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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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(partially solved, will update when completed) Please help with an xfce/powerup bug: black screen after suspend/hibernate (programming.dev)

submitted 6 months ago* (last edited 6 months ago) by [email protected] to c/[email protected]

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MX Linux, Xfce 4.18

Closing the laptop lid suspends the system, opening it resumes it, but the screen is black. I'm guessing it's related to powerup because suspending through the logout menu and systemctl suspend both work as expected. When it's black, switching to a different tty works, as well as C-M-Backspace to logout.

Same results with both lightdm and sddm, when replacing suspend with hibernate, and I've tried a few solutions like disabling lock on sleep.

Seems like this issue has been around for years, but had a whole bunch of different causes since every other thread has a different solution.

XFSETTINGSD_DEBUG=1 xfsettingsd --replace --no-daemon > /tmp/xf.log 2>&1

ps -ef | grep -E 'screen|lock'

xfconf-query -c xfce4-power-manager -lv

dmesg, cleared it before trying to suspend

updates:

I'm not seeing a black screen, instead it turns on the display and then turns it off.

Additionally, I tried closing and opening the lid a few times, and it woke up correctly.

I tried it in i3wm with the xfce power manager to suspend after closing the lid. It woke up correctly 10 times in a row.

Solution: start an xrandr config and the monitor turns back on.

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[–] [email protected] 3 points 6 months ago* (last edited 6 months ago) (1 children)

I found a different solution: trigger an xrandr config. I'm leaving automating it for tomorrow.

The funniest thing is that I was trying to help out some other lemmy user fix their own xrandr issues, and accidentally came across a thread mentioning it when I went back to fixing my own.

Thanks for the help anyways

[–] [email protected] 2 points 6 months ago (1 children)

OK glad you found some workaround!

[–] [email protected] 2 points 6 months ago

I found it because you pointed out the monitor might be turning off. Changed search terms and found the recommendation in a Reddit thread. The full solution wasn't great though.