On 8/28/2024 11:14, Alex Deucher wrote:
On Wed, Aug 28, 2024 at 11:47 AM WangYuli <wangyuli@xxxxxxxxxxxxx> wrote:
On 2024/8/28 23:30, Alex Deucher wrote:
On Wed, Aug 28, 2024 at 7:28 AM WangYuli <wangyuli@xxxxxxxxxxxxx> wrote:
This will disable dpm on all devices that you might install on this
platform. If this is specific to a particular platform and board
combination, it might be better to check the platform in the
dpm_init() code for the specific chip that is problematic.
Additionally, disabling dpm will result in boot clocks which means
performance will be very low.
Alex
This motherboard model doesn't have combinations with different
platforms or chipsets now.Their model numbers are unique,so it seems
unnecessary to add extra judgment.
The error message looks to be from an SI board which is a dGPU. Is
that dGPU integrated into the motherboard? Does the motherboard have
PCIe slots? If there are PCIe slots you could presumably put any GPU
into it and if you did, dpm would be disabled by default.
Alex
I would also then question whether the SI board also has failures in
other systems. If notit could point at BIOS bugs with the PCIe
implementation from the MB.
One thing that you can try to do is turn off pcie port pm using the
kernel command line and see if things improve. Some motherboards have
had issues with this in the past.
