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<div class="moz-cite-prefix">On 8/16/20 6:57 PM, DryHeat122 wrote:<br>
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<div dir="ltr">I recently upgraded to Ubuntu 18.04/Myth 31. I
leave the frontend running all the time and just turn off the
monitor when I'm not watching anything. Twice now, the
following has happened. After the system has sat idle for some
time (overnight this time) I turn on the monitor and the screen
is black. I cannot change to a terminal window with
ctl-alt-F2. However, I can SSH to the myth box from another
machine and issue terminal commands just fine. Rebooting fixes
the problem. I have all the screen-saver and sleep
functionality turned off, and the monitor works fine on other
inputs, so I don't think it's either of those things.
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<div>I have searched the black screen symptom and the threads I
find (for example <a
href="https://askubuntu.com/questions/1085807/black-screen-after-installation-of-ubuntu-18-04"
moz-do-not-send="true">this one</a>) are about this problem
happening at boot, not after the machine has been sitting idle
for some time. It also doesn't happen consistently, maybe
twice in the last couple weeks.
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<div>Has anyone experienced this problem before? Any pointers
for how to fix or troubleshoot? Thanks......Steve</div>
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<p>Under settings,power, do you have blank screen set to never and
automatic suspend too off? One other thing you can look at is your
BIOS. There is some settings in there that can cause that also.
You didn't say what video card you are using. It could be a driver
issue. If it's onboard video, try a card if you happen to have
one...</p>
<p>Good luck<br>
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