Package: bugs.debian.org Severity: important Dear Maintainer,
I am running a Debian 11 system that I installed on my desktop PC in October 2021. On three occasions, all within the last month, I have returned to my desktop after a couple of hours of it idling to find it unresponsive. When this happens, my two displays cannot detect a signal and do not find one after being restarted. USB power is still operational, but peripherals are clearly not communicating with the PC - the NumLock, CapsLock and ScrollLock status can not be changed and the 'magic' REISUB process doesn't work as it usually does. This issue isn't related to suspend mode, which I have disabled. The system is running conventional desktop software; the only 'unusual' program that was running on all occasions was a Docker daemon. Here's the output from Neofetch: seabass@seabass-debian ---------------------- OS: Debian GNU/Linux 11 (bullseye) x86_64 Kernel: 5.10.0-11-amd64 Uptime: 8 mins Packages: 2843 (dpkg), 18 (flatpak) Shell: bash 5.1.4 Resolution: 1920x1080, 1920x1080 DE: Xfce 4.16 WM: Xfwm4 WM Theme: Default Theme: Adwaita [GTK2/3] Terminal: xfce4-terminal CPU: Intel i3-3220 (4) @ 3.300GHz GPU: Intel HD Graphics Memory: 1979MiB / 15701MiB I had to force-restart the system by using the motherboard's power button - explaining the low uptime listed in the data above! Unfortunately, I cannot reproduce this bug. Best wishes, Sebastian