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delta-one / dell-xps-15-9570-debian-linux

Experiences running Debian Linux on a Dell XPS 15 9570
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mem_sleep_default=deep has a fix #2

Closed smopucilowski closed 4 years ago

smopucilowski commented 4 years ago

You may now use the mem_sleep_default=deep kernel parameter for deep sleeping.

According to: https://wiki.archlinux.org/index.php/Dell_XPS_15_9570 and https://www.dell.com/community/Precision-Mobile-Workstations/High-load-heating-up-fan-noise-after-S3-suspend-and-resume-on/td-p/7441933 clicking the touchpad pulls the CPU out of a high power state if it gets stuck, likely an IRQ triggering it.

delta-one commented 4 years ago

Thanks for the tip. I'll test it and update the description if needed.

delta-one commented 4 years ago

I tested it again and I didn't have the CPU bug anymore. There was no need to click the touchpad.

However, the deep sleep seems to screw some of my energy settings. The hardware buttons for setting the brightness or for turning the screen on/off don't work anymore after a deep sleep. Have you noticed anything lke that ?

smopucilowski commented 4 years ago

No, I've noticed no such issues; I'm using mate-desktop however, which uses mate-power-manager which takes over power management when the graphical session is running.

delta-one commented 4 years ago

Tried it again and this time, it was the exact opposite: Energy fn-buttons were fine, but the CPU got stuck. Clicking on the touchpad resolved the issue though. I'll update the description. Thanks for reporting it.