Hi Thank you for responding, after reading your message, and having recently upgraded to the 5.5.0 kernel, I decided to check it again.
I can confirm that this seems to be an issue that does NOT affect the new kernel 5.5.0. I booted into the old 4.18.0-12 kernel and the issue was there, so it looks like it is something, which has been sorted in the latest kernel. Thanks, -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1861634 Title: Dell XPS 9575 after resume from sleep/suspend, the backlight does not turn back on Status in linux package in Ubuntu: Incomplete Bug description: Release=Focal 20.04 (development) Pretty sure this is an xserver-xorg-video issue, please advise. After closing laptop lid on Dell XPS 9575 and resuming from sleep/suspend the backlight does not turn back on as expected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861634/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
