

I've found that the order of operations, so-to-speak, can be important when hooking up mini display port to HDMI. I have the most success with the following operations in this order:
1) Plug HDMI cable into mini displayport adapter (the cable should not be plugged into either the TV or the computer at this point)
2) Plug the mini displayport end of your new super-cable to the computer.
3) Plug the HDMI end into your TV.
4) Switch inputs on your TV to the proper input.
5) If still nothing on the TV, try a different HDMI port on your TV.
Hopefully this helps! Good luck.

No video through Kinivo 301bn HDMI switch

Apple TV MD199LL/A
This problem started in late October. Unfortunately, I cannot correlate it to the Apple TV software upgrade pushed out at that time.
From Feb 2013 through October 2013, this setup worked fine: Apple TV --> Kinivo 301bn --> HDMI-DVI cable --> Sony Projection TV. Now, there is no video but audio works fine.
I have restored the Apple TV through iTunes, upgraded Apple TV to 6.0.2 (released 14 November 2013), even got a replacement Apple TV from the Apple store, and in all cases, video will not pass through the Kinivo HDMI switch.
I removed the switch from the equation (Apple TV --> HDMI-DVI cable --> Sony Projection TV) and everything works perfectly at 720p (the TV does not support 1080p).
Kinivo is sending a new switch, but I am guessing that will not fix the problem.
Does anyone know if Apple messed with HDCP in the 6.0.1 SW update for Apple TV (24 October 2013)?
If not, does anyone have any other ideas as to the problem/solution?

Just to follow up and close this out:
- Kinivo's replacement had the same issue.
- I daisy-chained another active device between the Apple TV and the Kinivo. This device splits the audio out from the HDMI into L/R channels, but it also maintains the EDID signal back to the Apple TV (as the Kinivo should, as well.)
In this configuration, video successfully made it to the TV through the Kinivo. My conclusion is that the Apple TV configuration did change something that affected part of the EDID handshake, which the Kinivo switch could no longer handle.
For you geeks out there, this phrase from an Extron white paper may help:
"Additionally, a display may handle a new input selection by switching only the TMDS or DDC lines from the previous source, but doing nothing with the HPD line. This can be a problem, because some sources wait for the HPD line to change state before sending video. In such cases, switching between inputs on a display can result in no viewable picture until the system is power-cycled."
For your additional reading pleasure, please see the following links:
http://www.extron.com/download/files/whitepaper/edid_guide_wp.pdf
http://missingremote.com/blog/experience-hdmi-handshake-issues
I'm now searching for a single active device that will handle these ambiguous areas within the HDMI standard. Hopefully it won't cost me a mint.
In the end, Kinivo could not solve the problem, so they refunded my money. The switcher was still within the 1-year warranty.

Mac Mini HDMI into AV HDMI Switch - Lose sound when monitor is shutoff

I'd like to use the Mac Mini to listen to internet radio and have the display shutoff. I have the Mini's HDMI output cable connected to Yamaha audio video home theater receiver that acts as a HDMI switch from various HDMI inputs (blue ray player, xbox, and mac mini). A single HDMI output from the av receiver goes to my Samsung flat screen TV.
All works well (I have the system preferences sound option set to hdmi on the Mini) until I shut off the TV. Then the sound that was going to the AV receiver shuts off and the mini switches its sound output back to its internal speaker.
Can't find a way around it. Appreciate an answer if anyone has one.
Reading the booklet that came with the Mini regarding HDMI output, it appears that Apple assumes that cable is going directly to a monitor. I'm wondering if the Mini gets a signal that monitor goes off (via the av receiver) the designers didn't factor the av receiver's capability to continue handling the sound.

When the TV is turned off or disconnected from the Mac, or if you are using an AV Receiver also when the AV Receiver is switched to a different source than the Mac, the result is that the Mac no longer sees a signal on the HDMI interface. The Mac will then deactive the HDMI interface and switch the sound back to the built-in speaker.
The best solution involves spending money, and is to buy a Gefen HDMI Detective+. This learns the signal from the TV and will keep sending it to the Mac even if the TV is turned off, unplugged or the AV Receiver switches the connection.
See http://www.gefen.com/kvm/dproduct.jsp?prod_id=8005

HDMI Switch + Verizon On Demand woes

So I setup my STB to run through an HDMI switch (that goes to my stereo receiver's HDMI passthrough) which, except for the occaisonal audio glitch (usually when I switch sources without first turning my STB off) works great. The only problem being that I can't seen to get Verizon On Demand to work. When I go to the On Demand screen I get no picture, or rather just a black screen with a green vertical line or some other similar glitch but I do get the audio. Plugging the box directly into my TV works just fine however.
Any thoughts out there?
My suspicion is either the switch or the passthrough. I haven't tried connecting the box straight to my receiver's passthrough HDMI port and will try that next.

spacedebris wrote:
Well, if the menu systems are working fine and the video problem is only with the VOD program itself. Then my guess would be that your switch or the stereo passthrough is having problems with the Mpeg4 format of the VOD programming...
AFAIK Verizon does not currently send anything in MPEG-4. The 6xxx series does not support MPEG4 decoding while the 7xxx series does. As a matter of fact, any of the premiums that are received at the SHE in MPEG-4 have to be transcoded to MPEG-2 for this very reason.
EDIT: Also, most existing TV sets don't know how to decode MPEG4 (perhaps with the exception of the newest).
Message Edited by Keyboards on 07-07-2009 02:26 PM
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

HDMI Switching issues

Hello, I've read numerous posts about HDMI issues with the ATV 3.x software.
Recently I bought a Sony HT-CT100 sound bar system which I was trying to use to switch all my HDMI sources. All the sources go into the sound bar, and the sound bar outputs video via HDMI to the TV.
I had frequent problems when changing sources, e.g. between my cable set top box and the ATV. Often it would appear that the ATV was rebooting, because I'd get the sliver apple logo for a period of time. Other issues are harder to describe objectively, but I can subjectively say that switching sources was never "clean"... it seemed that resolutions would shift, the screen would flicker in and out a few times- generally just not cool.
Unfortunately I got the sound bar after updating to 3.x, so I do not know if I would have had this problem with 2.x. I've never had a problem with 2.x or 3.x with the ATV connected directly to my new Samsung LCD. Short of waiting on an ATV update, is there any thing else to try? I really desire to have the ATV connected to my sound bar via HDMI for a number of reasonable reasons.
Thanks in advance

I have the same issue. When the ATV was connected directly to my TV via HDMI all was well. I recently inserted an Onkyo receiver into the mix and connected all of my devices to the receiver VIA HDMI with the receiver acting as the HDMI switch.
Now, the ATV video will not come on when switching back to it. I can hear the menu dings if I play with the remote, but no video... All other devices work perfectly via the HDMI switch in the receiver. The problem is with the ATV unit... The only remedy to resolve this is to reboot the ATV unit... This is VERY FRUSTRATING to say the lease...
Anyone have any ideas!!

HDMI switch with Apple TV

What HDMI switch is recommended for use with Apple TV 2?

Same problem. I can't find any switch that will do the automatic switching. Neither my Apple TV nor my Samsung Blu-Ray player will work. My vision is to be able to instantly turn on my Apple TV from my phone (using remote app), from anywhere in my house and have it override the TV. Then when I put the ATV to sleep, the cable would come back on. Although the units put out a small amount of power when "off", it seems that a truly smart switch could sense the difference between that and actual video being output from the unit.

Hdmi switcher

I only have one HDMI input on my HDTV, so I'd like to use an HDMI Switcher to take in my Apple TV, Fios box and Blu ray player and output to TV. I purchased one that works great with Fios and Blu Ray, but when switched to Apple TV, the video is scrambled. I remember hearing about some kind of handshake issue with switchers and Apple TV, so if someone could recommend a solution, or better yet, a switcher that works with Apple TV, it would be greatly appreciated, thanks!

I'm having the same problem coming out of my 2009 Mac Mini going to an IOGear 3 > 1 HDMI switcher. I want to make sure I'm getting the right device. Does the Connect PRO DVI emulator just connect to the back of the Mac Mini and the adaptor cabe then from the CP to the HDMI switch?
http://www.amazon.com/ConnectPRO-DVI-EDID-Ghost-Emulator-Professional/dp/B0032FF 7B2

Getting Audio to an HDMI Switch

I have an older (2006) mac mini that I would like to connect to an HDMI switch. Does anyone know of a cable that will connect both my audio and video from my mac mini to a single HDMI cable?
I have a DVI to HDMI but I know that DVI doesn't support audio.
Any suggestions or links to a cable that will work?
Thanks,
-Paul

I've posted a link to the connections of my Mac Mini (Mine is the one on top)
http://www.google.com/imgres?imgurl=http://www.macminicolo.net/imini/2009/19backcompare.JPG&imgrefurl=http://www.macminicolo.net/macmini2009.htm l&usg=__g0XTe9WCEizsmf9uSPb1s70zA1c=&h=2848&w=4272&sz=4244&hl=en&start=30&sig2=b Yy8PfactSYzte7FfoBgg&zoom=1&tbnid=OQyJR7LUBp8FAM:&tbnh=135&tbnw=182&ei=LC-nTem0Gsni 0QGp6-35CA&prev=/search%3Fq%3Dmac%2Bmini%26hl%3Den%26sa%3DX%26biw%3D1289%26bih%3 D910%26tbm%3Disch0%2C956&itbs=1&iact=rc&oei=Ci-nTfLWO6i20QGY59z5CA&page=2&ndsp=3 0&ved=1t:429,r:28,s:30&tx=94&ty=63&biw=1289&bih=910

Does it work with the Octava toslink 4x1 HDMI switcher?

Anyone using atv with the Octava 4x1 HDMI switcher? I'm reading reports of non-functioning HDMI switches. That would suck.

Kevin Key wrote:
I just installed the 3.0.2 firmware upgrade and I still can't get my Apple TV to transmit HDMI video to my TV via my Sony STR-DH500 receiver. All other components - Blu-Ray player, Scientific Atlanta cable TV converter, and Acer laptop work just fine with the HDMI switch in the tuner.
AppleTv is notoriously fickle with some switches/AV receivers over HDMI.
Question is whether this is due to an over rigorous HDMI implementation by Apple but it would seem odd that other manufacturers just had lax implementations.
Apple TV works when connected directly to the TV, but I really don't want to have to keep swapping HDMI cables.
No, I agree very frustrating. HDMI great when it works!
Have you considered connecting via component to the TV/receiver and analogue or optical audio ?
Is this lack of compatibility due to heavy-handed anti-piracy measures on Apple's part?
Doubt it, it happens with unprotected material presumably too.
Apple TV is the first Apple product I've ever owned, and will likely be the last. There's one good thing about Apple TV: the interface is awesome.
Yes, makes up for lots of other things.
But, I should be able to connect it via an HDMI switch, shouldn't I?
Yes, it's not necessarily AppleTV at fault but when other devices all work it certainly suggests it's the problem.
And Apple won't give me any support over the phone unless I pay $49?!
I wouldn't bother I doubt you'd get anywhere other than being advise to try a different switch or plug into your TV.
Is anyone else having this issue?
Yes, with certain device pairings several posts comment about this.
While some non mainstream brand switches might not be implemented well you'd expect Sony to be ok.
Is there anything else I should try?
Apart from component no.
Is there a hack that can fix this problem?
No.

Lion freezes after HDMI switch on Mac Mini

having two newest Models of Mac Minis, both having LCD HDMI Displays connected to them.
both running newest Software of Lion.
there is a HDMI Switch, to switch the 2nd Display on thunderbold which is a Projector between the two Minis.
One of the Minis freezes, when the HDMI port is switched away from it, the other doesnt.
Once i unplug the HDMI cable or switch back to the Port where this "problematic" Mini is connected, the freeze is unlocked and everything works again.
This is only on "the problematic" Mini, the other works fine, even when the HDMI Port is switched away from the second (working) one it does not freeze, nor having any issues.
this is weird, how can it be, that the problem only exists on one Mini with the Same configuration, and not on the other one?
And How can i possibly solve it...

I have Mac Mini (mid 2010) hooked on to 5.1 ch speakers (Bose) and LED TV (Samsung) through AV amp (Bose LS-35), all connections using HDMI cable. The dream system autput is limited to 3.1 (no sound from LR and RR).
When I then configure my speakers through the Midi-setup utility. I can specifically trigger each speaker successfully (control sound comes with the configure speakers tool). The video is also good. The problem is that whatever movie I play and whatever software I use (DVD player or Quicktime or VLC), I hear only stereo. I also tried every possible permutation in the software settings without success.
The fact that the midi-setup (in utilities) can drive every speaker indicates that the wiring is correct and even that the AV-received transmits the macs signal properly. But somehow, the output from the mac (apart from the setup tool) fails miserably.
I looked through hundreds of forums without success. People suggest using toslink and HDMI connection, but then we need to use two remotes, etc and not sure if that will either.
Apple clearly states MacMini is capable of producing 5.1 ch sound (http://support.apple.com/kb/HT4214)
Hope to get some help and guys in Apple zero in on the issue

How do I connect my MacBook Pro to an LCD TV (with HDMI and S-Video ports)?

How do I connect my MacBook Pro to an LCD TV (with HDMI and S-Video ports)? I assume I would need to use the DVI to Video adapter that came with my computer to connect to my LCD tv. I'm just not sure which port I should use on the TV. The HDMI port is being used for digital cable.
Also, does anyone know if this can be done wirelessly?

For a 2010+ MBP you can connect with a Displayport to HDMI, which will include Audio.
With older MBP you will need a displayport to HDMI, if you want audio to the actually TV, then you will need to get a cable with either digital out from MBP to the HDMI, or USB audio mixed into the HDMI
eg
http://eshop.macsales.com/item/NewerTech/CBLMDPHDMID/

How can I get audio to play from my TV when using hdmi cable? Video looks great, just no sound.

How can I get audio to play from my TV when using hdmi cable? Video looks great, just no sound.
I've tried plugging the hdmi into the TV directly and the receiver.
I get video every time. HBO to Go , Xfinity, ABC, Youtube, etc...
just no audio. Any suggestions?
I've tried starting the apps then plugging in the hdmi cable.
I never tried this before I upgraded to IOS 5.

Claudiamil-
I had not tried it with mine since upgrading to iOS 5, so I just did. I'm using a small Vizio HDTV. I did not try YouTube, but did try several videos and musical numbers. In all cases there was sound, including stereo when the source had it.
I assume you are getting sound from the iPad when the adapter is not connected, so the volume is not turned down. Dah*veed's suggestion to reset may be what you need.
Fred

Hdmi switch disables video

Similar Messages

Maybe you are looking for