My end goal is to get my desktop running functionally like a high-powered Steam Deck with my HDR monitor. I’m beyond fed up with Microsoft and really want a Linux distro to be the primary OS on my PC (and ultimately the only OS once Ubisoft decides to support R6: Siege on Linux). Eventually I’ll switch from my NVIDIA GPU to AMD since everything I’ve read makes AMD out to be far more consumer and Linux friendly than NVIDIA, but in the time being I’d love some help getting this working on my current hardware.

To get KDE Plasma 6 with HDR running, so far I have tried installing the latest HoloIso and Manjaro’s official Plasma desktop stable branch. Before doing all of the below I made sure that the option to use the iGPU ports was disabled in my BIOS.

For HoloIso, I’ve followed the directions from the GitHub readme file and installed from a USB drive to one of my internal 1 TB SSDs. I’m able to boot from the ISO on the USB drive and run the installation tool in HoloIso. The installation seemingly runs successfully and tells me to restart. After restarting and booting into that drive, I see the GRUB menu which disappears quickly, and then I see nothing but a black screen. I have tried booting with both of my monitors connected to my GPU via DisplayPort, and booting with only one monitor connected to my GPU via DisplayPort. Neither seems to solve the issue.

I then went on to try what seemed like a more stable distro that was similar to SteamOS - Manjaro with Plasma. Installation went smoothly and I was able to actually boot into Manjaro after installation. Noticing there was no HDR option in the display settings I did some Googling and found that I was using X11 and not Wayland (which is where the HDR support lies). I did some more Googling and found a guide to switch to Wayland (I can’t find the guide again now dangit) but upon doing so and restarting, all I saw was a black screen.

Honestly, if anyone has any suggestions for what to try I would love some help. I’m familiar with navigating Linux but relatively unfamiliar with installing it and VERY unfamiliar with display technologies so any suggestions for what to try are appreciated.

  • gerryflap@feddit.nl
    1·
    1 month ago

    I’m on Arch (actually a converted Antergos) and I have an NVIDIA card as well. My first attempt a few months ago was horrible, bricking my system and requiring a bootable USB an a whole evening to get Linux working again.

    My second attempt was recently, and went a lot better. X11 no longer seems to work, so I’m kinda stuck with it, but it feels snappy as long as my second monitor is disconnected. I’ve yet to try some gaming. My main monitor is a VRR 144Hz panel with garbage-tier HDR. The HDR worked out of the box on KDE Plasma, with the same shitty quality as on Windows, so I immediately turned it off again. When my second monitor is connected I get terrible hitching. Every second or so the screen just freezes for hundreds of milliseconds. Something about it (1280x1024, 75Hz, DVI) must not make Wayland happy. No settings seem to change anything, only physically disconnecting the monitor seems to work.