I did the following operation on XPS 9370, I can get eDP back to on after resume.
ubuntu@oem-4-4-somerville-xps13-italia-201708-25696-rt-dongle:/sys/class/drm$ cat card0-eDP-1/dpms On ubuntu@oem-4-4-somerville-xps13-italia-201708-25696-rt-dongle:/sys/class/drm$ sudo -s root@oem-4-4-somerville-xps13-italia-201708-25696-rt-dongle:/sys/class/drm# rtcwake -m freeze -s 15 rtcwake: assuming RTC uses UTC ... rtcwake: wakeup from "freeze" using /dev/rtc0 at Tue Jan 11 03:55:00 2022 root@oem-4-4-somerville-xps13-italia-201708-25696-rt-dongle:/sys/class/drm# cat card0-eDP-1/dpms On Here is my software info: BIOS: 1.17.0 kernel: 5.11.0-46-generic Could you try dist-upgrade to latest kernel? Also I saw some snd_hda_intel error, the audio might be broken. ** Attachment added: "eDP-resume.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1955903/+attachment/5553231/+files/eDP-resume.log ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Kai-Chuan Hsieh (kchsieh) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1955903 Title: Dell XPS 13 9370 never wakes from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1955903/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
