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

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Nvidia HDMI sound is not working, cant update ALSA driver

I recently installed Ubuntu 16.04 on my desktop PC. My graphics Card is 780GTX, it is recognized and works. I updated to the 361 nvidia binaries driver. But the sound over HDMI doesnt work. The ...
2
votes
1answer
124 views

Ubuntu 16.04LTS extended display not working

I recently upgraded my system from Ubuntu 15.10 to 16.04LTS. But after the upgrade, my extended display is not being detected. I am connecting the second display through an HDMI port. I even tried ...
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0answers
13 views

Primary screen turns off after disconnecting external monitor

I have a Dell external monitor connected to my ASUS UX305UA laptop. I use HDMI port, which is connected to HDMI-VGA converter, which connects to the monitor. When I turn on my laptop and connect the ...
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0answers
21 views

Errors when adding a 5th monitor

I seem to have hit a plateau, and it's not for lack of searching and reading and testing things! I've got a new Dell XPS 8900 with a GTX970 running 15.10; it has 3x DisplayPort 1.2 ports and a single ...
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0answers
56 views

No second display over HDMI (16.04 LTS) hybrid graphics

I cannot seem to enable or use my HDMI port in Ubuntu 16.04 LTS. As I connect it with my TV, there's no signal on either ends. Detecting displays doesn't work. It probably has something to do with ...
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0answers
13 views

How do I configure Ubuntu to support VGA to HDMI Graphics

I have a Dell Optiplex 745. I just installed Ubuntu 15.1 I have an Acer HD touch monitor. I use a 4 port HDMI KVM w/audio. To connect the VGA output to the KVM, I bought a TrippLite VGA to HDMI ...
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0answers
12 views

HDMI sound fails, inexplicably resolves, repeats failure (Intel NUC to Viewsonic Monitor)

My HDMI sound is connected from an intel NUC core i3 (a version without all the extra legacy serial and vga interfaces) and connected to a 1080p ViewSonic Monitor with built in speakers. My sound ...
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0answers
117 views

16.04 ALSA / Radeon R9 380 HDMI Audio

I recently upgraded from Ubuntu Studio 15.10 to 16.04, and audio output from my GPU's HDMI port no longer seems to work at all. Output from alsa-info.sh can be found here, which includes aplay -l ...
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0answers
16 views

Is it possible to automatically change sound output from HDMI to headphones when I plug them in?

I've been using my laptop's built in speakers. When I plug in my headphones, sound stops coming out of the speakers and comes out of the headphones instead. I have a HDMI monitor and would like to use ...
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0answers
14 views

How do I fix overscan?

Please don't mark this as duplicate! I have read many similar question but could not find a good answer for my situation. I am running Ubuntu 15.10. I have a Sansui SLED2900, which works fine over ...
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0answers
41 views

How can I make Lubuntu duplicate the current resolution on an external monitor through HDMI?

In Windows there's an option to "Duplicate screen" when you connect an hdmi cable to an external monitor. That way both screens, the TV's and the Laptop's, have the same resolution and it doesn't ...
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0answers
13 views

No sound from HDMI audio output (NVIDIA)

I can't get audio out from HDMI for my HTPC. Using Ubuntu 14.04.1 LTS - KODIbuntu on Lenovo Ideacentre Q150 hardware with NVIDIA ION graphics. The problem appears to be that the PC doesn't recognize ...
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3answers
9k views

Lubuntu 14.04.1 — no audio from HDMI

I recently put together a new computer as an HTPC. I've tried a few different flavors of Linux on it before settling on Lubuntu. The only problem? I can't get any sound out from the system whatsoever. ...
0
votes
1answer
100 views

BQ M10 Ubuntu Touch - Micro HDMI Not Outputting to TV

I'm trying to use my BQ M10 (Ubuntu Touch Tablet) with my 65 inch TV as the display. I purchased a GE brand "Mini + Micro HDMI to HDMI Adapter" from Walmart today and I have another adapter that ...
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2answers
253 views

16.04 second monitor does not work

I always had problems with second monitor on my Ubuntu (it was not able to fall to sleep mode) but after upgrade it does not work, the scenario is very similar, it does not change mode to sleep, but ...
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votes
6answers
43k views

No sound through hdmi to TV

I have a Toshiba Satellite Laptop Model P745-S4102 with Intel integrated graphics and Ubuntu 12.04 LTS installed recently. When I connect my HDMI TV to it I only get video through it and no audio. In ...
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vote
1answer
52 views

System does not boot up without connected to external monitor via HDMI

yesterday I just updated Ubuntu Gnome from 15.10 to 16.04. I have an external monitor connected to my Asus G55VW notebook via HDMI. After the update there weren't any problems until today, when I ...
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0answers
33 views

HDMI screen gives “no signal” but VNC screen shows window manager correctly

My Ubuntu 12.04 kernel is running perfectly fine and even the desktop shows in all its glory when I connect via a VNC client from my Mac. It even recognizes my HDMI monitor that is physically plugged ...
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1answer
38 views

16.04 switches HDMI to Speakers after screen dims

I have following set-up of audio and video devices connected via HDMI cables: laptop --> AV receiver with speakers --> LCD display When my screen goes black due to inactivity, also sound ...
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2answers
4k views

No HDMI sound on ubuntu 13.10

I have my computer connected to my Sony TV, the HDMI video output works fine but I cant get the audio to work. I can see the HDMI output option in the sound settings but nothing happens. When I plug ...
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0answers
123 views

Enable discreet graphics card (AMD, Intel) 16.04 LTS

I have a hybrid-graphics system with power-saving onboard Intel graphics, and an ATI accelerator (Lenovo z51-70, i5, 8 GB RAM, SSD) Back in 14.04, with fglrx, I used to have ATI Catalyst, which would ...
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3answers
2k views

How do I adjust display size, not resolution?

I have my Ubuntu 11.10 PC plugged into a TV using an HDMI input. The edges of the screen get cut off, and I can't adjust the television's settings for HDMI. I can adujust the "position and size" on ...
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0answers
31 views

Ubuntu 14.04 update has caused desktop to be larger than physical screen

I've been running 14.04 with lxde on a Foxconn nanoPc for some time. It's a low power home network server (dnsmasq, radius, mysql), doubling as a home office skype center since it's always on and low ...
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votes
1answer
5k views

How do I disable dual screen after connect HDMI cable?

I plugged the HDMI connector and turned on the computer, but when the log in screen appears the laptop screen appears split in 2, one top and one bottom. The external monitor connected via HDMI works ...
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0answers
23 views

My HDMI audio output disappears after my screen is turned off for a long while

CPU: intel i5-4460 iGPU: intel HD4600 It happens after I turn my screen off for a long while, if it isn't turned off for a long time, it won't happpen.
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1answer
86 views

Turn off external monitor when inactive

I added an external monitor to my laptop last week and have almost everything working like I want except for the Brightness & Lock behavior. I've long had this set to "Turn screen off when ...
0
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1answer
11 views

Sounds works from HDMI but not from Speakers [closed]

i'm using fluxbox and an HDMI desktop. I would like to plug in my speakers but when i plug them audio still comes out from HDMI desktop. What should i do?
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votes
1answer
4k views

Ubuntu Mate For Rpi2 default resolution can't be changed

I have installed Ubuntu Mate 15.04 on my brand new RPI2 and the default resolution in the HDMI port is very small and can't be changed using system default display window. But when I play video using ...
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0answers
356 views

xrandr does not “connect” to intel i915 HDMI output

right now i'm using ubuntu 16.04 with an additional KDE plasma5 dektop on a Pansonic FZ-g1 toughpad with an external gechic hdmi touchscreen > lspci -ks 0:02 00:02.0 VGA compatible controller: ...
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votes
3answers
4k views

If external display is connected {“Lid is closed : Do nothing” } else{ “Lid is closed: Suspend” }?

My laptop suspends when I close the lid, as I want it to. However, when I connect an external display (HDMI) and keyboard (USB), I like to be able to close the lid of the laptop, without suspending ...
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0answers
41 views

external Samsuang HDMI monitor is not recognized after software update on Ubuntu 14.04

I have dell Vostro 5000 with Ubuntu 14.04 after software update it stopped recognize my external HDMI Samsung Monitor. It has both Nvidia and Nvidia and I am working on the Intel one. Can you please ...
2
votes
1answer
4k views

HDMI not detected Ubuntu 12.10 - ATI Radeon HD 6670

Brand new to Linux, so help a young blood out :-) (I'm a novice/hobby programmer, but completely new to Linux command syntax, etc) Brand new everything Rig. Fresh install of Ubuntu 12.10. Ubuntu ...
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1answer
76 views

Ubuntu 14.04 updated last night - HDMI video stopped working

Ubuntu 14.04 with an integrated Intel graphics card that has worked for 6 months connected only to a Samsung TV via HDMI. Software update ran last night, installed some new packages. After ...
2
votes
1answer
5k views

Dual monitor connected to hdmi port not detecting on Dell Vostro 3750

I am using Dell Vostro 3750 laptop with 2 monitors. OS Kubuntu 13.04 1 monitor I connected with VGA and it is working fine. But another monitor connected to HDMI port is not detected. I connected ...
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0answers
95 views

Ubuntu doesn't detect an external monitor

I have two monitors. The first one works fine with both my windows and my Ubuntu 15.10 machines. The second one works with my windows machine, but not with my Ubuntu machine. It is outputing a DVI ...
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2answers
61 views

Nvidia 760 GTX 14.04 Driver Install Problem

I know there are lot of posts with similar titles... but I think I've tried about all of them. I can't seem to get nvidia drivers to work. Failure mode. I go through the below steps... After ...
3
votes
2answers
7k views

Turn off laptop display and have monitor

My laptop display has stopped working and is unfixable! Anyway, I got a full HD monitor and plugged that into the HDMI port of the laptop. I have changed the power settings so that I can close the ...
0
votes
1answer
42 views

Ubuntu crashes every time I connect the computer to HDMI

Every time I connect my computer to my TV via HDMI, my computer's screen goes black and Ubuntu crashes. I use Ubuntu 15.10, and my laptop is an ASUS with an Nvidia GeForce 840M graphics card. ...
39
votes
4answers
105k views

Ubuntu refuses to output audio via HDMI

I have my PC hooked up to speakers and a monitor. In addition, it is hooked up to my Vizio 37' LCD Television. When I was on Windows 7, I could choose to output sound via HDMI. I have the choice in ...
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vote
1answer
852 views

hdmi not showing up in xrandr

Everything used to work until recently. Now, whenever I connect my HDMI monitor to my laptop nothing happens. Running xrandr doesn't show the HDMI output. Can anyone help out? I've been trying to fix ...
0
votes
0answers
29 views

HDMI display not detected in nvidia Geforce 9300 GS

I just installed Ubuntu in my Sony Vaio VGN-Z31XN with nVidia GeForce 9300 GS. When i tried to connect it to my Samsung television through the HDMI cable, it seems that the laptop can't seem to ...
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votes
5answers
16k views

Ubuntu desktop slightly too big on HDMI TV

When I connect my Panasonic Viera TV (720p) via HDMI to my notebook the desktop is cut on the TV. I tried different resolutions but no matter which it's always cut on each side... I had the same ...
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vote
0answers
22 views

Ubuntu 14.04 two screens but separately X session

I have a Skylake i7 that has a onboard video card that have VGA, DVI and HDMI outputs. If I connect a monitor to HDMI and one to DVI or VGA only one X display is created ( DISPLAY :0 ). How can I ...
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vote
0answers
12 views

pacmd - udev rule for moving inputs to different sink during playback

newbie here. I want to be able to switch to HDMI audio output by plugging in the HDMI cable during playback. I have followed the advice given here: How to change pulseaudio sink with "pacmd ...
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votes
2answers
5k views

No HDMI audio in 13.04

I have just upgraded from 12.10 to 13.04 and now everything works perfectly, except the fact that I have no audio via HDMI. I am using a Samsung tv-monitor connected via HDMI to my video card Asus ...
0
votes
0answers
29 views

Ubuntu ARandR additional monitor setup

I want to setup my laptop to use 2 additional monitors. One from an HDMI input and one from a VGA input. When I try to configure them with ARandR I get this error message. XRandR failed: XRandR ...
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0answers
28 views

Can not detect right resolution

I got this error in my desktop Could not switch the monitor configuration could not set the configuration for CRTC 95 And every second I run xrandr command it output is different : Screen 0: ...
3
votes
1answer
5k views

How do I output display at 2560x1080? (am trying to add modeline with xrandr)

I'm trying to use xrandr to add a custom resolution for my 2560x1080 AOC monitor. I've been given the VESA timings by the manufacturer (attached), but I'm not sure what I should be doing with them: ...
0
votes
0answers
31 views

HDMI audio works intermittently (15.10)

I'm having trouble with my HDMI audio out. When I have the HDMI cable plugged in, I can see HDMI out as an option in my sound settings, but when I select it, one of a few things happens: the sound ...
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0answers
79 views

Ubuntu 15.10 not detected by Samsung TV via displaport-HDMI

My HP EliteBook 840 does not have a HDMI port but a displayport, so I got an adapter to HDMI. I tried to connect to a Samsung TV (UE-50JU6870) via the adapter and a HDMI cable but it stays on black ...