Ryzen 5 2400g - colors/contrast messed up on amd-staging-drm-next and drm-next-4.17-wip

[Hubert Łępicki]

Hey,

so there appears to be some progress as of today's build of
amd-staging-drm-next branch. The system I use has 2 external displays,
identical, one connected over HDMI another over DVI.

Currently:

1. Just after the boot, gamma settings on DVI-connected one are messed
up (is this HDR mode?). The settings on the other display, connected
over HDMI seem fine.

2. I use Gnome/Ubuntu 18.04, when I enable "Night mode" (i.e. f-lux
for Linux thing), it fixes the issue for DVI-connected display. The
fix also works after I disable "Night mode".

Hope that helps :)

Hubert Łępicki

2018-03-08 15:28 GMT+01:00 Deucher, Alexander <Alexander.Deucher at amd.com>:
> + Harry, Leo
>
>
> I saw this as well with tonga.  It seems to be related to the CTM/regamma
> changes.
>
>
> Alex
>
> ________________________________
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Hubert
> Łępicki <hubert.lepicki at gmail.com>
> Sent: Thursday, March 8, 2018 7:03:06 AM
> To: amd-gfx at lists.freedesktop.org
> Subject: Ryzen 5 2400g - colors/contrast messed up on amd-staging-drm-next
> and drm-next-4.17-wip
>
> Hey,
>
> I was giving a shot your work in progress branch for the AMDGPU
> driver, hoping maybe it brings some fixes to Ryzen 5 2400g. It does
> not look like it, but I might have discovered a bug (or you may be
> well aware of it since it's work in progress...). Either way, just to
> let you know:
>
> Graphics is sort of messed up on drm-next-4.17-wip and
> amd-staging-drm-next branches on my Ryzen 5 2400g. I am attaching
> screenshots.
>
> Correct colors/contrast on Ubuntu 18.04 / stock 4.15 kernel:
> https://photos.app.goo.gl/3IXkgOXh955vygff2
> https://photos.app.goo.gl/rD2aw7jvO6cbbTLh2
> https://photos.app.goo.gl/3IXkgOXh955vygff2
> https://photos.app.goo.gl/xLYC9N7drU687L8o2
>
> Incorrect colors/contrast on Ubuntu 18.04 / amd-staging-drm-next branch:
> https://photos.app.goo.gl/nDXM7LFgnkRDMtoh1
> https://photos.app.goo.gl/aG94pY4o4L1zaLAj2
> https://photos.app.goo.gl/FogNie21obF9w0ek2
> https://photos.app.goo.gl/PHiQ9Npgo24DnoDD2
>
>
> These are photos taken with a phone camera, as on any captured
> screenshots everything is fine.
>
> I can provide better / detailed photos if you need me to.
>
> This has been observed on Ubuntu 18.04, and Arch Linux, Gigabyte
> AB350m-gaming3, Ryzen 5 2400g, on both Wayland and Xorg.
>
> Hope that helps,
> All the best,
> Hubert Łepicki
>
> --
> Pozdrawiam,
> Hubert Łępicki
>  -----------------------------------------------
> [ http://hubertlepicki.com ]
> _______________________________________________
> amd-gfx mailing list
> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx



-- 
Pozdrawiam,
Hubert Łępicki
 -----------------------------------------------
[ http://hubertlepicki.com ]