I upgraded to Fedora 36 yesterday and installed the latest nvidia drivers:
$ dnf list installed | grep nvidia akmod-nvidia.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree kmod-nvidia-5.17.6-300.fc36.x86_64.x86_64 3:510.68.02-1.fc36 @@commandline nvidia-persistenced.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree nvidia-settings.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia-cuda.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia-cuda-libs.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia-kmodsrc.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia-libs.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree xorg-x11-drv-nvidia-power.x86_64 3:510.68.02-1.fc36 @rpmfusion-nonfree
Since the upgrade, I’m seeing that after 30 seconds of keyboard/mouse inactivity all 3 of my screens (builtin lcd plus 2 external monitors) go blank (I’ve tested this empirically several times and the 30 second time is consistent). Hitting a key or moving the mouse will bring them back. It’s almost like my power mgmt “Screen Blank” time is set to 30 seconds rather than 15 minutes which is what it appears to be set at when I bring up the “Settings / Power” dialog.
I don’t know for a fact that this is being done by the nvidia driver, but thought I’d ask here in case others are seeing the same problem. Any ideas on how to fix this or at least gather more information to perhaps determine which component might be doing this?
Previous to this upgrade, I was on Fedora 34 and used an older nvidia driver release stream (470.xx) due to the corrupted graphics problem I ran into with the two more recent release streams, but I never encountered this screen blanking issue back then.
Any help would be appreciated!
Edit: I thought I’d also mention that I changed the Screen Blank time in the “Settings / Power” dialog to “Never” and that didn’t help either.
Edit 2: I did an experiment where I uninstalled the nvidia driver to revert back to the nouveau driver and the problem did not occur after that. I then installed the 470.xx release stream of the nvidia driver and the problem also didn’t occur with that either. Currently, I’m running with that version.