Black screen with unblinking cursor on sleep [duplicate]
I suspect that your problem is related to the latest NVIDIA update, which installs nvidia-driver-460. There is currently a bug with this version and some versions after it. You can subscribe to the bug here: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1911055
You can workaround the issue until the bug gets resolved by downgrading the NVIDIA driver to a previous version. Follow these steps to downgrade to nvidia-driver-450-server:
-
Open Software & Updates and go to the Additional Drivers tab.
-
Select
nvidia-driver-450-server(Using NVIDIA Server Driver metapackage from nvidia-driver-450-server (proprietary)).
You may try other drivers instead of
nvidia-driver-450-server, if you wish, and stay with the one that works best for you. -
Click Apply Changes and wait until the changes are applied.
-
Restart your system.
Suspend should now work as expected!
I had the same issue on an Acer Aspire laptop running Ubuntu 20.04 with NVIDIA. I was using the default driver (nvidia-driver-460). I then tried nvidia-driver-450-server and still didn't have any luck. Then I tried nvidia-driver-418-server and it worked.
Additional Drivers tab in Software & Updates
My advice, keep rolling back the driver and testing until you find one that works.
- Open Software & Updates -> Additional Drivers tab.
- Select nvidia-driver-418-server.
- Click Apply Changes.
- Reboot system.
- Test suspend.