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似乎是 kscreenlocker 的問題。在 Arch 的論壇中有看到使用最新 KDE + kernel 5.7 + nvidia 450 的組合造成 kscreenlocker 運作失常的案例。
https://bbs.archlinux.org/viewtopic.php?id=257327&p=2
目前的暫時解法是在桌面卡死時切換到 TTY 用
sudo kill kscreenlockd
來讓桌面恢復運作。
你也可以試試使用 kernel 5.4 看看這問題還在不在。
或者是使用 nvidia-440 到 bug 解決為止。
Black screen when resuming from suspend Graphics & Display
Behavior : whenever the system goes into suspend, be it manually or automatically, on resume I get a black screen with a cursor.
If I kill kscreenlocker_greet I can access my desktop again.
If I disable screenlocking I don’t get the black screen.
Running 5.8.6-1 with 450xx nvidia drivers. Same behavior with 5.7.19-2
Added to which, after resuming from suspend I get a corrupted left panel (showing only a black bar) in system settings. [system settings bug]
This behavior does not manifest it…
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