baldyeti wrote:I have noticed quite a few symlinks under /etc/alternatives pointing to some nvidia files and directories Ideally I'd like to fix this without purging the system from working nvidia drivers (i may transfer my graphics card later) How would one make the links under alternatives point to intel (or mesa...) files instead of nvidia's and do i need to install additional deb packages ?hello, as i often do, i have cloned a working partition onto a new system the source system has an nvidia adapter with its proprietary driver the target system has sandy-bridge HD2000, and apparently no opengl (glxinfo reports "extension GLX missing") can someone help diagnose and fix ? tx!deloptes wrote on 2016-10-05 09:25: AFAIR the GL support is added by the driver via alternatives. I don't recall how I fixed this few years ago on one PC with NVidia, but you can have a look into update-alternatives. I read the manuals some time ago to setup custom firefox installation and it looked like this. update-alternatives --install /etc/alternatives/firefox x-www-browser /opt/custom/firefox/firefox 300 update-alternatives --set x-www-browser /opt/custom/firefox/firefox It could be more work though as you have more symlinks for NVidia for sure. I think the proper way would be to purge/remove the package with its configuration and setup again or new one properly.
Thank you for the hint. I am not sure that is all there is to it, but "update-alternatives --set glx /usr/lib/mesa-diverted" seems to have done the trick (glxinfo now works and kde uses some transparency)