[Acer Aspire E 15] Black screen with backlight after waking up from hibernation

[Rob Huijben]

I installed Ubuntu 20.04.2 on an Acer Aspire E 15 (E5-575G-32NY) laptop, which works fine except for waking up after hibernation mode.

Step to reproduce

When I close the lid of the laptop, it goes in hibernation mode and when opening it does only show a black screen with a static (cursor?) underscore in the top left corner. After a few seconds, it goes to complete black, but the backlight is still active. No matter how long I leave the laptop in this state, it does not change so a hard reboot is needed to restart.

Steps taken to try to solve

- Disable and blacklist Nouveau nvidia driver on Ubuntu 20.04 Focal Fossa Linux
- Checked if same happens when using command systemctl hibernate (same result)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1923308/+editstatus and add the package name in the text box next to the word Package.

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