Arch Linux

RCheese

Member

Registered: 2023-12-10

Posts: 7

GNOME Wayland and HiDPI HFR Display

Hello everyone I am using GNOME, Wayland and AMD GPU drivers on my system along with Radeon RX 7900 GTX and Samsung Odyssey Neo 57" G95NC S57CG952NI monitor. The modes of the resolution and refresh rate I need are not available in the settings. The monitor supports 7860x2160+ 240Hz + 10bit, but only 7860x2160+ 60Hz are available to me. In order for this to work on Windows, I need to set the DisplayPort 2.1 and UHBR 13.5 operating mode in Adrenalin Software from AMD, how can I do this on ArchLinux?

Head_on_a_Stick

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From: The Wirral

Registered: 2014-02-20

Posts: 9,003

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Re: GNOME Wayland and HiDPI HFR Display

Can we see

lspci -knn -d ::03xx

Check the GNOME logs to see what's happening when the desktop starts up. Share them here if you can't make sense of them.

That card is pretty new and we've already had some threads about it. Kernel 6.7 has some big amdgpu fixes so you could try the RC version to see if that helps.

https://aur.archlinux.org/packages/linux-mainline

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Jin, Jîyan, Azadî

RCheese

Member

Registered: 2023-12-10

Posts: 7

Re: GNOME Wayland and HiDPI HFR Display

Can we see

lspci -knn -d ::03xx

Check the GNOME logs to see what's happening when the desktop starts up. Share them here if you can't make sense of them.

That card is pretty new and we've already had some threads about it. Kernel 6.7 has some big amdgpu fixes so you could try the RC version to see if that helps.

https://aur.archlinux.org/packages/linux-mainline

lspci -knn -d ::03xx

03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900 XTX] [1002:744c] (rev c8)
	Subsystem: ASRock Incorporation Navi 31 [Radeon RX 7900 XT/7900 XTX] [1849:5301]
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu
6d:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev c1)
	Subsystem: ASUSTeK Computer Inc. Raphael [1043:8877]
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

Could you specify what I need to check in Logs?

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: GNOME Wayland and HiDPI HFR Display

Anything to do with amdgpu and/or your graphics cards. Probably best to just share your logs here.

This command will upload the current journal to a pastebin site and return a URL you can post:

journalctl | curl -F 'file=@-' 0x0.st

Run the journalctl command as root unless your user is in the systemd-journal group.

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Jin, Jîyan, Azadî

RCheese

Member

Registered: 2023-12-10

Posts: 7

Re: GNOME Wayland and HiDPI HFR Display

http://0x0.st/H3W5.txt

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: GNOME Wayland and HiDPI HFR Display

My guess here is that the desktop is using the iGPU, which won't be able to provide the full resolution, refresh rate and bit depth. EDIT: or maybe not:

Dec 10 21:42:23 rch-pc gnome-shell[16747]: Boot VGA GPU /dev/dri/card1 selected as primary

Can you disable the iGPU in the firmware ("BIOS") options and force the discrete card? Power usage would increase significantly but so would performance.

Otherwise see https://wiki.archlinux.org/title/PRIME.

Last edited by Head_on_a_Stick (2023-12-10 20:23:22)

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Jin, Jîyan, Azadî

RCheese

Member

Registered: 2023-12-10

Posts: 7

Re: GNOME Wayland and HiDPI HFR Display

I use only discrete graphics, no effect

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: GNOME Wayland and HiDPI HFR Display

So does the 6.7 RC kernel improve things? I've only ever used laptops so I'm scrabbling around in the dark somewhat here. Sorry.

Perhaps if you wait a bit somebody with more experience will be able to offer better assistance.

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Jin, Jîyan, Azadî

RCheese

Member

Registered: 2023-12-10

Posts: 7

Re: GNOME Wayland and HiDPI HFR Display

So does the 6.7 RC kernel improve things? I've only ever used laptops so I'm scrabbling around in the dark somewhat here. Sorry.

Perhaps if you wait a bit somebody with more experience will be able to offer better assistance.

Sorry for offtop, I trying install mainline but I can't

 -> ABAF11C65A2970B130ABE3C479BE3E4300411886, required by: linux-mainline
:: Import? [Y/n] 
:: Importing keys with gpg...
gpg: keyserver receive failed: No data

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: GNOME Wayland and HiDPI HFR Display

Can you not just build it locally? Shouldn't take long with that hardware

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Jin, Jîyan, Azadî