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

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Linux Ubuntu HDMI screen detected but not showing (GT 525M

After searching every solution possible nothing seems to work for me. WHen i do nvidia-settings it shows the screen detected but i receive no output from the screen. In addition following this HDMI ...
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12 views

Digital audio does not work

I am having problems getting S/PDIF and HDMI audio working on Ubuntu 15.04. The S/PDIF output shows up in "System Settings > Sound", but no sound is outputted. The HDMI output does not show up. I ...
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26 views

ubuntu 14.04 HDMI wrong resolution

I recently purchased a NVIDIA GTX960 and having issue with my secondary monitory connected by hdmi cable ( using HDMI to VGA converter ). The monitor in question is Acer X233H and has resolution of ...
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26 views

HDMI tone output not working with PC audio but with test audio

just at the beginning: I'm not good in using Ubuntu (i've been using it for app. one moth) so please do not give me any unexplained instructions. Please do give me detailed information what i have do ...
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69 views

Thunderbolt Display on non Apple computer

I just got a System76 Galago UltraPro, and I'm trying to hook it up with my Thunderbolt Display A1407. I have tried by using both the Mini DisplayPort from the display to the computer, and a ...
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211 views

Only analog sound device in 15.04, HDMI device was accessible before

as the title suggests I can't choose HDMI audio output anymore, the only available sound device is analog. I could choose HDMI audio output before, but now it is missing.
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61 views

TV started reporting no signal from HDMI Port

After 6 months of using my LG5500 as an external monitor for my Acer Aspire E1-472g laptop connected via the HDMI port, two days ago the TV started responding "No Signal". It is possible that what ...
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13 views

Cannot set up dual monitor on TweinView model

I want to connect an external monitor to my laptop via HDMI, external and built-in monitor are both 1920x1080. However, if I chose to expand screen, the total resolution will be 1920x1080 instead of ...
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81 views

No audio when DVI to HDMI cable is plugged. How to fix this?

I have been using LG TV as monitor with Audio Cable and DVI to HDMI cable I am getting audio when VGA cable is plugged. But when the DVI to HDMI cable is plugged I couldn't get audio (Probably ...
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184 views

4K (3840x2160) with GeForce GT 730M (Notebook Acer v3-571g) on HDMI port not working

I have a notebook Acer v3-571g with a GeForce GT 730M and try to get my new Samsung UHD Monitor 28" "U28D590D" to work in a 4K resolution via HDMI. As I can see on ...
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115 views

No sound in headphones but speakers work fine

I have an ASUS F550C Notebook running Ubuntu 14.04. I connected my PC to a screen via HDMI and the HDMI sound works fine and the computer's speakers work great as well, but when I plug in my ...
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246 views

14.10, 15.04 - HDMI audio not working on Dell Vostro 3750 - nVidia card not detected by aplay -l

Summary: Sound card on nVidia is not detected by ALSA so even though video works on HDMI, no audio plays. It is detected in pci. How can I get ALSA to detect the nVidia card? Output of aplay -l ...
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33 views

HDMI Audio wont work

I have read many things on trying to configure HDMI output on the forums, but none of the solutions have worked for me. I am running an AMD 8350 and ASUS Sabertooth motherboard with Nvidia Gforce 760. ...
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82 views

ubuntu pc connected to tv via onboard hdmi suffers off sync delay when using samsung soundshare

I am still not sure where the problem comes from, so I am asking here and I also sent an email to Samsung asking for support. If anyone can provide me with some pointer on where the problem could ...
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100 views

NVIDIA X Server Settings Not Saving

I have a GT 630 (2GB DDR2 Ram, PCIe16, HDMI, DVI, And VGA) Im running Ubuntu 14.04.2 LTS 64Bit With Gnome Shell. I have the "NVIDIA bianary driver - version 331.113 from nvidia-331 (proprietary, ...
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150 views

No sound through hdmi - ati radeon HD 3470, 12.04 - tried everything

I have Asus Laptop model F6V with Ati Radeon HD 3470 graphics and Ubuntu 12.04.5 LTS (precise pargolin). I have set the the output to HDMI but get no sound. Speakers and headset are ok. I tried ...
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35 views

Screen turns off immediately after X starts

Yesterday I disconnected my HDMI monitor, and connected to another monitor while the system was running. The resolution was now too high for the new monitor (1280x720 monitor was showing the 1920x1080 ...
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39 views

Is it possible to update the sound options after boot?

I run my computers display via HDMI into an AV Receiver which then goes to the screen. I've noticed that if the AV Receiver isn't selected to the computers channel when booting the computer, Ubuntu ...
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352 views

External Monitor: VGA and HDMI Behaving Differently

I'm trying to set up a second monitor. I want the primary screen to be my laptop's built-in display and I want the secondary screen to be the external monitor. I'm running Ubuntu 14.04 with GNOME ...
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147 views

Resize desktop to fit HDTV output

I'm new to Linux and trying to learn to love it. At the moment, I'm using a mid-spec laptop that I connect to a 37" HDTV via an HDMI cable. This setup suits me really well and works (almost) ...
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198 views

HDMI 4K not working with Intel HD

Under Ubuntu 14.04 the maximum resolution provided when my Samsung Series 7 Ultra is connected to a Sony UHD TV, is 1080p. I tried to add various mode lines with different refresh rates and updated to ...
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82 views

Ubuntu showing problems in connecting two external monitor

I am working with Ubuntu 14.04 on Dell E7240. I have connected two external Dell monitors E2211Hb but they both are not working simultaneously. Yesterday both were working fine and after some time one ...
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112 views

HDMI Issue - Can't disconnect from TV/External Display

So here is the situation.. When I first came back to ubuntu (14.04) I experienced a fail at wake from suspention. My Hp Pavilion G4 would turn on as expected but screen would be off (not blank, ...
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108 views

Hybrid Graphics / HDMI Screen redraw Wierdness

I have searched extensively on this problem but have not encountered a work solution yet. Please can someone help? I have HP tm2 2050ea laptop. It has hybrid Intel / AMD graphics. It is caught ...
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194 views

Second screen not disconnecting (HDMI)

I have an HP Pavilion TouchSmart laptop running Ubuntu 14.04.1 I usually connect a second display via HDMI which worked fine until today. I can connect the display fine and everything ...
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295 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 ...
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172 views

Ubuntu 14.04 Second Monitor Not Detected through DVI, but detected through VGA cable

I used to connect a 24" monitor to my laptop, equipped with GeForce410M, through HDMI cable. It sometimes had problems with detecting the monitor, but after a restart it managed to detect. Today the ...
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224 views

Ubuntu 14.04 HDMI UDev Rule

I have tried multiple variations to this script but I cannot get it to work. The UDEV Rule fires the script and the script exectutes but simply does not change the audio profile. If I run the script ...
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109 views

Macbook Pro7,1 Ubuntu 14.04 external monitor

I have a macbook pro7,1 and I have just installed ubuntu 14.04. I try to connect it to an external Asus monitor, using a mini-display(thunderbolt) to HDMI wire. I get an error message saying: ...
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77 views

laptop sees two connections when HD TV is plugged, but no image

With Apple Macbook Air 1,1 (Early 2008) and Ubuntu 12.04 with kernel Linux 3.2.0-68-generic-pae, when I connect it to an HD TV via the micro-DVI to DVI (Apple adapter) --> DVI to HDMI (I tried two ...
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238 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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179 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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350 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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403 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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153 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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778 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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910 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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203 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). ...
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249 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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178 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 ...
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1k views

HDMI video output not working for external monitor

I have installed from scratch ubuntu GNOME 14.04 with gnome-flashback on my old HP HDX 16 laptop (core 2 duo p8600 + nvidia GT9600M + 4GB of ram) and I have problems with the HDMI output (I use it to ...
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249 views

external laptop monitor stays black after screensaver powers it off

I have a Dell XPS 14 with two HDMI outputs and two external monitors. I'm running 12.04, fully updated as of 2014-05-26. Here's what xrandr -q reports: xps% xrandr -q Screen 0: minimum 320 x 200, ...
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487 views

Nvidia HDMI sound and Logitech Headphones not working in 14.04

There is no sound going from the HDMI port on my Nvidia card to my tv that I am using as a monitor. When I use my Logitech Headphones, I hear no sound either. Does anyone know how to rectify the ...
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118 views

Dual External Monitor Bumblebee/Nvidia (or withoout Bumblebee)

I have installed and configured Bumblebee on my Dell XPS 17 with an Nvidia GT555m. I would like to use my two external monitors with the laptop closed, but it's giving me all sorts of difficulty. Is ...
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696 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 ...
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197 views

Ubuntu 13.10 to LG TV via HDMI

I am unable to connect a Ubuntu 13.10 box to a 55 LG LED 1080p 240 HZ smart tv (model #55LAS400) via HDMI. Sometimes I just get a green screen on the TV or other times it won't recognize the TV at ...
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570 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 ...
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211 views

Xubuntu 13.10 (Kernel 3.11.0-18-generic) No HDMI Sound

I am a complete noob to Xubuntu. I have been trying all day to get HDMI audio to work, I have a Radeon HD 6800 using a HDMI to TV and I can not do it at all. It shows up in PulseAudio Volume ...
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69 views

xrandr - LDVS1 detected but doesn't actually exist

I have a PC-Mini with one DVI output -- and nothing else. When I check xrandr I see this: LVDS1 connected (normal left inverted right x axis y axis) 1024x768 60.0 + 800x600 60.3 ...
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63 views

zbox nano ad-10 no HDMI audio 13.10

I am at my wits end. I have spent uncountable number of days following all possible solutions found through Google to no avail. aplay -l provides the following card 0: Generic [HD-Audio Generic], ...