HDMI (High-Definition Multimedia Interface) is an interface for audio/video transmission between devices, such as computers, and displays.

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Z170-A motherboard HDMI video issue with ubuntu

I purchased Z170-A motherboard PC with on-board HDMI port and i have installed Ubuntu 14.04.4 OS but problem is if i connect Monitor to HDMI port it's not working. but if i put external VGA card it ...
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The window would like the X- represents at the same time in two frame buffers

I'm using the two frame buffer. /dev/fb0: 1024x768 (LCD) /dev/fb1: 1920x1080 (HDMI) I want to be the same content simultaneously on two frame buffer output. Is there any way ?
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25 views

Setting monitor active with HDMI Splitter

I've recently bought a hdmi splitter the splitter is inactive, which means only one screen can be active at a time. It's starting to get frustrating that my tv seems to have a higher priority than ...
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1answer
155 views

Linux mint 17.3 without HDMI sound output

Well, tried everything: alsa, alsa-utils, alsamixer, pulseaudio, puvecontrol and a lot more. Even I changed from ubuntu to Linux mint, but I can't get sound from hdmi (laptop connected to led tv). I ...
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77 views

FBDEV(0): FBIOPUTCMAP: Invalid argument

I am trying to solve a problem with my video output via HDMI, a situation is as follow. I have device (BeagleBone Black) which runs on Debian Jessie 8.2, I developed an application in Qt5 which ...
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81 views

How to fix HDMI in Debian (output not working)?

Randomly my computer's HDMI output (running Debian 8) doesn't output anything to HDMI (my screen says "no signal"). Other times it does. The only thing I can say it is that if it works just after ...
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17 views

How to solve random HDMI (external screen) / audio output issues in Linux Debian 8?

About half of the times I start up my Debian 8 machine sometimes goes wrong in the boot sequence (particularly in auto starting apps set in "autostart" I would say). I can say that because after a ...
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103 views

Audio over HDMI (NVIDIA)

Hi Im using Linux Mint 17.3, my graphics cards are integrated intel and NVidia GT 650M (with HDMI output). Im using nvidia-352 driver. So the problem is that i cant get sound over hdmi working (works ...
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56 views

HDMI TV stick with debian/ubuntu/android with support for Node.JS and Electron

I'm doing a research about available devices to run Electron on embedded device under Linux (debian/ubuntu/android) and I found EZCast. Seller says it is running under Android castrated version so it ...
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1answer
37 views

Display raspberry Pi over linux

I have a raspberry Pi and I want it to display on my monitor. My monitor only supports DVI and the Pi supports only HDMI. I was wondering if there is a way I can connect my raspberry pi, via hdmi, to ...
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1answer
80 views

Is there a way to detect whether a screen is in on/off/standby mode from within Linux?

The screen in question is HDMI. The power off/on action is initiated by clicking on the on-screen capacitive button. I just need to know if there is a way to get events like "now the screen is on", ...
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37 views

strange shutdown behaviour

Usually, when I plug in stuff (mostly hdmi cable) the laptop fails to shutdown. What happens is the following: I unplug everything, I try to shutdown from gui (or terminal), but at the very end of the ...
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2answers
606 views

2560x1440 resolution over HDMI with a laptop with NVIDIA Optimus and Ubuntu 15.10

I attached a new 2560x1440 display (Dell P2416D) with HDMI to my dual-booting laptop (Asus N56VJ) that has NVIDIA's dual-GPU technology. In Windows 8.1 I got the display to run with its native ...
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143 views

xrandr won't recognize HDMI

System Spec OS: Debian 8 Jessie Computer Model: ASUS G46V Laptop Graphics Card: Nvidia Geforce GTX 660M (This only seems to be an issue with my nvidia systems) Current Video Drivers: Nouveau ...
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1answer
194 views

Raspberry pi hdmi audio not working

I have a raspberry pi 2 running with Ubuntu Mate. When I try to play video or audio files with omxplayer, I do not get any sound on my TV which is connected to the Pi via HDMI. If I force the Pi to ...
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1answer
519 views

Ubuntu Forcing HDMI Output on Boot if Monitor disconnected

I have a ubuntu 14.04 server that connects to a A/V Amplifier via HDMI. The problem is, if the amp has a source selected other than the Ubuntu during boot up of the ubuntu m/c, then when the ubu ...
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1answer
13 views

EDID KWorkers Overflow

I'm using the IMX6 Quad from Freescale. I'm implemented a custom Linux on it for a personal homemade project. I've noticed a very stange behavior. Some times, randomly, I've got two KWorkers ...
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1answer
443 views

How do I create an ALSA virtual device that outputs to both HDMI and headphone jack?

I can tell my programs to output to either HDMI or the headphone jack just fine, but is there a way to create a virtual device in asound.conf that outputs to both simultaneously? This config comes ...
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105 views

How to inform Xorg about a resolution I have already set?

I'm trying to get my Banana Pi Pro to switch between 1920x1080 and 1280x720 resolutions on an HDMI screen. Both resolutions work fine if I set them in uEnv.txt: disp.screen0_output_mode=1280x720p60 ...
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1answer
58 views

Change HDMI resolution on-the-fly without GDM

I just disabled the GDM service to use QT programs and mplayer output. And I need to change HDMI output resolution of my Angstrom distro and it should be on-the-fly. That means basically doing this ...
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1answer
132 views

Can ALSA output sound from a motherboard jack input line to HDMI?

I have a machine installed with OpenELEC and I'd like to use the motherboard line input (jack) and redirect sound through the HDMI link. All the other jacks from the motherboard will be unused. I ...
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1answer
298 views

Debian intel + nvidia optimus hdmi output not recognized

I have an Asus N56VM laptop, with optimus graphics (Intel + Nvidia). It's got an HDMI connection, and I do have a monitor connected to it. In Windows, I can have dual monitor, and so can I in Ubuntu, ...
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166 views

Cannot get back signal after reboot using VGA-to-HDMI adapter

I recently bought an VGA to HDMI adapter for a HTPC (has a DisplayPort jack instead of HDMI, which got disabled when I put the TV Tuner in - long story - but VGA jack is still functional). I got it ...
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77 views

HDMI non responsive after boot

I have a QNAP NAS-269G with Ubuntu 12.11 Server installed on it. When I plug a monitor to it via HDMI it shows the entire boot process. Then when the log in prompt should normally show the screen goes ...
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190 views

HDMI plug/unplug external display issues with Laptop

I've got a Samsung laptop (archey reports "AMD E-450 APU with Radeon(tm) HD Graphics") from ca. 2010 that I'm essentially using mainly to run Kodi/XBMC hooked up to a TV via HDMI, running with Manjaro ...
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185 views

HDMI on Nouveau driver is glitchy

I am trying to use HDMI with a nVidia GT525M card with the Nouveau driver. Distro is Ubuntu 15.04 and the monitor works perfectly with the VGA output (by a Mini DisplayPort to VGA adapter) - then I ...
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276 views

How to configure hybrid graphics on Antergos / Arch

I've been having trouble setting up switchable graphics on my laptop (HP ENVY 14). It has an ATI / Intel combo and I'm running Antergos (with Gnome 3 if that matters). I've read on the Arch Wiki that ...
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171 views

Bumblebee, how do I get the TV that's plugged in to my laptop working?

I recently got myself a nice 4k TV and would like to use my laptop with openSUSE 13.2 to watch movies on it. I've read tons of forum posts and tutorials about this, but nothing seems to work. It seems ...
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2answers
2k views

Ubuntu (14.10, 14.04) Graphics rendering issues with nvidia 331, 346 when using two screens at once (built in and external)

I bought a new dell laptop ( inspiron 15 3000 series ) with 2 gb nvidia geforce 117m. It shipped with ubuntu 14.04. That was very choppy and slow. I installed nvidia 346.47 ( from the nvidia website). ...
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1k 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 ...
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199 views

How does the Linux kernel initialize console graphics?

Observation: I switch on a Linux box Boot loader displays its output on screen Boot starts with first output messages Screen goes blank, and never comes back on. Note: this is about the console, ...
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1answer
280 views

It is possible to use a HDMI card with OpenBSD

Is it possble to use a HDMI card with OpenBSD? I have a home server but at the moment I have only a TV with an HDMI entry. I would like to use OpenBSD.
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1answer
855 views

Clone monitor on HDMI without changing laptop display resolution

My laptop's display has native resolution of 1366x768, and I connect it to my TV which has 1920x1080i. My problem is that the only supported resolution for cloning is 640x480, which happens to be the ...
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1answer
7k views

How to fix error 'xrandr: cannot find output “VGA1”'?

I am trying to enable a HDMI connection to a monitor connected with a HDMI cable to my Lenovo laptop using the following commands. > xrandr xrandr: Failed to get size of gamma for output default ...
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10k views

HDMI connection not recognized on Laptop with Ubuntu 14.04

On a Lenovo Laptop with Ubuntu 14.04 I am not able to display the current screen's stuff on a Monitor connected with HDMI. The HDMI cables are both plugged in to the laptop and the monitor, and the ...
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2answers
1k views

Video capture device: any chance of getting raw data?

I have a HDMI capture device called Live Gamer Portable (AverMedia C875 USB - 07ca:0875), and it has drivers for Windows and Mac, but not for Linux. As it has Mac support, is it possible to access raw ...
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1answer
837 views

Intel HDMI monitor not recognized

The problem I've got two graphics cards in my computer: Nvidia GTX 580 Intel Graphics (onboard) The Nvidia part is working fine: plugged in a DVI cable to my monitor and everything works ...
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System doesn't see HDMI attached tv&receiver until reboot

When my system starts and receiver with tv are disabled during boot, then system will not see them even if later I will replug hdmi cable. To make receiver/tv visible to the system, I must leave them ...
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172 views

Use HDMI for audio ouput only

I am looking for a solution that lets me use my HDMI port for audio output without extending my X screen to that output at the same time. Apparently it is problematic to use HDMI for audio only, ...
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446 views

HDMI output not working correctly through xrandr

I'm on Arch Linux. HDMI output works fine with the gnome settings screen. But when I try to set it on a console using xrandr, arandr or lxrandr (xrandr --output HDMI1 --mode 1920x1080) all I get is an ...
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351 views

Disable HDMI Audio Output if it is not plugged in

I am using Fedora 20 on a Dell Precision M3800. When i'm in the office, i wanna use my Bluetooth Headphones. When i'm at home, i'm using often my Sony TV as my second Display(via HDMI). When i'm at ...
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0answers
283 views

Need to Adjust Screen Edge of an HDMI-connected TV

I have a Linux Mint Debian Edition device that I'm connecting to my Sony Bravia TV via HDMI. The resolution of both screens are 1920x1080. But when I connect them via HDMI cable, the PC screen is ...
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1answer
3k views

How can I get 1080p to work on my TV with HDMI using xrandr?

I'm using Arch Linux on a small HTPC called an Xtreamer, which has an Nvidia GT218/ION graphics card and HDMI out. My television is an Orion DL40-71BK (manual, note everything's in Japanese). HDMI ...
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1answer
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How to enable both built-in audio output and HDMI audio output with PulseAudio?

I've been searching for this issue for days now and tried various solutions suggested, without any success. Basically, I have a laptop with built-in audio (the output goes either to the headphone ...
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1answer
829 views

Boot resolution change in initramfs on laptop monitor and HDMI monitor

I have Linux Mint 17 on my laptop. Also I have 22'' monitor connected to laptop using HDMI cable. My disk if fully encrypted with LUKS and LVM. On boot I get graphical prompt to enter password for ...
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Lost control of the windows sent to monitor on HDMI, which xrandr doesn’t detect

I have set two monitors—one is a usual monitor, and the second one is an HDMI TV. The configuration is done in a single xorg.conf file. The problem is that the second display seem to be working, i.e. ...
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1answer
3k views

Setting up HDMI output from Linux console

I am currently running Debian Wheezy on a HP Microserver N54L with an AMD Radeon 5450 video card. I would like to be able to play audio from the console through the HDMI port of my video card and ...
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1answer
303 views

Blurry image between Radeon / DVI-to-HDMI / LG LCD monitor

I've got an ATI Radeon (not sure exact card; forgot to write it down when I left this morning; will update when I get back) and it is connected to an LG IPS237L 23" IPS LED monitor. As you can seen ...
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188 views

HD TV and Macbook Air with Linux see each other but screen is black

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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How do I configure PulseAudio for 7.1 Surround Sound over HDMI?

I have my machine connected over HDMI to a receiver. But when I try to use more than two channels with PulseAudio, I only get two. pacmd list cards shows the card, but does not show an HDMI profile ...