Unable to Connect to Monitor/TV via HDMI After Updating System

Qhapaq Qowi · 2022-08-12 18:56:56

Hey all,
As the title states, yesterday, I just realized that I lost the ability to connect to a monitor/TV using my laptop's HDMI port. I think this may be due to updating my system the day before. I read of people having issues with Nvidia cards, but I'm using Intel hardware. I also realized that I don't have a xorg.conf, but also read that it is no longer necessary (though I'm not sure how true this is). I'll attach my xrandr and lspci output below. Please let me know if I can provide any more information! If anyone has pointers, I'd really appreciate it!

xrandr:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm
1920x1080 60.01*+ 59.93
1680x1050 59.95 59.88
1400x1050 59.98
1600x900 60.00 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1368x768 60.00 59.88 59.85
1280x800 59.81 59.91
1280x720 59.86 60.00 59.74
1024x768 60.00
1024x576 60.00 59.90 59.82
960x540 60.00 59.63 59.82
800x600 60.32 56.25
864x486 60.00 59.92 59.57
640x480 59.94
720x405 59.51 60.00 58.99
640x360 59.84 59.32 60.00
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

lspci:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise Point-LP Integrated Sensor Hub (rev 21)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point LPC Controller/eSPI Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)

Last edited by Qhapaq Qowi (2022-08-12 18:59:28)

seth · 2022-08-12 19:45:35

Does it work w/ the LTS kernel, is there an EDID in /sys/class/drm/card0-HDMI1/edid and last but not least: did you try a different cable?
Also you should check the cable and whether the cable is properly seated on either end.
Did I mention the cable?

Qhapaq Qowi · 2022-08-12 20:56:07

Thanks for the quick response!

Does it work w/ the LTS kernel

I actually don't have much experience using the LTS Kernel, so I have not yet tried that. Would you have any links?

is there an EDID in /sys/class/drm/card0-HDMI1/edid

There is an edid at /sys/class/drm/card0-HDMI-A-1, but it is completely empty.

Did I mention the cable?

So the cable works fine on someone else's computer. I've tested it with mine while it's been well in place and all. Interestingly, though, I booted into my Windows partition and the HDMI did not work there either. So maybe it's possible that some piece of hardware in my machine got messed up along the way? Thinking back, there was a bizarre incident a few weeks ago, where I was streaming a match with an HDMI connected to the TV and as soon as I plugged my laptop into the surge protector (that the TV and also the cable box were plugged into) to charge, both the TV and the cable box died instantaneously. The cards fried and had to be replaced to get it working again... So possibly some of my hardware got rekt when that fiasco happened haha.

Last edited by Qhapaq Qowi (2022-08-12 20:56:24)

seth · 2022-08-13 06:04:30

I actually don't have much experience using the LTS Kernel, so I have not yet tried that. Would you have any links?

https://archlinux.org/packages/core/x86_64/linux-lts/
You install that, optionally nvidia-lts as well, and select it at your bootloader. Done.

So the cable works fine on someone else's computer.

Ideally try a different one on this computer and also try to boot the system w/ teh cable attached.

I booted into my Windows partition

3rd link below.

The cards fried and had to be replaced to get it working again... So possibly some of my hardware got rekt when that fiasco happened haha.

"Haha" … yeah. Sounds like you somehow created a short circuit.

For anecdotal purposes: 3 years ago a flash hit nearby, leaked through the TV cable, fried the TV and the HDMI chip in the attached receiver.
The Tv lived on for a couple of days (but HDMI was broken) and the receiver was perfectly fine (audio, network, …) with the exception of the HDMI chip.

So this isn't all that unrealistic and w/ the windows situation and if you can rule out the cable also likely what happened.

Qhapaq Qowi · 2022-08-14 19:09:21

Unfortunately, I don't have another HDMI cable nearby, but if I'm able to buy one somewhere, I will definitely give it a go!

In the meantime, I will assume that the HDMI part of my hardware is rekt... Especially with Windows not working, it's a big red flag. I did also try rebooting with the laptop already plugged into the monitor, but that also didn't work.
Thanks for the help!

pal_bjartan · 2022-11-13 12:26:51

Hi, did you find a solution to this problem yet?

Arch Linux

#1 2022-08-12 18:56:56

Unable to Connect to Monitor/TV via HDMI After Updating System

#2 2022-08-12 19:45:35

Re: Unable to Connect to Monitor/TV via HDMI After Updating System

#3 2022-08-12 20:56:07

Re: Unable to Connect to Monitor/TV via HDMI After Updating System

#4 2022-08-13 06:04:30

Re: Unable to Connect to Monitor/TV via HDMI After Updating System

#5 2022-08-14 19:09:21

Re: Unable to Connect to Monitor/TV via HDMI After Updating System

#6 2022-11-13 12:26:51

Re: Unable to Connect to Monitor/TV via HDMI After Updating System

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