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

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Automatic logouts on startup 16.04

Just installed 16.04 two days ago and it is giving me some very annoying problems on start up. Every time Ubuntu starts, a logout is triggered by closing any window for the first time, either through ...
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30 views

Huge elements on secondary monitor with lower resolution

Ubuntu 16.04 installed on ASUS UX305 ultrabook with QHD resolution (3200x1800) of built-in display. Connecting secondary monitor Dell 24" with 1920x1200 resolution over HDMI I am getting huge control ...
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21 views

Using HDMI input port

I have a dell inspiron aio running ubuntu 15.10 and it has a hdmi input port. I was planning to connect my chromecast to it (via hdmi) then casting my phone's screen to it or to just connect a set top ...
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133 views

HDMI-VGA issues in 16.04

noob here: Lenovo ideapad 100 running ubuntu 16.04 won't support HDMI-VGA cable. Same cable works well on windows, so I suspect it's driver related. Any suggestions?
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15 views

No HDMI sound output - nexus 7 ubuntu touch multirom

I have Ubuntu touch stable channel on my nexus 7 using multirom. If I boot into Android, sound works fine over HDMI. But booting into Ubuntu, sound doesn't come out. Does anyone know if this is a ...
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45 views

Using HDMI/DisplayPort audio does not work via docking station

I have a Dell Latitude combined with a docking station. On Ubuntu 14.04 LTS I was able to choose a HDMI/DisplayPort device in the sound settings playing the sound via the monitor speakers. After ...
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0answers
41 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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31 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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258 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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31 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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31 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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67 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
21 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
53 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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2answers
110 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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1answer
167 views

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 ...
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1answer
2k 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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408 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
45 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
485 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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1answer
108 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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1answer
109 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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276 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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1answer
173 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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36 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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33 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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50 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 ...
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1answer
88 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 rebooting,...
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134 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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1answer
97 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 ...
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2answers
86 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 ...
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1answer
68 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. ...
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0answers
40 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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0answers
29 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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0answers
37 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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30 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: ...
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0answers
120 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 ...
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0answers
70 views

Cannot use --transform nor --scale to fix overscan of TV HDMI on laptop

My TV doesn't have an option to fix the over-scan. Using windows I can fix it by setting the Intel's Screen config to shrink until I fit the display into screen, so theoretically it must be possible ...
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0answers
26 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 set-...
0
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0answers
35 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
113 views

HDMI problem with Dell Laptop with Radeon HD 8670A/8670M/8690M / R5 M330 graphics

I'm facing some problems in connecting external displays via HDMI cable to my Dell Inspiron 17 5759 running Ubuntu 15.10. The Display controller is 01:00.0 Display controller: Advanced Micro Devices,...
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0answers
60 views

Ubuntu 14.04 Suddenly stopped detecting HDMI monitor (Integrated graphics)

I usually have my laptop connected to a second monitor via HDMI, and for the past few months that has never been an issue. I'm using a Dell Inspiron 15R with Intel i7 and no dedicated graphics. ...
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votes
0answers
73 views

Ubuntu 15.10, nvidia GTX760M

I'm using an ASUS ROG laptop with a screen resolution of 1920x1080 and for most of the time it works ok, small glitches barely visible. Recently I've bough a 4K monitor and I use it through the HDMI ...
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0answers
39 views

No Display (HDMI)

This is what happens: When I boot from a live USB (Xubuntu), I get the display of 1024x768 with no sound but still I atleast get a display. When I boot from the main hard-disk, I do not ALWAYS get ...
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0answers
143 views

No sound using Displayport to HDMI connected to TV Ubuntu 14.04

I am using Ubuntu 14.04 on a desktop connected to a TV HDMI input using Displayport as an output from the PC. The problem is that I don't have sound. Even when I tried to change the sound hardware I ...
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0answers
58 views

Multi-screen display

I have a Dell XPS L502x running Ubuntu 14.04.1 and nvidia GT504m. Im trying to connect 2 monitors to the laptop, one via the hdmi connection and the other using the mini-display port. Connecting a ...
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0answers
24 views

TV losts video signal over hdmi

I have a pc connected to a TV via hdmi. After I have turned off TV and then turn it on again it tells me there is no signal. To solve this I restart X and then everything is fine. What can I do to rid ...
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votes
1answer
19 views

Fonts not showing with ubuntu studio 14.04.4 and LCD TV, can you help me?

I'm using an LCD TV as monitor and ubuntu Studio 14.04.4; can't see fonts properly and most of the tweaks and tricks haven't worked so far. I have a geforce gtx 750 ti and using the HDMI cable. I've ...
0
votes
1answer
31 views

Kubuntu 14.04 hdmi sound goes out after apt-get upgrade

From the command line, I just ran an apt-get update and then an apt-get upgrade on my system, with Kubuntu 14.04. My hardware is: intel-nuc (next unit of computuing) i3 processor. Connected to a ...
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1answer
4k views

Gnome: Video drivers on Dell XPS 9550 with 4K UHD screen

This laptop has an i7 processor and a discrete Nvidia GTX 960M card. I'm trying to run Gnome Shell. Has anyone got this working really well? And if so, how? My research/trials on Ubuntu Gnome 16.04, ...