APPLIED[I]: [PATCH 0/1][SRU][U/H/OEM-5.10/OEM-5.13] UBUNTU: SAUCE: AMDGPU: Fix System hang after resume from suspend

[Andrea Righi]

On Tue, Aug 17, 2021 at 11:33:18AM +0800, Koba Ko wrote:
> BugLink: https://bugs.launchpad.net/bugs/1940204
> 
> [Impact]
> With AMD-GPU and don't use it as a display output,
> After multiple Suspend&resume, system would hang.
> 
> [Fix]
> Disable BACO for polaris12 series.
> BACO allow the graphics cards on Linux to support S4 / hibernation support.
> 
> [Test Case]
> 1. Must plug AMD GPU and don't use it as display output
> 2. Plug DP/HDMI on iGPU.
> 3. Suspend&resume machine.
> 4. check if system hangs.
> 
> [Where problems could occur]
> Disable BACO would cause higher power consumption.

Applied to impish/linux 5.13.

Thanks,
-Andrea