Arch Linux

JustStayingPositive

Member

Registered: 2024-12-20

Posts: 4

[SOLVED] HDMI port detected but no longer outputting

This seems to be a problem people have had before, however I've had no luck in applying past solutions to my situation. I have done as much reading as I can understand, and will continue to do so when provided/requested. I will also provide as much information as possible at all given opportunities. As a note, anything that must be run with sudo will just include the command, as I feel it is mostly assumed such actions are required or I would have been stopped in my tracks.

As a quick overview of my laptop, it is an ASUS brand with an AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx for the CPU/Integrated Graphics, and an Nvidia GeForce GTX 1650 Mobile for the GPU. The HDMI port is connected to a Vizio E470i_A0 TV. I'm using KDE Plasma and sddm.

The TV was working when I initially installed Arch yesterday with KDE Plasma, and I noticed it stopped working while I was trying different Desktop Environments (XFCE, LXQt, MATE, a few others) with lightdm as the display manager. I had uninstalled KDE Plasma and sddm with 'pacman -Rs plasma kde-applications sddm', and was doing the same for each DE I was testing and lightdm before installing the next. I unfortunately did not notice the exact point in the process that it stopped working, and I did not prioritize it at the time. I've tried reinstalling my drivers several times, using a custom/manual xrandr setup, adding `nvidia_drm.modeset=1` to the startup (GRUB? Kernel? I can't recall the exact term, comes up with `cat /proc/cmdline`). I even completely reinstalled Arch earlier. The TV, though blank, did seem to receive output during the live environment, though is now showing "No Signal" after the installation was complete.

Here are multiple outputs/contents of different (hopefully helpful) commands/files:

inix -Faz: https://jsp.rip/VmRxn

uname -r: 6.12.4-zen1-1-zen

cat /var/log/Xorg.0.log: https://jsp.rip/WgxOW
    | grep -i hdmi: https://jsp.rip/QVCYC

dmesg: https://jsp.rip/ZbgYw
    | grep -i hdmi: https://jsp.rip/ZYXYG

xrandr: https://jsp.rip/YSg1G

journalctl: https://jsp.rip/ERlkI
    -f: https://jsp.rip/mji8x (HDMI cable removed and inserted before opening system settings, no entries)
    -b: https://jsp.rip/RSqRS
    -b -1: https://jsp.rip/4ERUK
    | grep xorg: https://jsp.rip/souK5
    | grep nvidia / | grep amdgpu / | grep hdmi: No entries

pacman -Qs nvidia: https://jsp.rip/gclTg

pacman -Qs nouveau / pacman -Qs xf86-video-nouveau: No output

lspci: https://jsp.rip/Bl8IS
    | grep -i vga: https://jsp.rip/IeQ7R

lscpu: https://jsp.rip/oSbUw

I hope that this isn't seen as overwhelming or excessive amounts of information, I'm simply hoping it might assist in reaching a conclusion quickly. Anything else that is requested I will provide asap, and I will learn as much as I can. Thank you in advance

Last edited by JustStayingPositive (2024-12-23 17:30:53)

JustStayingPositive

Member

Registered: 2024-12-20

Posts: 4

Re: [SOLVED] HDMI port detected but no longer outputting

As an update, I've just gotten the opportunity to try both a different HDMI cord and a different TV, and I am experiencing the same lack of output.

corpest

Member

Registered: 2024-12-21

Posts: 10

Re: [SOLVED] HDMI port detected but no longer outputting

Try running

xrandr

to see if you're tv is listed.

if its listed but not running just run it

xrandr --output HDMI-1 --auto

Otherwise, just check if you have the correct drivers; I will just assume you're on Nvidia.

pacman -Qs nvidia

If you do not have Nvidia utils then

sudo pacman -S nvidia nvidia-utils

---

It requires more courage to suffer than to die.

JustStayingPositive

Member

Registered: 2024-12-20

Posts: 4

Re: [SOLVED] HDMI port detected but no longer outputting

Having tried these solutions, it still does not output to my TV. xrandr does not recognize anything being connected (as seen in my initial post), and even after uninstalling (pacman -Rs), rebooting, and reinstalling nvidia and nvidia-utils, and rebooting once more, there is still no output.

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,726

Re: [SOLVED] HDMI port detected but no longer outputting

You're running the zen kernel, the 'nvidia' package isn't going to work. See the nvidia wiki page.

JustStayingPositive

Member

Registered: 2024-12-20

Posts: 4

Re: [SOLVED] HDMI port detected but no longer outputting

Well... rather anticlimactic lol

Having booted with the default Linux kernel, it works without flaw. Thank you so much, I'll update the post title and keep it in mind to check for kernel specific issues in the future.

Last edited by JustStayingPositive (2024-12-23 17:31:04)