Questions tagged [hdmi]

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

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External monitor not detected on Ubuntu 18.04

After upgrading to Ubuntu 18.04, my laptop has been unable to detect/use an external monitor attached via HDMI. Even when plugged in, the "detect displays" button within the default settings app doesn'...
PullJosh's user avatar
  • 1,311
83 votes
6 answers
290k 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 ...
Michael's user avatar
  • 841
83 votes
14 answers
61k views

Changing the screen brightness of the external screen

I have installed Ubuntu 16.04 LTS on my laptop and connected it to an external monitor via an HDMI cable. I can easily change the brightness of the laptop screen but that does not affect the ...
Ad Infinitum's user avatar
46 votes
16 answers
119k views

HDMI port not detected on Ubuntu 18.04

The HDMI port of my Lenovo IdeaPad 500S with Ubuntu 18.04 LTS is not working. I also executed the xrandr command, but only the primary monitor is detected. How can I solve my problem? How can I check ...
Federico Magliani's user avatar
39 votes
4 answers
50k views

Firefox doesn't play audio

To be clear, the audio on my laptop is working just fine. Other applications in Ubuntu play sounds as expected. Firefox, however, won't output any audio through the native speakers or headphones. ...
Loewen-Samuels's user avatar
37 votes
4 answers
69k views

How can I disable an audio HDMI device?

powertop reports that Intel CougarPoint HDMI is 100% active and there are reports that this device consumes a lot of power. If that is so, I would like to disable it as I never use it. Is there a way ...
webm0nk3y's user avatar
  • 930
34 votes
6 answers
47k views

Static and crackling in my HDMI audio?

So, I managed to dual boot Windows 8.1 and Ubuntu 13.04. In Ubuntu 13.04, I installed the drivers for my graphics card(AMD HD Radeon 7700 Series, I'm pretty sure it's a 7790 one and Intel HD Graphics ...
TehSephirothSpirit's user avatar
33 votes
4 answers
18k views

How do I get the Ubuntu Dock off the secondary monitor?

I updated to Ubuntu 18.04 a few weeks ago with little to no problems until now. After an update I installed and a reboot, my sidebar (Ubuntu dock) shows on the secondary screen, which is my Laptop, ...
WayneNani's user avatar
  • 443
33 votes
9 answers
57k views

No sound on HDMI Ubuntu 20.04

I just installed Ubuntu 20.04 on my laptop which is a bit outdated: CPU: Intel Core i5 CPU M 480 @ 2.67GHz RAM: 4GB Video card: GeForce GT 420M Audio: GF108 High Definition Audio Controller NVIDIA ...
Lucas's user avatar
  • 339
31 votes
6 answers
41k views

How to remove Nvidia HDMI audio output in PulseAudio?

At each reboot, PulseAudio sets a sink (in my case, "HDMI Audio Output") as the default. So, at each reboot, I don't hear any sound, and need to reconfigure the default sink each time to "Analog ...
manatlan's user avatar
  • 413
29 votes
5 answers
26k views

Set HDMI sound output automatically on connect/disconnect

I have a dual screen setup on my laptop (using 12.04 LTS) using a HDMI connected display. Everything works fine, but everytime I connect/disconnect the cable I have to go to Sound preferences and ...
Salem's user avatar
  • 19.7k
28 votes
3 answers
36k views

Ubuntu command line to change input source on a display monitor?

I have two PCs connected to Dell U3415W monitor, one with ubuntu 14.04 LTS OS with HDMI input and other with windows 10 with DP input. What I want to do is toggle between these two input sources ...
Saurabh Verma's user avatar
27 votes
6 answers
74k views

ubuntu 20.04, second monitor on hdmi port not detected

It seems to be a common issue but I could not find a solution. just clean installed Ubuntu 20.04 Desktop and updated it with the "Software & updates" tool. PC:HP ProDesk 400 G4 Desktop-Mini-PC ...
call me Steve's user avatar
27 votes
11 answers
33k 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 ...
Chantz's user avatar
  • 423
25 votes
5 answers
72k views

HDMI is not displayed in the "Sound" settings on Ubuntu 14.04 LTS

I need some assistance, I have 2 laptops, a Toshiba and a DELL XPS M1330, the problem is using my DELL laptop, when I use the HDMI cable to use the TV as monitor the display works fine however the ...
Oso's user avatar
  • 251
23 votes
3 answers
26k views

Amazon Prime videos play, but not in HD, citing HDCP error (HD Videos Unavailable, HDCP)

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.
Jonathan's user avatar
  • 3,884
21 votes
12 answers
104k views

HDMI/VGA connection cuts borders of screen or creates blurry text

Ok this is an extension of another problem I had with a VGA connection and an Nvidia Geforce GT 440 card. The question has been updated to include other problems related to HDMI Video and also since I ...
Luis Alvarado's user avatar
21 votes
1 answer
87k 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 ...
Denny John's user avatar
21 votes
3 answers
15k views

Is it possible to automatically switch to HDMI sound output? 13.04

I've seen a few similar questions however couldn't find a solution and they were all a few years old. When I plug my laptop into the TV HDMI port I have to manually go through the sound options and ...
rocklobster's user avatar
20 votes
2 answers
24k views

Display on HDMI doesn't wake up

I just got myself a beautiful 27" WQHD display. It is connected to HDMI (no VideoPort) and works great showing 2560x1440 @ 60 Hz. There is a problem however. When it goes to sleep/I turn the monitor ...
oᴉɹǝɥɔ's user avatar
20 votes
1 answer
11k views

Switch between internal and HDMI speakers automatically

You know how when you plug headphones into your laptop's aux jack, the internal speakers are automatically muted and the sounds comes out of your headphones? I want exactly that for HDMI. I connect a ...
UTF-8's user avatar
  • 5,700
19 votes
2 answers
21k views

No sound on chrome (Only) after using an HDMI cable

I used a hdmi cable to broadcast some youtube content to my tv (using chrome). I had to change the sound output from "speakers" to "hdmi" to have it on the tv. Now, there is no sound on my computer ...
Karim KARAA's user avatar
18 votes
5 answers
19k views

Sound stopped working after using HDMI

So a couple of days ago, I had my laptop hooked up to my tv via HDMI. I used pavucontrol to disable sound on my laptop and play it through the tv. I changed it back when I was done. Can't remember if ...
Rob Fitz's user avatar
  • 381
18 votes
11 answers
110k views

Installed Lubuntu 16.04 version no audio now

I just installed LUbuntu 16.04 onto my laptop, which is a HP Pavilion G6 series, AMD Processor, and it does have an HDMI port. I can't seem to get audio or any sound at all to come out of my laptop. I ...
JWind's user avatar
  • 183
18 votes
4 answers
14k 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 ...
Grumbel's user avatar
  • 4,719
18 votes
2 answers
30k views

Forcing grub menu to external monitor connected to laptop via HDMI/VGA

Is there any way to force grub menu to show it's content in external monitor (for selecting the os to boot on win or ubuntu), I use my laptop more like a desktop with a monitor connected to it because ...
biozalp's user avatar
  • 635
17 votes
5 answers
26k views

HDMI sound not working after upgrading to 20.04

After upgrading to ubuntu 20.04 the hdmi sound stopped working. If I select headphones as audio output they work well, but if I change to HDMI output it doesn't work. Also I noticed that when I ...
Ricardo Jaimes's user avatar
17 votes
2 answers
27k views

How can I change audio output to HDMI from command line?

Backstory This thread suggests pacmd list-sinks and switching to a different sink with pacmd set-default-sink "SINKNAME", but my laptop only appears to have 1 sink, so that didn't help me. This ...
James Moore's user avatar
17 votes
2 answers
10k views

Disable sound through HDMI permanently

I'm running Ubuntu 10.10 on my laptop using an external monitor. The monitor is connected by a HDMI cable. The external monitor does not have boxes, it does have an audio exit for a headphone/.. . ...
user1254962's user avatar
17 votes
3 answers
2k 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 ...
chazomaticus's user avatar
  • 1,253
16 votes
3 answers
22k 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 ...
yurividal's user avatar
  • 1,772
16 votes
2 answers
10k views

Why can't I set a default output audio device in Ubuntu 19.10?

My laptop with Ubuntu 19.04 detected and set my HDMI output on every boot. But since I upgraded to 19.10, I need to set it manually every boot as follows: From to I already tried every single ...
bwdm's user avatar
  • 282
16 votes
1 answer
81k views

How to connect computer to tv with hdmi?

I am trying to connect my laptop with my tv using an hdmi cable. It has worked with an vga cable, but my problem is that the screen does appear, but it freezes and nothing happens. The screen is also ...
verymessi's user avatar
  • 335
16 votes
3 answers
26k 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: ...
dyagmin's user avatar
  • 321
15 votes
7 answers
65k 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 ...
Tom's user avatar
  • 213
15 votes
5 answers
35k views

How do I get HDMI output working on a Dell XPS 15 L502x?

Recently I've bought my dream's notebook, a Dell XPS 15 but since then this dream became a kind of endless nightmare. I'm almost getting crazy to make my graphic card driver work properly, but it ...
Jones's user avatar
  • 161
15 votes
5 answers
27k views

External HDMI display detected, but not working

I am using Dell XPS 13 9360 with Ubuntu 16.04. It does not have a HDMI slot, so I have a USB-C-to-HDMI adapter, which is then connected to my monitor: DELL S2240L. In System Settings > Displays, I ...
Sanha Cheong's user avatar
14 votes
9 answers
35k views

HDMI recognized as "unplugged", after installing drivers

So I'll start by explaining my situation. I actually have had my current installation for some time now (Though I upgraded from 14.04 to 16.04), and the computer I used is an inexpensive one I bought ...
TUSF's user avatar
  • 191
14 votes
2 answers
19k views

jackd does not work, aplay -l shows two instances of the same card (Ubuntu 13.04, HDMI audio only)

I'm on Ubuntu 13.04, using a ZaReason Zini, which as far as I can tell has no audio output other than its hdmi port. I'm trying to get the Clojure library Overtone working, and ran into the problem ...
Anand's user avatar
  • 391
13 votes
1 answer
7k views

Sony Vaio FW350 reboots instead of waking up after sleep/suspend

After I suspend and try to wake up my laptop it just automatically reboots every time. I had this problem in 11.04, but it happened occasionaly. Now I'm with 11.10 and it occurs every time. It is a ...
Felipe Hummel's user avatar
13 votes
7 answers
55k views

External monitor recognized but getting "no signal"

I'm running 12.10 dual booted with windows 7 (nvidia optimus). I have no idea what might be wrong because: the monitor works on windows it worked on ubuntu for over a year and even now the splash ...
michalwols's user avatar
13 votes
3 answers
27k views

xrandr -- how to find the correct RGB full spectrum output command for my system

I have just hooked up my laptop to an external monitor after a "spillage incident" foobared the built-in display. However, when I connect the monitor via an HDMI cable the colours look extremely ...
Just In Time Berlake's user avatar
13 votes
2 answers
11k views

How to play full screen video on second monitor?

I have two identical monitors, and when playing a full screen video on one of them using the default player or VLC and then working on the other monitor - the top bar and the launcher appear above the ...
Ziv's user avatar
  • 260
13 votes
4 answers
18k views

Auto-switch audio to HDMI when HDMI monitor/receiver plugged into laptop

I have a laptop with an HDMI port. While we're homeless and staying with friends I've been plugging it into their surround sound receiver with an HDMI cable. To get sound working I have to open up the ...
Oli's user avatar
  • 293k
13 votes
1 answer
52k views

Ubuntu does not recognize HDMI port [closed]

I am running Ubuntu (elementary OS) connected to a normal monitor which works fine. I am now trying to connect it to a TV through HDMI port, but the TV is unable get any signal. Please help me out. ...
user283926's user avatar
13 votes
1 answer
4k views

USB-C to HDMI Cable issues in Ubuntu 16.10 and 17.04

I'm trying to use a USB-C to HDMI cable (not adapter) to connect to an external monitor with no luck. The display is detected, can be selected, and displays video but the video is not displayed ...
J. Doe's user avatar
  • 141
13 votes
2 answers
8k views

Missing HDMI audio output(device unplugged), NVidia audio card not detected

My ALSA information is located at: http://www.alsa-project.org/db/?f=85ca372146c77ccef3fd60151d30fb86dd6c2dcf Introduction: I'm running Ubuntu 16.04 with an NVidia chipset 'GeForce GT 525M'. I've ...
Aurora C's user avatar
  • 315
12 votes
7 answers
17k views

Switching to HDMI Audio when HDMI is plugged into a laptop (14.04)

I'm trying to get my laptop to switch the audio to HDMI when it's plugged in, and back to standard analog when it's removed. I set up a udev rule to trigger a script to perform the switching, ...
Kingamajick's user avatar
12 votes
9 answers
13k views

HDMI Audio stops after TV turned off

After the 12.04 Update my HDMI audio stops working anytime I turn off my 2nd monitor(plasma TV). Graphics card is a Radeon 6800 which has DVI out to 1st monitor, HDMI out to receiver which the TV gets ...
Ryan's user avatar
  • 121
12 votes
1 answer
33k views

No sound on HDMI with Radeon driver

My PC has a build-in VT1828S chip. The connection between PC and monitor (which has built-in speakers) is through an HDMI cable. Audio preferences shows 2 devices for audio output: analog stereo and ...
user17741's user avatar
  • 151

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