https://dev1galaxy.org/viewtopic.php?pid=20903#p20903

after installing

apt install nvidia-legacy-304xx-driver

everything seems fine, but after reboot ni the bootprocess there comes error like

modprobe_FATAL module Nvidia-legacy-304xx not found ...
modprobe /libkmod error ....

the graphics card "Quadro 770m" should be supported by legacy driver for nvidia?

What does nvidia-detect say?

And please post the full, verbatim error messages for the failed package installation.

https://wiki.debian.org/NvidiaGraphicsD … cy_GPUs.29

Thank you for pointing me in the right direction.

i tried to install a program on my laptop running beowulf 64bit,
and in the process i went to install first the package

nvidia-opencl-icd

and afterwards

nvidia-legacy-340xx-driver

for nvidia quadro 770m.

however, on both packages i got errors,
like

dpkg: error processing package nvidia-persistenced (--configure):
 installed nvidia-persistenced package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 nvidia-persistenced

afterwards i de-installed the nvidia-opencl-icd, and the graphics went back to normal (after process of installing the opencl package the resolution got downsized from 1920x1200 to 1280x800), however the error with

still remains.