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

[Thibault Ferrante]

On 11/08/2025 10:59, En-Wei Wu wrote:
> 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
A fix commit upstream is targeting this commit: '2d418e4fd9f1 drm/amd/display: Allow DCN301 to clear update flags'
Please include it.
> 
>    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(-)
>