When the screen gets locked (manually or by power-saving), or when the current user logs out the screens turn off and it's impossible to turn them on again, when i restart the physical displays they just go into power saving mode.
nouveau seems to crash when it tries to switch to the login/unlock screen
In case nouveau crashed, coredumpctl should list a crash and you should be able to debug it. Try using abrt to report the bug or use coredumpctl. See https://fedoramagazine.org/file-bette... for details.
Anyway, without a few more data, e.g. from your syslog (journalctl -b -1 lists all the logging from previous boot, journalctl -b lists logging from current boot) there is no way to help you.
try installing proprietary and see if that helps. if so, then submit a bug report to the nouveau developers.
Asked: 2017-11-06 10:33:02 -0600
Seen: 64 times
Last updated: Nov 14 '17
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it helped, not only does locking the screen work again, but it also stopped flickering, when i have time i will try to recreate the bug and file a report