ACK: [SRU][Q:unstable][PATCH 0/1] Call trace occurs when unplugging a HDMI/DP/VGA cable on Dell platforms

[Zixing Liu]

> From: En-Wei Wu <en-wei.wu at canonical.com>
> To: kernel-team at lists.ubuntu.com
> Subject: [SRU][Q:unstable][PATCH 0/1] Call trace occurs when
>         unplugging a HDMI/DP/VGA cable on Dell platforms
> Message-ID: <20250811085757.25415-1-en-wei.wu at canonical.com>
>
> BugLink: https://bugs.launchpad.net/bugs/2116908
>
> [Impact]
> On Dell platforms using either Linux 6.11.0-1021-oem or 6.14.0-1005-oem,
> we observed call traces when unplugging a HDMI/DP/VGA cable from an
> external monitor.
>
> [Fix]
>   Cherry-pick the following patch from the mainline:
>
>   f354556e29f4 drm/amd/display: limit clear_update_flags to dcn32 and
>   above
>
>   Here is the reference for the full patchset:
>
>   Link:
>   https://lore.kernel.org/amd-gfx/20250710212941.630259-7-IVAN.LIPSKI@amd.com/
>
>   [Test Plan]
>   1. Boot into an Ubuntu OS
>   2. Connect a HDMI/DP/VGA cable into an external monitor
>   3. Check whether a call trace appears
>
>   [Where problems could occur]
>   This patch changes the behavior of AMD GPUs with DCN version lower
>   than 3.2. It might cause regression on these GPUs.
>
> Charlene Liu (1):
>   drm/amd/display: limit clear_update_flags to dcn32 and above
>
>  drivers/gpu/drm/amd/display/dc/core/dc.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> --
> 2.43.0
>

Acked-by: Zixing Liu <zixing.liu at canonical.com>