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Date: Tue, 13 Aug 2024 16:21:02 +0200
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Kevin Holm <kevin@holm.dev>
Cc: stable@vger.kernel.org, patches@lists.linux.dev,
	Mario Limonciello <mario.limonciello@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Hersen Wu <hersenxs.wu@amd.com>, Wayne Lin <wayne.lin@amd.com>,
	Daniel Wheeler <daniel.wheeler@amd.com>
Subject: Re: [PATCH 6.10 257/263] drm/amd/display: Defer handling mst up
 request in resume
Message-ID: <2024081345-eggnog-unease-7b3c@gregkh>
References: <20240812160146.517184156@linuxfoundation.org>
 <20240812160156.489958533@linuxfoundation.org>
 <235aa62e-271e-4e2b-b308-e29b561d6419@holm.dev>
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In-Reply-To: <235aa62e-271e-4e2b-b308-e29b561d6419@holm.dev>

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