Looks like it has been resolved in 5.11.0-34, it doesn't happen any more. But it did in previous builds.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.8 in Ubuntu. https://bugs.launchpad.net/bugs/1940609 Title: internal display goes dark Status in linux-signed-hwe-5.8 package in Ubuntu: New Bug description: I'm on a Dell XPS 13 9350 (i7-6500U, Mesa Intel HD Graphics 520 SKL GT2) Ubuntu 20.04.3. Since kernel update the internal laptop display goes dark, external one works fine, which is attached via USB-C Port). When I boot with kernel 5.8 internal display is back to normal. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.8.0-43-generic 5.8.0-43.49~20.04.1 ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-43-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Aug 20 05:32:28 2021 InstallationDate: Installed on 2021-08-12 (7 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) SourcePackage: linux-signed-hwe-5.8 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1940609/+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
