How to force Xorg/Firefox to use iGPU instead of discrete nvidia card on a Clevo laptop?

[aivils at latnet.lv]

I suppose that was solved years ago
https://bumblebee-project.org/
https://wiki.debian.org/Bumblebee
Unfortunately, I have not used this software for several years. I can't 
say if it works at the moment.

Aivils

Aaron Plattner @ 2021-03-24 19:03 rakstīja:
> Mesa lumps all of its drivers together under one vendor named "mesa"
> so you are supposed to be able to do something like this:
> 
> DRI_PRIME=1 __GLX_VENDOR_LIBRARY_NAME=mesa glxinfo | grep vendor
> 
> Unfortunately, Mesa doesn't like something about the GLX fbconfigs the
> NVIDIA driver provides, so it doesn't actually work:
> 
> libGL error: No matching fbConfigs or visuals found
> libGL error: failed to load driver: swrast
> X Error of failed request:  GLXBadContext
>   Major opcode of failed request:  152 (GLX)
>   Minor opcode of failed request:  6 (X_GLXIsDirect)
>   Serial number of failed request:  62
>   Current serial number in output stream:  61
> 
> -- Aaron
> 
> On 3/24/21 6:44 AM, Dan wrote:
>> On Wednesday, March 24, 2021 2:33 AM, Sérgio Basto <sergio at serjux.com> 
>> wrote:
>> 
>>> We usually have the opposite problem. we want to enable discrete 
>>> nvidia card by default, please try reverse these options [1]
>>> 
>>> [1]
>>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Frpmfusion.org%2FHowto%2FOptimus%23Finer-Grained_Control_of_GLX_.2B-_OpenGL&data=04%7C01%7Caplattner%40nvidia.com%7Cc5eb3f42dc9547fdba5208d8eecc5ff0%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C1%7C637521908842807820%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=a0HaIV6LuWMatH2Vqc%2FWAYYekoKZjqXdVtYjvBn8DGE%3D&reserved=0
>> I see. I tried the following:
>> 
>> ~$ __NV_PRIME_RENDER_OFFLOAD=0 __GLX_VENDOR_LIBRARY_NAME=i965 
>> glxinfo|grep vendor
>> server glx vendor string: NVIDIA Corporation
>> client glx vendor string: NVIDIA Corporation
>> OpenGL vendor string: NVIDIA Corporation
>> 
>> ~$ __NV_PRIME_RENDER_OFFLOAD_PROVIDER=modesetting 
>> __GLX_VENDOR_LIBRARY_NAME=i965 glxinfo |grep vendor
>> server glx vendor string: NVIDIA Corporation
>> client glx vendor string: NVIDIA Corporation
>> OpenGL vendor string: NVIDIA Corporation
>> 
>> ~$ __NV_PRIME_RENDER_OFFLOAD_PROVIDER=modesetting 
>> __GLX_VENDOR_LIBRARY_NAME=i965 vainfo
>> libva info: VA-API version 1.8.0
>> libva info: Trying to open /usr/xorg/lib64/dri/nvidia_drv_video.so
>> libva info: va_openDriver() returns -1
>> vaInitialize failed with error code -1 (unknown libva error),exit
>> 
>> No matter what I try, it always defaults to nvidia.
>> 
>> Maybe I'm doing something wrong?
>> 
>> Thanks!
>> 
>> 
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