https://bugs.freedesktop.org/show_bug.cgi?id=108542

--- Comment #1 from Nicholas Kazlauskas nicholas.kazlauskas@amd.com --- Thanks for the bisection.

Would you mind posting a full dmesg log for your 4.18.8 kernel?

https://bugs.freedesktop.org/show_bug.cgi?id=108542

--- Comment #3 from davide26079@gmail.com --- (In reply to Nicholas Kazlauskas from comment #1)

Thanks for the bisection.

Would you mind posting a full dmesg log for your 4.18.8 kernel?

done. Dunno if that's what you asked for, I am just a newbie...

I did start bisecting the second issue as well, but my free time is limited. I think I'll finish this weekend though.

May I hope to get things fixed in a few weeks?

https://bugs.freedesktop.org/show_bug.cgi?id=108542

--- Comment #5 from davide26079@gmail.com ---

The log you posted should be sufficient. I'm not sure about a timeline for a fix, however.

Couldn't you just reverse the commits ?

I did complete the bisection btw:

691f2d763d0731224439686ecf2d440df8fe910e is the first bad commit commit 691f2d763d0731224439686ecf2d440df8fe910e Author: Mikita Lipski mikita.lipski@amd.com Date: Fri Jul 13 09:07:35 2018 -0400

drm/amd/display: update clk for various HDMI color depths

commit 81aca8e75c1b046865fb2badef95a0dcff6f73de upstream.

[why] When programming tonga's connector's backend we didn't take in account that HDMI's colour depth might be more than 8bpc therefore we need to add a switch statement that would adjust the pixel clock accordingly.

[how] Add a switch statement updating clock by its appropriate coefficient.

Signed-off-by: Mikita Lipski mikita.lipski@amd.com Reviewed-by: Charlene Liu Charlene.Liu@amd.com Acked-by: Bhawanpreet Lakha Bhawanpreet.Lakha@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

:040000 040000 ef9f989910439dc8749f1440863e3e26646d5fa1 c9ae9b8a137f9ef9d62147fcc28ea25fc4ffbc1e M drivers

https://bugs.freedesktop.org/show_bug.cgi?id=108542

--- Comment #7 from Nicholas Kazlauskas nicholas.kazlauskas@amd.com --- Created attachment 142278 --> https://bugs.freedesktop.org/attachment.cgi?id=142278&action=edit 0001-Fix-unsigned-short-unsigned-long-mixup-for-usSymCloc.patch

Does applying this patch help?

Try this on top of the tree without reverting the other patches.

https://bugs.freedesktop.org/show_bug.cgi?id=108542

--- Comment #9 from Nicholas Kazlauskas nicholas.kazlauskas@amd.com --- The patchset from:

https://patchwork.freedesktop.org/patch/260799/

...will likely resolve this issue.

It has been merged into amd-staging-drm-next branch at:

https://cgit.freedesktop.org/~agd5f/linux

https://bugs.freedesktop.org/show_bug.cgi?id=108542

Martin Peres martin.peres@free.fr changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |MOVED

--- Comment #11 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/568.