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I was customizing UB in the Screensaver settings. I clicked on Blank Screen as the screen saver setting. The screen immediately went blank. I did not click the OK button. I could no longer see it. Now, when I startup in normal mode, the screen dims while the round green logo is still up and stays dim. Just as the desktop comes up, I can see the start bar (still dim), for a few milliseconds, then it all goes blank (black).

If I start in safe graphics mode, all is well, so it is not a hardware problem. Running that way now. There seems to be a bug in the screensaver setting code. Are there some screensaver configuration files I can delete or edit to get back to normal so I don't have to select Safe Graphics every time? Yes, I can rebuild the USB stick but I hate to. It takes so long to get the updates on!

I have tried selecting other settings for screensaver including totally off while running in Safe Graphics mode. Same for power saving. Nothing I select causes the screen to act normally during default startup. The screensaver does come on when the computer is idle so it is working somewhat. Seems more like a Power Saver problem but was caused, I think, on the Screensaver configuration panel.

This is the x64 version or 20.04 LTS, booting from a USB stick.

Note, the secondary screen is still working normally. I can see and run programs there.

07-31-2020, 05:15 AM
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