Re: [PATCH v5] drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21

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Am Mittwoch, dem 12.01.2022 um 02:08 +0000 schrieb Limonciello, Mario:
> [AMD Official Use Only]
>
> > -----Original Message-----
> > From: Bert Karwatzki <spasswolf@xxxxxx>
> > Sent: Tuesday, January 11, 2022 19:12
> > To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > Cc: Limonciello, Mario <Mario.Limonciello@xxxxxxx>; Kazlauskas,
> > Nicholas
> > <Nicholas.Kazlauskas@xxxxxxx>; Zhuo, Qingqing (Lillian)
> > <Qingqing.Zhuo@xxxxxxx>; Scott Bruce <smbruce@xxxxxxxxx>; Chris
> > Hixon
> > <linux-kernel-bugs@xxxxxxxxxxxxx>
> > Subject: [PATCH v5] drm/amd/display: Revert W/A for hard hangs on
> > DCN20/DCN21
> >
> > I just tested patch v5 applied to amd-staging-drm-next (with HEAD
> > 26c981e27e698c251ef3241f73ac846e66ad7fc3) and suspend and resume
> > work
> > fine. But as amd-staging-drm-next is still based on linux-5.13 I
> > had to
> > replace the mediatek wlan driver by the version from linux-5.16.
>
> FYI it should likely cherry pick to 5.16 too if it's easier to test
> there.
> I was able to cherry-pick to rc8 no problem.
>
> If you can please try any display hotplugging to make sure hotplugs
> don’t
> cause problems for you as well feel comfortable to add a Tested-by
> tag.
>
> Thanks,

Unfortunately the external HDMI port on my Notebook (Alpha 15 B5EEK/MS-
158L) does not seem to work out-of-the-box. This is a two GPU machine
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi
23 [Radeon RX 6600/6600 XT/6600M] (rev c3)
08:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Cezanne (rev c5)
 The Desktop Environment (gnome with Xorg) is running on the integrated
Cezanne, but when I connect the external HDMI cable I get a dmesg
resume message from the Navi GPU. So this either requires some
additional configuration effort on my part or this is a story for
another bug report.





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