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bayasdev / envycontrol

Easy GPU switching for Nvidia Optimus laptops under Linux
MIT License
1.22k stars 62 forks source link

Envycontrol doesn't remove iGPU when set to nvidia #40

Closed DaVikingMan closed 2 years ago

DaVikingMan commented 2 years ago

Envycontrol doesn't remove the integrated gpu when it's set to nvidia mode. This can be seen in vulkaninfo(which still has intel gpu registered) and also in neofetch output. This also causes screen tearing and in some cases, input lag and also messes up some of the vsync settings(for example, when in hybrid mode the fps is locked to the refresh rate but when switched to nvidia, it isn't which I think is due to this as it only sets it as default but doesn't remove the igpu)

DaVikingMan commented 2 years ago

The issue with vkcube seems to have been caused due to intel video drivers, which was fixed after using modesettings driver. I will also add the same to the wiki page if others were to encounter the same issue EDIT : the issue wasn't due to the drivers but due to early KMS for intel not being enabled. I've updated the wiki page for the same

bayasdev commented 2 years ago

Disabling iGPU will lead to no video output on screens connected to iGPU even if it's used as an output sink (Nvidia mode), the only way to disable iGPU is from BIOS on laptops that have a MUX switch onboard (such as Clevo and Lenovo Legion models).