I have OpenSUSE Leap 15.6. Everything worked fine untill recently: when my computer goes to suspend / hibernate mode, and when I try to reactive it, I get a black screen with the mouse pointer visible.
I have to press CTRL+ALT+BACKSPACE to restart the graphical interface (and then everything is fine).
I have a standard computer (relatively modern), with NVIDIA and proprietary drivers. An update certainly caused the issue.
I am no expert, could you please explain me how to solve the issue? I am using Plasma (I guess).
This fault has been going around and seems to be related to the 570 Beta Driver as highlighted by the other reply. So assuming you are using that & want to roll back, I managed to acheive this successfully by using the following:
To downgrade Nvidia drivers: Simply sudo zypper in nvidia-drivers-G06. Answer yes when you get asked to downgrade.
On the way through I was also asked about updaing/ replacing a config file or something similar which I said yes to as I wanted to make sure there were no other remnants or conflicting things left.
After that to avoid these being updated again at the next update you can lock in these setting using
sudo zypper addlock nvidia-compute-G06 nvidia-compute-G06-32bit nvidia-compute-utils-G06 nvidia-driver-G06-kmp-default nvidia-gl-G06 nvidia-gl-G06-32bit nvidia-video-G06 nvidia-video-G06-32bit nvidia-drivers-G06 nvidia-utils-G06
This all worked for me although I find the 550 driver works best in X11 rather than Wayland with my Graphics card. Maybe also check if you have any other nvidia things that need locking as I’m on TW rather than Leap. Hope this helps & see the second half of the following following forum post where the above instructions about downgrading the drivers were discussed. https://forums.opensuse.org/t/how-can-i-get-my-second-monitor-to-work-with-proprietary-nvidia-drivers/182602/6
Hope this helps.