High-Definition Multimedia Interface (HDMI) is a compact audio/video interface for transmitting uncompressed digital data.

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Configuring multiple monitors to use Custom EDIDs

A few months ago, I purchased a Korean 1440p monitor - the X-Star DP2710 LED. Out of the box, it does not work correctly with Ubuntu, which detects a corrupted EDID over the DVI cable, and refuses to ...
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1answer
732 views

ubuntu Server asus chromebox won't boot unless I have a hdmi display plugged in

So I installed Ubuntu Server on my Asus Chromebox, all works great except I have a strange issue. Ubuntu won't boot unless I have a hdmi display plugged in I've tested this over and over. If I plug ...
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1answer
1k views

Ubuntu 14.04 Dell XPS15 HDMI Not Detected

After some actualization my HDMI died. Can someone help me ? Ubuntu 14.04 LTS Dell XPS15 l502x Graphic Driver X.org X server - Noveau -- On system config / displays .::. only appears the ...
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3answers
3k views

Nvidia X Server Settings only shows 1 screen (laptop + external monitor connected)

I have recently installed a new copy of Ubuntu 14.04 on my Dell M3800 which has Nvidia Quadro K1100M graphics card. Later I also connected my external monitor via HDMI (HDMI to DVI connector). Then ...
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0answers
37 views

Xubuntu dual monitor broke display

After I used Settings > Display to enable my second monitor, my first display is not working anymore either. So I enabled both, then clicked save configuration since it was working and boom it ...
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0answers
261 views

Ubuntu 14.04 64-bit: Resolution reset after reboot / HDMI display wrong colors

Situation I have attached my pc, which has a nvidia geforce GT-610 graphics card, to my samsung led tv with an hdmi cable. I have ubuntu 14.04 installed. Problem The image doesn't seem to be ...
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1answer
107 views

HDMI Output Not Working Properly

Excuse my bad photographs but hopefully they help to illustrate the problems I'm having. The colour is messed up and does not look as it should. In addition to this I also do not have any audio ...
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0answers
213 views

High pitch sound from tv conected to hdmi

Audio does work but there is a high pitched sound coming from the tv when it is connected and selected as sound output via hdmi in ubuntu 14.04. I have not tinkered with any drivers or sound configs. ...
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3answers
211 views

HDMI sound out only sends left speaker

I have my 14.04 machine hooked up to my Sony Bravia TV via HDMI. When I tests the left and right speaker I only get a sound when I click on the left speaker. My TV has stereo output to my amp so sound ...
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122 views

how to automatically initialize HDMI audio output

Every time i connect my 64 bit Ubuntu 14.04 laptop to the TV via HDMI, i have to run a bash command to make the HDMI audio output option visible in System Settings -> Sound : speaker-test -c 2 -r ...
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52 views

How to get HDMI sound devices inside LXC?

I created LXC container in 12.04.3 Server and installed Gnome Display Manager to it. Now GDM works well, but I don't have HDMI sound. ubuntu@quintilis:~$ aplay -l aplay: device_list:252: no ...
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2answers
2k views

Unable to get audio through HDMI connection to TV with Ubuntu 14.04

I'm having trouble getting audio through my TV which is connected via HDMI. The item is available (HDMI / DisplayPort 2) via sound settings, but it doesn't play any sound. I'm able to get the volume ...
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0answers
172 views

Multiple Monitors Detect Add Remove Laptop Auto Change Nvidia X Server Settings

Physical Setup; 4 monitors, 1 laptop, 1 hdmi switch box, 1 graphics card used for all 4 displays. Monitors listed in nvidia x server settings as; CRT-0, DFP-1, DFP-3, DFP-4. Short description of ...
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1answer
1k views

Error installing oem-audio-hda-daily-dkms while getting HDMI audio to work on TV

I am trying to connect my 64 bit Ubuntu 14.04 Dell Inspiron laptop to my Sony LCD TV with HDMI. The video works, but the audio does not. It continues to give audio from the laptop, not from the TV. ...
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2answers
151 views

Turn Monitor Back On after xrandr

I keep my Laptop PC always connected to my HDMI tv. When I am watching a movie on the tv, i use the command xrandr --output LVDS1 --off to turn my laptop screen Off (it is annoying to see the movie on ...
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0answers
468 views

No sound on any web browser [closed]

I was using my laptop to play Youtube on my TV. I had no problems. It was going through my HDMI and I was using the cable to play sound through the TV. I disconnected the cable and since then there ...
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0answers
175 views

Second screen not working with Kubuntu 14.4 or any other Ubuntu OS

I have an Nvidia Geforce graphics card and have been searching for weeks for a fix to get both screens working and have no idea how to fix this issue. Both screens are hooked up with HDMI cables. I am ...
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4answers
5k views

Overscanning picture problem using HDMI with Intel Graphics

When I use my laptops HDMI on a TV the TV overscales the picture (~5-10% is missing at the edges). There is no option on the TV (sporting a 720p resolution btw). The comp is running Intel HD Graphics ...
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0answers
315 views

Problems with HDMI output resolution using Xubuntu 14.04

I got a problem using Xubuntu 14.04 LTS while connecting it to the HDMI port from a Samsung LN40R81. Straight to the point, the resolution is lower than the required (1366 x 768). This resolution ...
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0answers
68 views

Occasional HDMI hiccups for a few seconds on NUC with Ubuntu 14.04

I have an Intel NUC system with Ubuntu 14.4 installed. Occasionally, the screen (a Philips TV connected using a HDMI cable) will go black and mute, then come back to life a few seconds after. I ...
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1answer
465 views

How to choose default output port (boot screen) in a nvidia card?

I have a NVida card and binary drivers. I have my monitor connected at the vga port and the TV at the HDMI port. When the computer boots, the grub menu and sometimes the login screen goes to the TV ...
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1answer
356 views

external HDMI monitor turns off after a few minutes

When connecting my 14.04 ubuntu laptop with HDMI to my TV, the image is turned off after a few minutes, even when connected to the power. I then move the mouse and the image returns. How can I prevent ...
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0answers
386 views

Second monitor no longer working on Ubuntu 14.04 [Intel]

My laptop is an Acer Aspire M and I used to connect a second monitor through hdmi regularly. About a month ago, it simply stopped working. I don't really know anything I can do, so any help would be ...
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0answers
101 views

HDMI not recognized

I'm running Trusty on my G500 Lenovo laptop, with inter graphics. I just bought a DELL P2214H screen, but my computer recognizes only the VGA, trying to use the HDMI port (with a HDMI 2 Display Port ...
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1answer
152 views

HDMI TV Issues with Acer V3-571 laptop

Im a complete Linux novice. Iv installed Mint today on my laptop. So far so good. However Im having a few teething issues with regards to my HDMI connection. When I connect to my TV via HDMI the TV ...
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0answers
148 views

External Display HDMI out not working

I know this may be a stupid question but are Samsung monitors supported in Ubuntu? I ask because I've recently switched over from windows to Ubuntu 14.04 on my laptop. I have a Samsung monitor I user ...
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0answers
47 views

WQHD HDMI GeForce 460M

I have the proprietary nvidia driver installed in Ubuntu 13.04. I have a toshiba qosmio laptop with the GeForce 460M GPU. In windows, I was able to use the configuration utility to successfully get it ...
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0answers
766 views

Why is XBMC failing to play audio from my HDMI port?

I have the following setup: Ubuntu 14.04 Server Latest Nvidia video drivers ALSA installed PulseAudio NOT installed XBMC 13.1 Gotham installed The problem: running speaker-test -c2 -D plughw:1,7 ...
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0answers
370 views

Installing NVIDIA drivers for GeForce GT 525M on 14.04

I've been trying to install NVIDIA drivers for 14.04 so I can use a HDMI output on my laptop. However each time that I have tried to install nvidia drivers my screen is blank after logging in. I've ...
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0answers
843 views

HDMI connection between TV and a laptop with Ubuntu (14.04) + NVIDIA Optimus possible?

Question briefly: Is it possible to connect a Ubuntu laptop with NVIDIA Optimus to a TV via HDMI connection? The connection should also have sounds included, because otherwise it would be easier just ...
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3answers
2k views

Ubuntu 14.04 Pulseaudio in HDMI sound crackling

I've recently change my PC OS from MS to Ubuntu. Ubuntu 14.04 can correctly find my HDMI audio but with terrible echo and crackling sound. I fix the echo issue by following the guide here: Sound ...
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1answer
200 views

How do I use multiple laptops as external display over network?

I have a relatively powerful computer (8gb ram, 64bit, quad core) and I can easily drive three monitors, my tv over hdmi, my 17 inch hd internal laptop display, and an external hd display. I have ...
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0answers
86 views

Problem with MBO that does not support HDMI sound

Processor is Intel G2010, but motherboard does not support sound through HDMI. Ubuntu 12.04 64bit. Problem arises when HDMI TV is connected; sound is still output through analog channel (and can be ...
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1answer
104 views

I have a problem with HDMI sound on both Ubuntu 14 and Windows 7, is this hardware?

I have a problem with HDMI sound on both Ubuntu 14 and Windows 7, is this hardware? The problem only occurs when running games (something sound intensive) I get ugly noise through the speakers. This ...
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0answers
174 views

Can't change monitor to native resolution

I'm using a laptop running ubuntu 14.04 LTE, and I have secondary monitor LG Flatron M197WD, which according to the lg website can run in a 1366x768 resolution. This mode didn't show up in either the ...
2
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1answer
267 views

Sound lost in Chrome (and only Chrome)

I suddenly lost sound in Ubuntu Chrome (no more YouTube, or Spotify, or SoundCloud sound or any other in Chrome). All other apps such as Firefox or VLC work fine. There are a bunch of nice tips at ...
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0answers
198 views

Recent update in ubuntu 14.04 resulted in my external monitor being unable to go above 1024x768 without being met with a black screen/no signal

This is all through HDMI. I cannot go above 1024x768 or I get a black screen / no signal. This means anywhere between 1152x864 and 1920x1080 (which is what I had been set at before the issue). ...
2
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1answer
129 views

HDMI issue with Macbook pro 8,1 on Ubuntu 14.04

I have a Macbook pro (MBP) 8,1 OSX version 10.7.5, and I'm am running Ubuntu 14.04 I have been trying to connect my MBP to my TV with my HDMI cable but it seems like Ubuntu does not detect anything ...
2
votes
1answer
333 views

Default sound device different when run as service

I use squeezelite to play audio streams on my laptop. The laptop has a built-in Intel sound card, but I use the HDMI connection to my monitor to play the sound on my monitor speakers. This works well ...
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1answer
84 views

need to know how to program laptop to connect to tv to laptop using hdmi cable or vga cable

i am trying to program my laptop and tv so i can watch my laptop on my tv using a hdmi and vga caable .i also have a s video cable.please help me to hook it up proper.i also need to program them both ...
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1answer
34 views

Acer Revo 3700 display issue

Acer Revo 3700 When connected to a pc moniter i have no issues. i took the unit down to connect to my sony flat via hdmi. when i powered on the machine it booted up, the purple screen, ubuntu logo ...
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1answer
455 views

After adding Amd video card and installing drivers - NO SOUND (in all OS) [closed]

Ubuntu 13.10 x64, Windows 8.1 x64. CPU: Intel i-4771 MB: Asrock B85 Pro Video card: AMD Radeon 7750 Had a computer properly working with Win8, Ubuntu 13.10, Ubuntu 14.01 Live CD. I am using two ...
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0answers
229 views

Dual display detected but not working after startup 14.04

Here's my situation--I've got an HP Envy laptop running 14.04 with an AMD A10 APU. Catalyst display dashboard and the works are installed. As the system boots up, it acknowledges the external display ...
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1answer
1k views

xrandr --addmode doesn't add to the wanted output (DVI-I-0), instead adding to HDMI-0

The monitor I use is a Samsung SyncMaster S24B300, and no matter what the heck I do, Ubuntu refuses to use 1920x1080 at 60hz for the output I want, despite my monitor (which is unrecognized by the ...
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1answer
788 views

Sound problems in Ubuntu 14.04

I am having problems using my audio ports in Ubuntu 14.04. I didnt notice this before, because I use wireless speakers and they use a USB port. But today I tried to use my headphones and I heard ...
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1answer
352 views

Distorted sound unless PAVUCONTROL is open?

Seems as though there ought to be a simple solution to this: My sound comes through a jack in the back of a Samsung HDMI monitor. If pavucontrol (Pulse Audio Volume Control) is running (if the ...
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0answers
19 views

Ubuntu Touch HDMI out support on a Nexus 10 [duplicate]

Does Ubuntu Touch support HDMI out on a Nexus 10?
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0answers
74 views

Multi screen inactivity suspend

I am new at this so please bear with me, My question is: I have two screens on my pc one 22" monitor and one 26" HDTV now the monitor is connected via a VGA port and the TV via a HDMI port both of ...
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0answers
605 views

Xubuntu 14.04 - HDMI Display no longer detected

I have a Sager NP8268, and install Xubuntu 14.04. I have been using an external Asus PB278Q monitor for 3 weeks or so via HDMI. Today, the monitor is no longer detected by xfce4-display-settings. ...
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0answers
177 views

HDMI Monitor: Cable not connected, but “visible” in the PC (Ubuntu 14.04)

I have a Monitor connected via HMDI to my laptop. Then I connected it with a TV via HDMI to watch a Movie. When I connected it back to the Monitor the Monitor shows only: Cable not connected The ...