Re: [REGRESSION] Graphical issues on Lenovo Yoga 7 14ARB7 laptop since v6.0-rc1 (bisected)

[Leo Li]

Hi August,

I've sent a fix here: https://patchwork.freedesktop.org/patch/504993/

It's not the most ideal fix, but it should address the regression. Let 
me know it works for you.

Thanks!
Leo

On 2022-09-27 10:22, August Wikerfors wrote:
> Hi Leo,
>
> On 2022-09-27 00:29, Leo Li wrote:
> > Hi August, thanks for the log.
> >
> > It seems the eDP panel does not fully satisfy the amdgpu requirements
> > for enabling PSR SU, but we're enabling it anyways.
> >
> > I suspect it may be due to the "DP_FORCE_PSRSU_CAPABILITY" bit being set
> > in it's DPCD registers, I'm checking with some devs to see if that is
> > expected.
> >
> > In the meantime, can you give these two hacks a spin? Let me know if
> > this helps with the glitches and system hangs:
> > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2F-%2Fsnippets%2F7076&data=05%7C01%7Csunpeng.li%40amd.com%7Ca5864225840b4bbbd04c08daa093bb26%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637998853607058272%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=cNAK%2FMhWCGwXySpITTTvKtzXQ7WCEQL4DYSrPKzWSkY%3D&reserved=0
> Yes, the issues do not happen with those patches applied.
>
> > Also the dmesg, in particular this line:
> > > [drm] PSR support 1, DC PSR ver 1, sink PSR ver 3 DPCD caps 
> > > 0x70su_y_granularity 4 force_psrsu_cap **X**
> Here is that line:
> > [   12.085196] [drm] PSR support 1, DC PSR ver 1, sink PSR ver 3 DPCD 
> > caps 0x7b su_y_granularity 4 force_psrsu_cap 1
>
> Regards,
> August Wikerfors