Package: bugs.debian.org
Severity: important
X-Debbugs-Cc: [email protected]
Dear Maintainer,
* I have installed Debian bookworm (Linux loki 6.1.0-10-amd64 #1 SMP
PREEMPT_DYNAMIC Debian 6.1.38-2 (2023-07-27) x86_64 GNU/Linux) on a
Thinkpad X270 (Intel(R) Core(TM) i5-7300U).
* I have disabled secure boot to be able to hibernate the system.
* After booting with secure boot *disabled* and *while on battery
power* the CPU freq gets stuck at 400MHz (the lower hardware limit
as reported by cpupower) and the system becomes very slow.
* After booting with secure boot *disabled* and *while on AC power*
the CPU freq is regulated by the governor (powersave or
performance) as expected and the system works fine.
* Rebooting with secure boot *enabled* completely fixes the problem
but then hibernate is not any longer available.
Thanks for looking into this issue,
Nicola
