linux-kernel - Re: amdgpu_dm_connector_mode

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Message-ID: <aAn6wsnJ-6mqK4vR@mail-itl>
Date: Thu, 24 Apr 2025 10:48:02 +0200
From: Marek Marczykowski-Górecki <marmarek@...isiblethingslab.com>
To: Gergo Koteles <soyer@....hu>
Cc: Dmitry Baryshkov <dbaryshkov@...il.com>,
	Dmitry Baryshkov <lumag@...nel.org>, regressions@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	amd-gfx@...ts.freedesktop.org, Hans de Goede <hdegoede@...hat.com>,
	Alex Deucher <alexander.deucher@....com>,
	Mario Limonciello <mario.limonciello@....com>,
	Alex Hung <alex.hung@....com>,
	Harry Wentland <harry.wentland@....com>
Subject: Re: amdgpu_dm_connector_mode_valid regression

On Fri, Apr 11, 2025 at 12:01:28PM +0200, Marek Marczykowski-Górecki wrote:
> 
> Hi,
> 
> On Wed, Apr 02, 2025 at 04:35:05PM +0200, Gergo Koteles wrote:
> > Hi Dmitry,
> > 
> > But the code would start to become quite untraceable.
> > duplicate mode in amdgpu_dm_connector_mode_valid()
> > call drm_mode_set_crtcinfo() in amdgpu_dm_connector_mode_valid()
> > duplicate mode in create_stream_for_sink()
> > overwrite ctrc in decide_crtc_timing_for_drm_display_mode()
> > if crtc_clock == 0 call drm_mode_set_crtcinfo() again in
> > create_stream_for_sink() 
> 
> FWIW I'm affected by the same issue (on HP ProBook 445 G7, with AMD
> Ryzen 5 4500U). And the patch quoted below fixes it for me too.

I've re-tested it with 6.15-rc3 and the issue is still there. Is there
something I can do to help fixing it before final 6.15 is out?

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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