Source: linux Followup-For: Bug #943515 Hi,
I'm experiencing the same issue, only with Debian-provided kernels since version 5.2. It's affecting all versions packaged since. My workaround is to compile the kernel from upstream, which works as expected without any issue. My laptop is a Thinkpad X260. If I disable the security chip or set it to Discrete TPM, the issue disappears. So, to me, it seems like something in Debian packaging related to TPM is causing this issue. -- System Information: Debian Release: bullseye/sid APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.4.4 (SMP w/4 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled