I tested 5.4.22: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.22/linux-image-unsigned-5.4.22-050422-generic_5.4.22-050422.202002240833_amd64.deb
Brigthness, s2ram and "echo mem > /sys/power/state" is working fine. "echo disk > /sys/power/state" gets laptop into hibernate (it switches off), but thawing does not work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864930 Title: brightness setting and sleep/suspend (echo mem > /sys/power/state) , s2ram and s2disk fail for 5.4.0 and s2disk fail for 5.4.22 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-5.4/+bug/1864930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
