Ubuntu Version: Kubuntu 25.04
Desktop Environment: KDE Plasma
Problem Description:
I'm new to Kubuntu, and trying to get my fresh install to sleep correctly. Currently, when I command the system to sleep, it does go to sleep, but also disables ALL USB power (both from the rear of my motherboard and from my front panel), making waking the computer from sleep impossible as my keyboard / mouse are unpowered. The system does appear to still be somewhat active otherwise, as expected for sleep, with fans still getting power and RGB components still lit. It also does not respond to pings in this state (I believe because sleep / suspend disables networking, though I am not sure if this is default behavior). I have been unable to wake the system from sleep without doing a hard reset.Relevant System Information: Gigabyte Z690 Aorus Elite AX DDR4 motherboard, latest bios (ver. F30, September 2024)
I’ve gone through all of my BIOS power options, and found nothing relating to USB power during sleep. My BIOS is entirely on default settings save for XMP and resizable BAR.
I found a possibly related post on the Ask Ubuntu forums (https://askubuntu.com/questions/848698/wake-up-from-suspend-using-usb-device#848699). I don’t know how relevant these solutions are to me as I don’t have USB power at all in sleep mode (caps lock light etc does not work), but I did determine which device my keyboard is and wrote a script to set its /power/wakeup parameter to enabled on boot. This did not change the behavior at all, though that parameter is consistently enabled now:
grep . /sys/bus/usb/devices/*/power/wakeup
returns
(device 1-5.1.1 is my keyboard)
Any ideas would be great, as for now I’ve had to disable sleep and settle for screen locking instead.