r/SteamOS • u/Ricepuddings • 15h ago

SteamOS Update Steamos 3.8.28

Has anyone noticed if there has been an improvement to performance on this update?

Says the Mesa driver got updated but I cannot see any difference on a 9070XT

Also did they do the proper hdmi 2.1 yet as again cannot see any new resolutions or changes

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u/Adrian97c 15h ago

I’m on 3.9.x & there is NO hdmi in sight.

3

u/SeantheWilson 13h ago edited 12h ago

It isn’t enabled by default, it will be enabled by default in Linux 7.4 after AMD finished their VRR patches, if you want you can manually enable it on SteamOS right now though.

Edit: To do this on SteamOS, go to desktop mode, and edit the file /etc/default/grub. This will have a line that says GRUB_CMDLINE_LINUX_DEFAULT=“”. In the quotes, add “amdgpu.dcfeaturemask=0x400”.
Finally, enter “sudo grub-mkconfig -o /boot/grub/grub.cfg” in the terminal and reboot.

2

u/christofos 13h ago

How do you do that?