Hi Greg,
I'll can try reverting that patch, and check.
This hardware has been stable with all kernels from around 5.11 up to
and including 5.15.
Cheers,
Mark
On 10/11/2021 17:38, Greg KH wrote:
On Wed, Nov 10, 2021 at 04:27:39PM +0000, Mark Boddington wrote:
Hi all,
I run the mainline Linux kernel on Ubuntu 20.04, built from
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.1/
There appears to be a regression in 5.15.1 which causes the GPU to fail to
resume after power saving.
Could it be this change??:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c?h=v5.15.1&id=8af3a335b5531ca3df0920b1cca43e456cd110ad
If you revert it, does it solve the problem for you?
If not, what kernel version did work for you with this hardware?
thanks,
greg k-h
