Overlay issues

Cornij, Nikola Nikola.Cornij at amd.com
Mon Feb 22 20:59:08 UTC 2021

[AMD Official Use Only - Approved for External Use]

Hi Simon,

Yes, I did have a chance to wrap this up, indeed :-)

It turned out this and other similar setup was hitting a legit HW limitation. I added a patch (please see attached) that'd fail this config at validation time. The patch has been merged for upstreaming at the beginning of February time-frame, not sure if it made it to the public repo by now.

Please let me know if you need more info on this.



-----Original Message-----
From: Simon Ser <contact at emersion.fr> 
Sent: Friday, February 19, 2021 4:22 PM
To: Cornij, Nikola <Nikola.Cornij at amd.com>
Cc: Alex Deucher <alexdeucher at gmail.com>; Kazlauskas, Nicholas <Nicholas.Kazlauskas at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Wentland, Harry <Harry.Wentland at amd.com>; amd-gfx list <amd-gfx at lists.freedesktop.org>
Subject: RE: Overlay issues


On Wednesday, December 23rd, 2020 at 6:48 AM, Cornij, Nikola <Nikola.Cornij at amd.com> wrote:

> Another interim update: so far to me it looks like this is an issue if 
> there's fewer than 24 pixels left on the screen when moving the FB 
> outside of the left edge (e.g. with 300x300 FB size, it repros with X 
> = -280). When this happens, what looks like a boundary condition in 
> our driver is hit and destination rectangle update is skipped.
> I need to do some more digging to fully understand why is this 
> condition in place and how to avoid it.

Did you have the chance to continue working on this?


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