@koba, the issue still present on that one. Logging seems borked in that RC, it only started ~1s into boot.
In the attached log, 1. the affected monitor (BenQ) "went away" after logging in at boot 2. came back after getting power cycled 3. suspended and woke fine on first Super+L 4. went away again on second Super+L 5. came back after getting power cycled The second monitor (LG) suspended and woke up fine in each case. This is with: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0 i915.modeset=1 nvidia_drm.modeset=1 usbcore.autosuspend=-1 drm.debug=0x10e" GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 ipv6.disable=1" The PSR=0 flag is needed to avoid random hard freezes on this laptop model (unrelated issue even with Windows). ** Attachment added: "5.15-rc2-2.log" https://bugs.launchpad.net/dell-sputnik/+bug/1922334/+attachment/5527314/+files/5.15-rc2-2.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1922334 Title: External monitor does not wake up on Titan Ridge laptops when docked (9500, TB16) To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1922334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
