I can’t confirm anything and already wasted weeks on my friend’s issue with his GT 210 card (don’t really want to dig in his computer to troubleshoot it now that I fixed it), but I ended up installing manually from these instructions here [Support/How-To] Compile old/legacy Nvidia Proprietary Drivers [2020-12-30 Update Issue] the 340 drivers to have a fully working video card in all software. I don’t know what the issue is but with the 390 drivers his computer was acting weird. I don’t know what’s going on but I suspect the 390 drivers are not installing/working properly.
For your issue, first things first, provide your system info this is the bare minimum to start a support thread: How to provide good information
Drivers seem to be installed.
I checked on my side and in the OpenGL Info application, I have Nvidia and not MESA in the DRIVER section so this may indicate the issue.
OK not really helping, but you’re using the 5.9 RT kernel (any reason you’re using a Real Time kernel?). I would first suggest you to install the 5.4 LTS kernel (not the RT). Then reboot on this kernel and see if this changes something, I think the 390 Nvidia drivers work with 5.4 and 5.10, not sure with other kernels.
Weird I don’t know any Manjaro edition that installs a RT kernel. Anyway if you don’t have usage for a RT kernel don’t use that.
PS: manage Kernels from the Manjaro Settings application, in the Kernel menu. You can’t remove a running kernel so if you want to clean it up, first reboot on the 5.4 kernel.
I think you messed up your system when you removed your running kernel it probably removed nvidia packages too lol. To be fair I said INSTALL 5.4, I didn’t say REMOVE 5.9
At this point I’m not sure what would be the best thing to do, first try your games and apps to see if the situation is the same on Kernel 5.4. //EDIT ok it is same.
Regarding my recent experience with drivers 390, I personally would remove them from Manjaro Settings, at this point DO NOT REBOOT, then I would follow the instructions to install the 340 drivers, and after properly installing 340 I would reboot (only at this point) and see if there is a difference now. If you have proper performance with 340, then my experience and yours could lead to more people looking into 390 to see if everything is OK in these drivers provided by Manjaro. I suspect they have issues. If it is the same then… need more to chime in.
If you don’t have the patience to remove/reinstall maybe wait for someone else to have better suggestion
OK thanks for confirming your experience. I kinda recall something along the lines of “390 was cut down from some modules to work with current kernels” or something like that, but I can’t find a thread about this vague memory, maybe that’s the issue if I recall correctly.
Will update you on the topic if/when I have more info, I will try to have Manjaro team to investigate.