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bayasdev / envycontrol

Easy GPU switching for Nvidia Optimus laptops under Linux
MIT License
1.29k stars 61 forks source link

Refresh rates are not recognized #67

Closed danielrehsmann closed 1 year ago

danielrehsmann commented 2 years ago

On my notebook (with hybrid graphics), when I set the graphics mode to Nvidia, I'm not having the choice of my proper screen-refresh rates. However, if I change the graphic chipset in the BIOS, I am able to use 240Hz.

Adding the screen refresh rates manually over xrandr on X11, as described in (https://wiki.archlinux.org/title/xrandr), gives an error called crtc:0. Manually providing the EDID file, as described here (https://wiki.archlinux.org/title/Kernel_mode_setting#Forcing_modes_and_EDID), does also not help.

I suppose that this issue is related to the intel drivers since intel restricts the refresh rate to 60Hz. I am using Fedora 37 on X11. Any help is much appreciated.

cronyakatsuki commented 2 years ago

This is a limitation of using prime syncronization, for example for me with an amd igu and nvidia dgpu my screen is 60hz but xorg think that its a 90hz screen when in nvidia mode. From what I know its a bug on the nvidia side.