[REGRESSION][BISECTED] 58a261bfc967: choppy GPU performance

[Mario Limonciello]

On 10/1/2024 15:07, Leo Li wrote:
> 
> 
> 
> On 2024-10-01 15:10, Mario Limonciello wrote:
>> On 10/1/2024 14:09, John Rowley wrote:
>>> I was using power-profiles-daemon version 0.23 in balanced mode.
>>>
>>> I also tested TLP, and vanilla kernel without any power daemons 
>>> running. Without any daemons I use the following:
>>>
>>>      energy_performance_preference: balance_power
>>>
>>>      scaling_driver: amd-pstate-epp
>>>
>>>      scaling_governor: powersave
>>>
>>
>> Thanks as long as it can reproduce in 'balanced' mode that should 
>> exclude PPD from being the cause and it most likely a pure kernel bug.
>>
> 
> I'm curious if you have a PSR supported panel. Does setting
> amdgpu.dcdebugmask=0x10 on your kernel cmdline help? This force disables 
> PSR.
> 
> Another flag to try is amdgpu.dcdebugmask=0x800, which allows PSR but 
> disables
> idle power optimizations. I wonder if that may be causing extra latency.
> 
> - Leo

Do you have the "new" 2.8k high res panel on your Framework 13?  If so; 
can you please check your logs to see if PSR is even getting enabled?

IE it might be enabling panel replay which is new to enable again in 
6.12-rc1, and if so; this could be where the issue is too.

The lower res display shouldn't support it.