I have more information. I compiled Linux myself, and got no such freeze during poweroff.
Here is how I compiled it: git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ git checkout tags/v5.11 -b 5.11 make defconfig make HOSTCC=gcc-10 CC=gcc-10 -j8 sudo make modules_install -j8 sudo make install I did this with 5.11, 5.12, and 6.8 (with gcc 13.2). I could reboot and poweroff fine each time. Could it be because of a modification in the .config used to compile Linux for Ubuntu, which would have happened between 5.11 and 5.12? I attached the output of `diff /boot/config-5.11.0-20-generic /boot/config-5.12.0-051200-generic`. ** Attachment added: "diff" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2078726/+attachment/5812959/+files/diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2078726 Title: VAIO freezes at poweroff To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2078726/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
