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genodelabs / genode

Genode OS Framework
https://genode.org/
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vbox: guest triggered screen-blanking does not clear the screen #5263

Closed cnuke closed 1 week ago

cnuke commented 2 months ago

It can happen with guests running in vbox6 on Sculpt that screen-blanking, for example triggered as part of energy-saving means, does not clear the screen but still shows the last displayed content indefinitely (until a new input event is received).

The behavior could be provoked with a Win10 guest (screen-saver set to 1 min) and with a void-linux guest by executing xset dpms force off. A Ubuntu 22.04 guest (screen-server set to 1 min as well) on the other hand shows a blank (black) screen, which would be the expected result.

alex-ab commented 1 month ago

I have a commit, which solves the issue for me on Win10 guest. Same is also done already by vbox5.