HDMI to (2) Monitors

I am trying to split a customers Mac Mini to 2 Sony LCDs. I have converted VGA to HDMI and it works fine on both sets if independent. When we go to a one in two out HDMI splitter it will work until the Mac downloads new update and restarts or goes to sleep. You then have to manually unplug both HDMIs to resync. Is this a Mac issue, HDMI, HDCP???Can anyone help?

Any answers? I a similar question. If theres any way to connect my MacBook Pro into 2 monitors. I'm using right now just one.

Similar Messages

Use of HDMI (HDCP enabled) Monitor with MacBook

Hi
I’ve been searching the discussion boards to try and answer this but as I haven’t been able to get a definitive answer I will post my own thread (with apologies if I’ve missed a previous response that covers this)…
I am about to purchase one of the new HP w2408h monitors which has VGA and HDMI (with HDCP) inputs:
http://h10010.www1.hp.com/wwpc/uk/en/ho/WF05a/20491-314293-314303-314303-314303- 80644319.html
My concern is that the HDCP will cause an issue when using this with my Macbook. The posts I’ve read so far talk about issues with TVs rather than monitors – does this make a difference?
I would expect to be able to utilise the full 1920 x 1200 resolution, will this be possible?
My plan is to use a DVI to HDMI cable via a mini DVI to DVI adaptor if this will do the job (as a fallback I could use VGA connections, but would much prefer to use the digital signal).
Thanks in anticipation.

OK, so I bit the bullet and ordered the monitor (HP had assured me it would work OK).
Most importantly it does work, exactly as I wanted it to (MacBook recognised it immediately).
In summary, the MacBook is connected via a DVI adaptor to a DVI to HDMI cable. I'm then passing the cable through a passive HDMI switching box (also connected to a PC) which is connected (via HDMI to HDMI) to the monitor.
I'm using the MacBook in Extended Desktop mode with the external monitor running in its native 1920 by 1200 resolution - it looks great.
I am able to flick between the MacBook and a PC using the switching box. When in PC display mode, the MacBook reverts to single screen mode.
I am not using any HDCP encoding (as far as I know).
Hope this info is of use.

Mac mini late 2012, hdmi to Samsung Monitor no signal

mac mini late 2012, OS X ver. 10.9.2, hdmi to Samsung Monitor (S22C300) no signal,
but thunderbolt to hdmi adaptor can work, any fix for hdmi issue?

It would seem that if the Samsung monitor is not waking from sleep, then Samsung has not properly implemented the Wake on Signal that the Mini is sending out. There is nothing unique that Apple would do for one manufacturer. The signal is being sent out and that is why other monitors wake. Your Samsung, and mine, which are both probably different models are not waking when requested by the Mini. The best that can be done is to set the Energy Saving System Preference to not put the monitor to sleep. Use the Screen Saver as desired.

Why does a DVI or VGA look better than HDMI for 2nd Monitor

Why does a DVI or VGA connection for a program monitor look better than HDMI. I've tested this on several systems with CS5x and CS6. The full screen output from premiere definitely looks worse with HDMI.
I can often see visual differences with the Windows GUI as well, over sharpening of text and lines, harsh rendering of gradients. It looks like a VGA signal displayed on a television.
I've looked at the NVidia stetting and it appears to be set to 1920x1080 at 60hz either way, DVI or HDMI. On one Acer 20 inch monitor the was VGA, HDMI, Composite, Component, and Digital Tuner, but no DVI. The program monitor has always looked blah from the HDMI. So I recently switched the connection to a DVI to VGA adaptor, and now the video looks so much better.
Any thoughts or explanations?

Just because the monitors accept a 1080P signal doesn't mean their native resolution is 1920x1080. At 20 inch they very likely can scale that signal down to the native resolution of the panel which may be 1600 x 900 or another resolution that is 16 x 9 resolution. That scaling can be done by the GPU or firmware on the Monitor depending on the video driver options and the firmware options. That scaling is also the most common cause to text and icon blurriness you are talking about. As an example there are Pro monitors that accept a 4K signal but scale it down to 2.5K or 2K on the actual panel. You might try going into your video card settings such as Nvidia control panel and look for the scaling options. Select GPU scaling and see if the preview is better. If that doesn't work select no scaling and see if it's better if the monitor firmware handles the scaling.
Eric
ADK

HDMI output to monitor not displaying all colors

I am trying to use a second monitor on my Satellite S55t-b5152 and am able to get 1920x1080 output from the HDMI port through an adapter to either VGA or DVI into my external monitor, but with either adapter the colors look washed-out and not all the colors that are displayed on the internal monitor show up on the external monitor. For example the position indicator in scroll bar on some apps shows up on the internal monitor, but disappears when I drag that window onto the external monitor. I've tried multiple monitors and they all have the same symptom. I've investigated this some on external forums and it seems to be that the HDMI output under some conditions assumes that it is connected to a TV instead of a monitor and it limits the output color range. On some graphics drivers it is possible to override that assumption and get the full range output from the HDMI port. I haven't found a way to do that for the graphics driver on the S55t-b5152. Has anyone figured this out?

Satellite S55T-B5152
through an adapter to either VGA or DVI...
Just want to comment that I'm not at all surprised that an adapter does not produce true colors. I'm sometimes amazed they work at all.
Yours is HDMI 2.0 which complicates things still further.

MBP via HDMI to 24" monitor only runs the monitor not MBP display??

I own a 2008 Macbook Pro 15" from 08.
Have used monitors in the past but none via HDMI.
Recently got an Asus VE247H 24" monitor.
Connectd via DVI or VGA it works with a terrible screen resolution but i can still use my MBP pro display as a second monitor.
When using HDMI the resolution is great at 1080P but i cannot use my MBP display as a second monitor.
When using HDMI to mini display port am i limited to just 1 monitor?
Intel HD graphis with auto switching to NVIDIA GeForce GT 330M. Hopefully that helps.
Chipset Model:          NVIDIA GeForce GT 330M
Type:          GPU
Bus:          PCIe
PCIe Lane Width:          x16
VRAM (Total):          256 MB
Vendor:          NVIDIA (0x10de)
Device ID:          0x0a29
Revision ID:          0x00a2
ROM Revision:          3560
gMux Version:          1.9.21
Displays:
Display Connector:
Status:          No Display Connected
VE247:
Resolution:          1920 x 1080 @ 60 Hz
Pixel Depth:          32-Bit Color (ARGB8888)
Display Serial Number:          BBLMQS016702
Main Display:          Yes
Mirror:          Off
Online:          Yes
Rotation:          Supported
Television:          Yes
Way too cheap to upgrade to an apple display... Hoping for a 15" macbook air this year to arrive and then i'll think about a different display.
Thanks!

forgot to say...
OSX 10.6.8

DVI to HDMI on big monitor

I have a 28" monitor with HDMI inputs but my older 13"macbook won't "run" the monitor, will the new Macbook with NVIDIA GeForce 9400M support this size monitor (and will it work with the new Mini-coming out next week?).
The display works great with my MacPro.

Dear Hatter
Here is the graphics card info
ATI Radeon X1900 XT:
Chipset Model:          ATY,RadeonX1900
Type:          GPU
Bus:          PCIe
Slot:          Slot-1
PCIe Lane Width:          x16
VRAM (Total):          512 MB
Vendor:          ATI (0x1002)
Device ID:          0x7249
Revision ID:          0x0000
ROM Revision:          113-A52027-140
EFI Driver Version:          01.00.140
Displays:
G75f+-1:
Resolution:          1024 x 768 @ 85 Hz
Pixel Depth:          32-Bit Color (ARGB8888)
Display Serial Number:          P5U042608315
Main Display:          Yes
Mirror:          Off
Online:          Yes
Rotation:          Supported
Display Connector:
Status:          No Display Connected

HDMI disconnected and monitor not recognized [SOLVED]

Hallo guys,
I run a desktop with an ASUS motherboard and an ATI video card.
I have two monitors, the first is connected by DVI and is properly workling, the second accepts DVI or VGA, then I used a VGA-HDMI adapter to plug it into the HDMI port of my graphic card.
But the monitor is not recogized and is in stand-by, waiting for a signal.
I connected the same monitor+vga+hdmi connector to my VAIO laptop (also Arch running) and it works.
Could anyone help me?
Thanks.
Last edited by Astroarch (2014-09-11 08:15:28)

Try another adapter, booting up with the monitor turned on or simply fake a monitor connection on the vga side and see if it is recognized, similar to this (at your own risk obviously).

HDMI LCD as Monitor

Searched the forum and found similar issues, but no definitive explanations or resolutions.
Came into a free Power Mc G5 tower, recently, and thought I'd connect it to a 26" Toshiba LCD TV.
The result was "no video signal".
I plugged in a second (CRT) monitor to look at what was happening. The Mac knows there's a Toshiba TV plugged into it, and gives me all the resolution options I could imagine.
But "no video signal", as far as the Toshiba is concerned.
Is moving a video signal to an HDMI-equipped TV more complicated than simply buying a cable with DVI on one end and HDMI on the other?
Thanks.

Not an issue of selecting the proper input. The TV has two HDMI sockets. I've tried them both, and made sure to select them via the TV's menu.
Here's the Mac's video data:
ATI Radeon 9600:
Chipset Model: ATY,RV351
Type: Display
Bus: AGP
Slot: SLOT-1
VRAM (Total): 128 MB
Vendor: ATI (0x1002)
Device ID: 0x4150
Revision ID: 0x0000
ROM Revision: 113-A58504-113
Displays:
TOSHIBA-TV:
Resolution: 1280 x 720 @ 60 Hz
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
Television: Yes
TOSHIBA-TV:
Resolution: 1280 x 1024 @ 60 Hz
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
The first "Toshiba" is the DVI-HDMI connection. The second is the DVI-VGA connection--the one that works just fine. And, no, plugging them in separately doesn't do anything. When I have them both plugged in, the computer seems to think it's talking to two different monitors, and I can use the computer (through the VGA connection).
I have tried setting the DVI-HDMI connection to a variety of resolutions. 1280x720 is merely the last one I tried.
As far as the "native resolution" of the TV: don't know. Nothing like that is stated clearly in the TV's documentation, but I'll keep looking.

Dell XPS 15 : Nvidia hardwired HDMI with multiple monitors with KDE

Hello everyone,
I did an Archlinux instalation a few months back in my Dell XPS 15 laptop and configured my Nvidia card with bumblebee and primusrun.
I have a extra monitor now and want to use dual monitors with my system.
I tryed the following guides for setting up the dual screens outputs without success:
https://wiki.archlinux.org/index.php/Bu … creenclone
https://wiki.archlinux.org/index.php/De … al_Display
THe output from the last try was this:
[chicao@svadisthana etc]$ startx
/usr/bin/Xorg.wrap: Only console users are allowed to run the X server
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error
Couldn't get a file descriptor referring to the console
[chicao@svadisthana etc]$ sudo startx
xauth: file /root/.Xauthority does not exist
xauth: file /root/.Xauthority does not exist
X.Org X Server 1.16.2
Release Date: 2014-11-10
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.17.2-1-ARCH x86_64
Current Operating System: Linux svadisthana 3.17.3-1-ARCH #1 SMP PREEMPT Fri Nov 14 23:13:48 CET 2014 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=40feb1b1-2717-4fee-89b9-e1e9cdd03278 rw quiet
Build Date: 10 November 2014 07:52:13PM
Current version of pixman: 0.32.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.1.log", Time: Thu Nov 27 11:56:17 2014
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
removing GPU device /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card1 /dev/dri/card1
/etc/X11/xinit/xinitrc: line 55: exec: xterm: not found
/etc/X11/xinit/xinitrc: line 51: twm: comando não encontrado
/etc/X11/xinit/xinitrc: line 52: xclock: comando não encontrado
xinit: connection to X server lost
waiting for X server to shut down (EE) Server terminated successfully (0). Closing log file.
My bumblebee.conf file:
# Configuration file for Bumblebee. Values should **not** be put between quotes
## Server options. Any change made in this section will need a server restart
# to take effect.
[bumblebeed]
# The secondary Xorg server DISPLAY number
VirtualDisplay=:8
# Should the unused Xorg server be kept running? Set this to true if waiting
# for X to be ready is too long and don't need power management at all.
KeepUnusedXServer=true
# The name of the Bumbleblee server group name (GID name)
ServerGroup=bumblebee
# Card power state at exit. Set to false if the card shoud be ON when Bumblebee
# server exits.
TurnCardOffAtExit=false
# The default behavior of '-f' option on optirun. If set to "true", '-f' will
# be ignored.
NoEcoModeOverride=false
# The Driver used by Bumblebee server. If this value is not set (or empty),
# auto-detection is performed. The available drivers are nvidia and nouveau
# (See also the driver-specific sections below)
Driver=
# Directory with a dummy config file to pass as a -configdir to secondary X
XorgConfDir=/etc/bumblebee/xorg.conf.d
## Client options. Will take effect on the next optirun executed.
[optirun]
# Acceleration/ rendering bridge, possible values are auto, virtualgl and
# primus.
Bridge=auto
# The method used for VirtualGL to transport frames between X servers.
# Possible values are proxy, jpeg, rgb, xv and yuv.
VGLTransport=proxy
# List of paths which are searched for the primus libGL.so.1 when using
# the primus bridge
PrimusLibraryPath=/usr/lib/primus:/usr/lib32/primus
# Should the program run under optirun even if Bumblebee server or nvidia card
# is not available?
AllowFallbackToIGC=false
# Driver-specific settings are grouped under [driver-NAME]. The sections are
# parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto-
# detection resolves to NAME).
# PMMethod: method to use for saving power by disabling the nvidia card, valid
# values are: auto - automatically detect which PM method to use
# bbswitch - new in BB 3, recommended if available
# switcheroo - vga_switcheroo method, use at your own risk
# none - disable PM completely
# https://github.com/Bumblebee-Project/Bumblebee/wiki/Comparison-of-PM-methods
## Section with nvidia driver specific options, only parsed if Driver=nvidia
[driver-nvidia]
# Module name to load, defaults to Driver if empty or unset
KernelDriver=nvidia
PMMethod=none
# colon-separated path to the nvidia libraries
LibraryPath=/usr/lib/nvidia:/usr/lib32/nvidia
# comma-separated path of the directory containing nvidia_drv.so and the
# default Xorg modules path
XorgModulePath=/usr/lib/nvidia/xorg/,/usr/lib/xorg/modules
XorgConfFile=/etc/X11/xorg.conf
## Section with nouveau driver specific options, only parsed if Driver=nouveau
[driver-nouveau]
KernelDriver=nouveau
PMMethod=none
XorgConfFile=/etc/bumblebee/xorg.conf.nouveau
My /etc/X11/xorg.conf:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc/"
FontPath "/usr/share/fonts/TTF/"
FontPath "/usr/share/fonts/Type1/"
FontPath "/usr/share/fonts/cyrillic"
FontPath "/usr/share/fonts/100dpi/"
FontPath "/usr/share/fonts/75dpi/"
EndSection
Section "Module"
Load "glx"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
Identifier "Card0"
Driver "nvidia"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "Card1"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Card1"
Monitor "Monitor1"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
The X server is started by KDM. And don't know if there is some sort of way that I should configure KDE to start X with the bumblebee configuration.
Anyway, does somebody came across this kind of issue? How can I make my external and laptop screen work properly ?

I solved it by brute force:
pacman -Rdd libgl
(delete conflicting package without checking dependencies)
pacman -S nvidia nvidia-utils
And now I can watch high-quality video on a big external TV through HDMI (driven by Nvidia card), while also independently using internal monitor.

After 10.5.7 HDMI connected 24" Monitors only allow 1080p

After 10.5.7 update my 24" LG L246WH monitors which are connected with HDMI / DVI-D cables to the NVIDIA 8800 GT only allow 1080p and the monitor list doesn't show the 1920x1200 resolution anymore.
Now I have to use the DSub connection with VGA cables and DVI adapters to get back to my normal desktop settings.
Why this ?

Having the same issue, but with a MacBook 2,1 and a HP w2408h, connected to HDMI with a HDMI-DVI cable on a Mini-DVI to DVI adapter (this display has no DVI port, the HDMI port is the only digital input it supports).
Prior to 10.5.7 I could run the native resolution of 1920x1200 just fine. Now the system insists that 1080p is the highest resolution possible.
This is definitely a global regression in the way OS X handles monitors connected using HDMI. Not driver specific.

GTX 760 No HDMI Signal to Monitor

So the other day I was playing Arma 3 and all of a sudden I noticed my frames started to drop about 4fps every 5 secs until it was 2 fps where the game then crashed and a windows message popped up saying my graphics driver crashed I then proceeded to restart my PC and it could no longer get a HDMI signal. I recently just built this last sunday. 28/12/14. Whenever I boot it up now the fans turn on including GPU ones but the motherboard shows the debug codes D6 and 92.
Specs: Motherboard: MSI Gaming 5 Z97 LG1150, CPU: i7-4790k, GPU: GTX 760 Twin Frozr 2GB VRAM, RAM: Corsair Vengeance Pro 16GB (2x8GB) 1866MHZ, Storage: 2TB Seagate 7200RPM and a 120GB Kingston SSD- OS on this!, OS: Windows 8.1 Enterprise, Monitor: Asus NV247 PSU: Cooler Master B700 700w
Any suggestions on what to do?

Hi,
Did you try to reset CMOS? >>Clear CMOS Guide<<
Also did you have a chance to watch the temps of the GPU? There is slight possibility it was badly made or screws not properly screwed in and heatsink didn't make enough contact so GPU burnt itself.
What about different video ports?
Did you consider running the system out of the case on non conductive surface (e.g. wooden table or motherboard box) with single RAM stick?
Does your system POST and work normally if you take the GPU out?
Also try your graphics card in different computer if possible. Else speak to a friend or local IT services (or shop you got it from) and ask for testing in their system.

Use HDMI and VGA monitors?

Hello,
I have a Macbook Pro with the HDMI port, and 2 display ports.
I currently have the HDMI port plugged into an HDMI monitor, and I'm using a display port with a VGA adaper, to go into a VGA monitor.
However, I can only display one at a time. If the VGA is plugged into the display port, then the HDMI monitor does not work?
Is my mac not compatible to run both at the same time? Or do I need to change a setting somewhere....
Thanks!!

You need a cable from the minidisplay (thunderbolt) port and another from the HDMI port, you can buy a mini to VGA adapter from the Apple store (then a regular VGA cable) and use a normal HDMI cable for the other.

I want to have a third display for my rMBP, I have HDMI to my monitor; Can I have Thunderbolt to HDMI, to hook up to a TV?

As the title says, is it possible?

Yes.
<http://store.apple.com/us/product/HA825ZM/A/belkin-mini-displayport-to-hdmi-cabl e-2-m65-ft>

MacBook Pro retina display goes black while outputting video through HDMI to external monitor??

I frequently connect my MacBook Pro to my 42inch Panasonic TV to watch movies/videos. I use VLC media player for all my playback. The problem I'm running into is that when I put VLC media player into fullscreen mode on my external display, my retina display goes black (I can still see the finder bar at the top and when I mouse down the dock appears but the rest of the display shows all black. If I click on Safari it will open but I can't see it on my MacBook display unless I take the external display out of fullscreen mode.
I would still like to be able to do things on my MacBook while video is playing. I've played around with the display settings but they're pretty limited and I can't figure out how to get it to work the way I'd like. I've seen people having up to 3 or 4 displays hooked up, I'm just trying to hookup one. I would consider this a severe limitation of OS X if I'm not able to separately manage the displays. Hopefully there is a setting or something I'm just not seeing. Thanks.

Yeah, fullscreen mode still doesn't play nice with multiple monitors. The common workaround is to stretch the window out to the edges of the screen instead of using actual fullscreen mode.

HDMI to (2) Monitors

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