Re: Nvidia Optimus, Debian 10, and Firefox ESR crashes

[Felix Miata <mrmazda@earthlink.net>]

David Christensen composed on 2021-01-04 19:47 (UTC-0800):

> And a new issue:

> Xfce -> Settings -> Display -> Resolution now only offers three choices:

> 1024x768
> 800x600
> 640x480

> The laptop has a 1920x1080 screen.  The external monitor is 1920x1080. 
> The nouveau driver was able to drive both the laptop display and the 
> external monitor at 1920x1080.  I would like to do so with the non-free 
> Nvidia legacy driver.

Installation of a proprietary driver typically entailing several changes from a
default installation. Typically one such change is a cmdline option, either
nomodeset, or nouveau.modeset=0 in the case of NVidia GPUs. KMS, which these
options disable, is required to support all competent FOSS DDX drivers. The
fallbacks typically are limited to VESA modes, which AFAIK normally do not include
1920x1080, which you wouldn't want to use except in emergency anyway, as they
offer nothing resembling acceleration. Restoring a normal cmdline may fix you up.
It may not, as some uninstallation processes fail to remove a library altered to
accommodate the proprietaryware. People with this problem often choose to
reinstall the OS because all the help they get suggesting a fix fails them.

See also:
<https://www.linuxquestions.org/questions/blog/mrmazda-1035595/amd-intel-and-nvidia-x-graphics-driver-primer-38306/>
-- 
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	is based on faith, not on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/