On 2018-03-07 17:48, KARBOWSKI Piotr wrote:
On 2018-03-07 17:14, Harry Wentland wrote:
Pushed a drm-fixes-4.16 branch (based on Alex's) to my FDO repo
athttps://cgit.freedesktop.org/~hwentland/linux/ but I don't have a
Raven system setup to test this at the moment.
Tom, or Piotr, would you be able to check that the fix works as
intended on that branch?
Tested that branch, confirmed that the VGA patch is there but I got the
original result of broken video. Rebooted few times. It seems that my
issue was not the VGA turnover afterall. I will re-test it with vanilla
amd-staging-drm-next of git://people.freedesktop.org/~agd5f/linux
without the VGA patch and update you.
I re-tested original tree of git://people.freedesktop.org/~agd5f/linux
on branch amd-staging-drm-next and got the 'double screen' glitches,
then I applied the patch Tom sent me as the very first response to this
thread and then it indeed fixed it. So the VGA takeover patch is needed
it, it seems.
I triple checked and build the images and the drm-fixes-4.16 of
git://people.freedesktop.org/~hwentland/linux does not fix the problem
for me.
So far only amd-staging-drm-next with
0001-drm-amd-display-Fix-takeover-from-VGA-mode.patch does the trick.
One thing worth note is that the amd-staging-drm-next goes as `rc1`
where yours fork Harry appears to be rc3, no idea if it's related or not.
-- Piotr.
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