Screen goes completely black with white underscore

mt flag

The problem appeared recently and I don't know how to pinpoint the cause of it. The screen will go completely black with a white underscore at the top left hand corner. This problem occurs a few times per hour.

The applications seem to still be running in the background, as I can still hear people and they can still see me if I am in a conference call. I can also login to another TTY by pressing Ctrl+Alt+F{i}, and if I restart the computer, it works just fine.

I'm running Lubuntu 18.04.6 LTS on my machine. Thanks a lot for your help!

BeastOfCaerbannog avatar
ca flag
@ChanganAuto Lubuntu 18.04 is still supported here though until 2023.
guiverc avatar
cn flag
FYI: Lubuntu 18.04 LTS is no longer supported; refer or where you'll note only Ubuntu Server, Ubuntu Desktop & Ubuntu Cloud come with 5 years of support; *flavors* only had shorter lives. I'd suggest using `ubuntu-support-status` to assess the security status of your actual install. Your question is still on-topic here, but consider how much security matters to you and the results of prior command. You're now using Ubuntu 18.04 LTS with LXDE (*not Lubuntu*).

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