[AMD Official Use Only - AMD Internal Distribution Only] Hi Greg and Kevin, Sorry for inconvenience, but this one should be reverted by another backport patch: "drm/amd/display: Solve mst monitors blank out problem after resume" Thanks, Wayne Lin > -----Original Message----- > From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Sent: Tuesday, August 13, 2024 10:21 PM > To: Kevin Holm <kevin@xxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx; patches@xxxxxxxxxxxxxxx; Limonciello, Mario > <Mario.Limonciello@xxxxxxx>; Deucher, Alexander > <Alexander.Deucher@xxxxxxx>; Wu, Hersen <hersenxs.wu@xxxxxxx>; Lin, > Wayne <Wayne.Lin@xxxxxxx>; Wheeler, Daniel <Daniel.Wheeler@xxxxxxx> > Subject: Re: [PATCH 6.10 257/263] drm/amd/display: Defer handling mst up > request in resume > > On Tue, Aug 13, 2024 at 02:56:18PM +0200, Kevin Holm wrote: > > > > On 8/12/24 18:04, Greg Kroah-Hartman wrote: > > > 6.10-stable review patch. If anyone has any objections, please let me > know. > > This patch seems to cause problems with my external screens not > > getting a signal after my laptop wakes up from sleep. > > > > The problem occurs on my Lenovo P14s Gen 2 (type 21A0) connected to a > > lenovo usb-c dock (type 40AS) with two 4k display port screens > > connected. My Laptop screen wakes up normally, the two external > > displays are still detected by my system and shown in the kde system > settings, but they show no image. > > > > The problem only occurs after putting my system to sleep, not on first boot. > > > > I didn't do a full git bisect, I only tested the full rc and then a > > build a kernel with this patch reverted, reverting only this patch solved the > problem. > > Is this also an issue in 6.11-rc3? > > thanks, > > greg k-h
