16.04 LTS. Brightness & Lock setting. Set to turn screen off when inactive 1 min. Turns off OK, but does not come back. Keyboard useless. Mouse useless. Nothing brings the screen back. I have to cut power to machine, reboot. Also happened w/14.04 LTS
16.04 LTS. Brightness & Lock setting. Set to turn screen off when inactive 1 min. Turns off OK, but does not come back. Keyboard useless. Mouse useless. Nothing brings the screen back. I have to cut power to machine, reboot. Also happened w/14.04 LTS
It happened w/14.04 LTS, just after a clean install. So I thought that upgrading to 16.04 LTS would fix it. But now I have 16.04, all software up-to-date, and the problem still happens.
I think that it should happen that, after the screen goes dark, I strike any key, or move the mouse, and the screen comes back.
To deal with this, I have set Brightness & Lock to "Never" turn the screen off. I can turn off the monitor with its power button. But 12.04 LTS spoiled me, because it does not have this problem. With 12.04, the screen would turn off as directed, and turn on again with any keystrike.
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