On Friday, 30 December 2016 13:38:47 GMT Fabian Vogt wrote:
Hi
Fell foul of the unable to build nvidia against new 4.9 kernels - something about missing files or sources compiled against wrong versions. So i thought, simple, go back to nouveau, just a matter of removing a blacklist line in a file. Unfortunately not, I get the login (kdm) list, enter my password for the user i selected and then get this message "Plasma is unable to start as it could not correctly use OpenGL 2" - i'm sure my config was set to use opengl 3.x when using nvidia driver. I have to ctrl backspace backspace to return to login list after clearing the popup error message. i've searched the web for this message and did not find any suitable ways of correcting the problem .
Any ideas? I've tried to log in using the plasma failsafe session (?) but that results in getting the same message. I can log in using icewm but thats no good to me and nothing i need runs properly. The nvidia driver does not only consist of a kernel module, it also replaces
Am Freitag, 30. Dezember 2016, 12:07:37 CET schrieb bingmybong@btinternet.com: the system's libGL and various other libs. You need to uninstall nvidia completely and reboot to return to nouveau. The uninstall cured the problem.
The failsafe session does not work with the nvidia driver probably because it does not support the LIBGL_ALWAYS_SOFTWARE environment variable. Mmm thats a shame when the failsafe doesn't work
Cheers, Fabian
Thanks for the solution.
regards
Ian
Up to date tumbleweed/kde/plasma etc I'm using a web interface on a win10 to send this email hence no definitive version numbers. Just downloaded latest tumbleweed iso in case i have to reinstall
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