ACK/Cmnt: [SRU][M][PATCH 0/1] The display becomes frozen after some time when a HDMI device is connected

[Stefan Bader]

On 31.01.24 15:04, Roxana Nicolescu wrote:
> 
> On 31/01/2024 14:55, Thibault Ferrante wrote:
>> On 31-01-2024 11:46, Roxana Nicolescu wrote:
>>> BugLink: https://bugs.launchpad.net/bugs/2049027
>>>
>>> SRU Justification:
>>>
>>> [Impact]
>>>
>>> Multiple users have reported frozen displays when external HDMI device
>>> is connected on systems with intel graphics chipsets.
>>>
>>> [Fix]
>>>
>>> * backport 49e0a85ec344: "drm/i915/dmc: Don't enable any pipe DMC 
>>> events"
>>> from 6.6.9
>>>
>>> [Test Plan]
>>>
>>> * Tested on Intel TigerLake with iris Xe Graphics and no issues so far.
>>> It seems it affects mostly Alder Lake though, but at least it does not
>>> cause any issues on other models.
>>> * It has also been tested upstream 
>>> https://gitlab.freedesktop.org/drm/intel/-/issues/8685
>>>
>>> [Where problems could occur]
>>> * We could see issues on systems with Intel Graphics when HDMI devices
>>> are connected during power state changes.
>>>
>>> Ville Syrjälä (1):
>>>    drm/i915/dmc: Don't enable any pipe DMC events
>>>
>>>   drivers/gpu/drm/i915/display/intel_dmc.c | 43 ++++++++++++++++++++++--
>>>   1 file changed, 41 insertions(+), 2 deletions(-)
>>>
>>
>> Is there a specific reason to cherry-pick the already cherry-picked 
>> commit ?
>>
>> Acked-by: Thibault Ferrante <thibault.ferrante at canonical.com>
>>
>> -- 
>> Thibault
>>
> I cherry picked the wrong commit. I'll fix it when applying it. Thanks 
> for spotting this.
> 

Actually I think this is correct. Just that the first cherry picked is 
already the way it is in upstream Linus...

-- 
- Stefan

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