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

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5
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2k views

External display suddenly not detected

I have a Lenovo IdeaPad U410 running Ubuntu Desktop 13.04. I have an external monitor that I connect to via HDMI, and it's worked flawlessly for six months. I plug in my laptop, it detects the ...
5
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0answers
646 views

Sony Bravia Unsupported Signal After Turning Off Display

Installed 12.04 over a previous hackintosh build a couple days ago and trying to iron out all the kinks. The most frustrating right now is my HDTV output through HDMI to a Sony Bravia KDL-40BX421. ...
4
votes
0answers
1k views

monitor hdmi not working

I can not use the external monitor hdmi. I just installed ubuntu 12.04 and my configuration is as follows: $> lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core ...
3
votes
0answers
43 views

No HDMI sound on Nvidia card on Ubuntu but no problem winth windows

Tested Mint 17,ubuntu 14LTS,kubuntu 16LTS,currently on ubuntu 16LTS. Nvidia driver installed. Checked alsamixer for muted device & unmuted them. pavucontrol shows all HDMI output unplugged. In ...
3
votes
0answers
163 views

Multiple problems after connecting and disconnecting to external display via HDMI

I'm running Ubuntu 14.04 on an ASUS A53S laptop. I connected to a tv via HDMI and everything worked fine. Then I disconnected the HDMI cable and shut off the computer. When I restarted the computer, I ...
3
votes
0answers
272 views

Behavior when connecting a laptop to an HDMI screen

I have a three year old Dell Vostro 3750 (Nvidia Optimus) which I am fairly happy with. Since I will use the computer much more in the future, I would like to use it with an external monitor. I have ...
3
votes
0answers
488 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 ...
3
votes
0answers
571 views

Pulseaudio fails to run after disconnecting HDMI cable

After using a HDMI cable I lose the ability to control sound setting. The sound still works (I can play music or even watch videos and listen to them), but the speaker indicator is gone and I cannot ...
3
votes
0answers
420 views

xrandr does not show hdmi

I'm trying to connect my DELL INSPIRON N5110(Ubuntu 13.04) to SAMSUNG S24C350H Monitor via HDMI. When i plug my cable to laptop and to the monitor nothing happened. I tried System Settings -> ...
3
votes
0answers
307 views

How to get ubuntu to associate Nvidia graphics with hdmi port?

I am relatively new to ubuntu and I am having problems with my hdmi port. My laptop is an Asus N56VM with hybrid graphics: Intel HD 4000 (intergrated) and Nvidia GeForce GT 630M 2gb. I have a ...
3
votes
0answers
360 views

HDMI audio not working on hybrid graphics

I have an HP Pavilion dv6 laptop with Intel Sandybridge HD3000 / Ati Radeon 6490M switchable graphics. I am not very experienced in Ubuntu or Linux in general but I have installed 13.04 64bit, because ...
3
votes
0answers
2k views

Getting DVI to work through Lenovo USB Port Replicator in 12.10: Instability and getting it to use xorg.conf file

Setup: Computer is a Lenovo Thinkpad SL500 using the USB Port Replicator running LiveCD for Ubuntu 12.10. Computer has USB attachment to port replicator. Port replicator has DVI to HDMI convertor ...
3
votes
0answers
649 views

How can I reduce overscan in 1080p with AMD HD 6xxx - Ubuntu 12.10 over HDMI

My TV and/or receiver do not have native scaling options, nor would that be feasible. Installation of ANY Catalyst drivers (12.9, 12.10, and 12.11 beta) do not seem to work with Ubuntu 12.10 (...
3
votes
0answers
1k views

nvidia GT630M with HDMI second monitor

I am unable to use double screen with HDMI (works with VGA however) on my ASUS laptop with nvidia 630M I tried downloading the newest nvidia driver, however I cannot make it work properly and my ...
3
votes
0answers
1k views

Ubuntu 12.04 Freezes after removing the HDMI cable or changing settings

I'm using an fresh install of Ubuntu 12.04 and I'm having some problems with HDMI. I usually use it with my TV, but since the update isn't working any more. Sometimes in 11.10 I had to execute a ...
2
votes
0answers
48 views

HDMI1 is disconnected

I'm trying to get a secondary monitor working with my laptop. I'm running Ubuntu 16.04 LTS. I have Windows 10 installed on the same laptop and it works in Windows 10. Currently xrandr -q outputs: ...
2
votes
0answers
65 views

no hdmi video after suspend on intel NUC6i7KYK

I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI. When it wakes up from suspend (S3), it never wakes up the display. The ...
2
votes
0answers
37 views

Ubuntu stuck when load with connected external monitor

I have Dell XPS 15, and when I load the system with connected external monitor by HDMI, the system gets stuck on the login screen. I use Nvidia-361 driver with Bumblebee. The laptop has a 4k screen ...
2
votes
0answers
332 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 ...
2
votes
0answers
81 views

Digital Stereo (HDMI) Output (unplugged) - NVidia GTX 970

I have a problem with audio through HDMI. My display is connected via HDMI cable but Audio doesn't work. HDMI audio output is not visible in default ubuntu sound settings. After installation of ...
2
votes
0answers
256 views

How to disable monitor auto configuration?

Im running Ubuntu 16.04 (dev branch), XFCE as desktop environment. My computer is connected to two monitors. One via regular VGA cable and the other is connected to a HDMI Switcher. That setup works ...
2
votes
0answers
344 views

Amazon Prime videos play, but not in HD, citing HDCP error

On Windows it works fine with this setup, so it's an Ubuntu issue. I am running HDCP capable HDMI cables to an HDCP capable TV as a dual monitor from an HDCP capable graphics card.
2
votes
0answers
226 views

Secondary screen rotation unavailable in Xubuntu

I have a laptop with Xubuntu 15.04. I want to use my old Samsung full-hd TV as a secondary portrait monitor. I connected it using HDMI and it works, but in Settings > Screen there's no option in the ...
2
votes
0answers
32 views

Remember which audio device to use for which application?

I have a Python program which uses OpenAL for audio. I'd like the audio coming from that program to be heard from HDMI speakers, not built-in speakers. I can use Pavucontrol (Pulseaudio GUI) to ...
2
votes
0answers
132 views

Custom dual screen configuration buggy

Using Ubuntu's system settings to configure two screens (desktop monitor and TV via HDMI in my case) is not ergonomic. Hence I decided to code a handy switcher script which lets me choose between ...
2
votes
0answers
75 views

Audio through iec958 super quiet

I've tried a lot of things I can find, but nothing helps. Problem in Ubuntu 14.04: Audio plays fine through HDMI, but not through s/pdif. When I unlock and raise the left front or right front volume,...
2
votes
0answers
275 views

Random Missing Characters on Unbuntu + Unity + External Display

Every time I try to use an external display with my HDMI port I'm having random missing characters on the applications and menus like this: Video card on my system: 00:02.0 VGA compatible ...
2
votes
0answers
39 views

Suspend automatically when no monitor is attached

I use one HDMI cable for both the PC and the PS, and if I plug out the HDMI cable of the suspended PC, Ubuntu resumes. Is there a way to suspend Ubuntu automatically if no HDMI cable is plugged in?
2
votes
0answers
363 views

HDMI Audio Card Not Recognized in Ubuntu 14.10. How to fix?

I have an issue similar to this but no solution I can find anywhere has been any help. Ubuntu refuses to output audio via HDMI Anyone have any suggestions This exactly: I have my PC hooked up ...
2
votes
0answers
668 views

xrandr lists audio (over HDMI) but aplay doesn't

I'm on 14.04 and trying to get sound over displayport -> HDMI -> TV on my Dell Optiplex 780 with Intel GMA4500 graphics. The issue is not (yet) displayport -> HDMI which seems to be adapter dependent ...
2
votes
0answers
758 views

No option for 5.1 Surround through HDMI even with successful speaker-test

I recently set up a new HTPC on Ubuntu 14.04 LTS and the only option for audio (that works) is HDMI / DisplayPort but there is no dropdown box for 5.1 surround sound. I did a lot of digging and after ...
2
votes
0answers
307 views

How to: External Monitor (HDMI)

I'm on a Dell xps l502x 64 dual boot machine. It worked on both, but I had a accident: the screen cracked, so after that I tried to use an external HDMI display as primary display. Now it only works ...
2
votes
0answers
265 views

Crackling sound on HDMI ATI HD7790 Ubuntu 14.04

I am new on Linux but I try to start use, however this if my first big problem. On my card I am not able to use HDMI for sound. I have crackling sound. This is info about my hardware: 1) By typing ...
2
votes
0answers
455 views

No HDMI video output from GeForce GT 330M - Ubuntu 14.04 LTS

I have a Dell Vostro with an Nvidia graphics card. Although the VGA output works fine, when I connect up a monitor on the HDMI output, Ubuntu (14.04 LTS) recognises it, but the screen is blank (no ...
2
votes
0answers
561 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 ...
2
votes
0answers
305 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
votes
0answers
886 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. ...
2
votes
0answers
685 views

Asus pa279q 2560x1440 resolution nvidia hdmi

This thread is covered in many posts here, but in the end none of them were useful to solve my issue. As the title says i d like to reach the full resolution on my 27inch monitor using an nvidia ...
2
votes
0answers
983 views

HDMI / DisplayPort audio at wrong bitrate (audio too high and fast

I am trying to play audio from an Ubuntu 14.04 Dell Precision M3800 through a Dell U2414H monitor; the monitor has HDMI and DisplayPort connectivity and has an audio out feature; it can supply ...
2
votes
0answers
815 views

Detecting HDMI wiring

I have been trying to get HDMI output to work on my laptop which has Intel HD 4600 and NVidia K2100M for graphics managed by bumblebee. 00:02.0 VGA compatible controller: Intel Corporation 4th Gen ...
2
votes
0answers
456 views

13.10 No Dolby Digital or DTS passthrough with XMBC

I am new Ubuntu User trying to get my feet wet as I am an avid windows user especially in my job. I have a Lenovo H520s with the Intel G640 processor and built in audio. I am having a problem with ...
2
votes
0answers
213 views

HDMI connection disappeared

I'm using a Toshiba laptop running Ubuntu 12.04 on an Intel graphics controller, connected to a Philips monitor through HDMI. One fine day, the connection (let alone the monitor) via HDMI simply ...
2
votes
0answers
261 views

How do I lock my AMD overscan to 0% with HDMI?

I use an external monitor with my laptop, connected over HDMI. Every time I boot, the viewable area in the monitor is always reduced. Running the AMD Catalyst Control Centre and setting my display to ...
2
votes
0answers
212 views

How to fix: too short external monitor's resolution after HDMI reconnect until reboot?

I am working on a notebook with external monitor via HDMI and experiencing the same problem each day - in one specific case the external monitor's resolution is not set correctly - gets 1600x1200 ...
2
votes
0answers
2k views

Keep External HDMI Monitor ON

I am running XBMC (Frodo) on an Asus U47A laptop (Intel Sandybridge graphics) with Ubuntu 12.04. The laptop is connected to an older Phillips 27" tube HDTV via HDMI. What I would like is for XBMC to ...
2
votes
0answers
395 views

No HDMI output decteded

I'm running Ubuntu 13.10 and trying to connect to my TV using the HDMI port on my computer. But nothing happens when I plug it in, and clicking on Detect Displays in the display settings does nothing. ...
2
votes
0answers
316 views

How can I force primary display output after turning off monitor?

I have a single HDTV attached to a single video card by two connections - VGA and HDMI through a receiver. HDMI is preferential for convenience. I only need VGA occasionally as it matches the native ...
2
votes
0answers
417 views

No HDMI sound with Intel

I've a problem which bothers me for days: The audio output via HDMI does not work anymore since I updated to Ubuntu 13.04 (it worked perfect with ubuntu 12). A few datas: **cat /proc/version** ...
2
votes
0answers
1k views

ATI Radeon 5770 with ViewSonic VX2835wm 28” HDMI / DVI underscan issues

Turns out this is called overscan / underscan problem. Test image for 1920x1200 so getting closer but still not perfect, with 3.9.0-030900-generic kernel xrandr --output HDMI-0 --set underscan ...
2
votes
0answers
497 views

HDMI with opensource drivers (radeon)

My system (E45M1-I Deluxe with AMD onboard graphics with 4GB RAM) running Ubuntu 12.04. My problem is I have no HDMI sound if using the opensource drivers instead of fglrx. I tried: to remove and ...