On Wed, Jan 18, 2023 at 07:49:38PM +0000, bugzilla-daemon@xxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=216950 > Summary: DisplayPort USB-C hub issue > Kernel Version: 6.2.0-rc3 > ... > Created attachment 303624 > --> https://bugzilla.kernel.org/attachment.cgi?id=303624&action=edit > dmidecode + kern.log > > I have HP 845 EliteBook G7 (Ryzen) and before 6.2.0-rc3 installation > there was no issue with my laptop and HP docking station via USB-C. > > This kernel display behaves weirdly. LCD monitor (connected to > docking station via DisplayPort) wakes up only once after reboot. > Second docking connection ends up with blank external screen and > only restart helps. > > Display manager detects extra screen and even newly launched apps > land there. > > I didn't have such issues with original distro kernel > 5.16.15-76051615-generic This report (which looks like a regression between 5.16.15-76051615-generic and 6.2.0-rc3) was raised against PCI, but I don't see PCI issues in the logs. Any DRM ideas? Bjorn
