internal display goes dark

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)