[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

            Bug ID: 106193
           Summary: When positioning a monitor output above or below
                    initial configuration with xrandr, hard freeze with
                    graphics artifacts 4.16.2+
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: sass.joel@gmail.com

I'm unable to position my monitors outside of an inline configuration. I have 5
monitors, and if I try to position one outside of an inline configuration with
xrandr, it results in a hard lock.

Steps to replicate the process:

$ xrandr --fb 7680x2160

  xrandr --screen 0 output shows that the virtual desktop is set to 7680x2160

$ xrandr --output DP-6 --pos 0x1080

At that point, mouse and keyboard become unresponsive. After about 30 seconds,
monitor output shows artifacting. I'll see if I can post an image of what I
see.

It appears this also causes all network activity to stop. The system cannot be
pinged, and SSH server stops functioning. Seems to have the same issues as
https://bugs.freedesktop.org/show_bug.cgi?id=106159 which freezes the system
when connecting or disconnecting a displayport cable.

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #1 from Joel Sass <sass.joel@gmail.com> ---
Created attachment 139012
  --> https://bugs.freedesktop.org/attachment.cgi?id=139012&action=edit
A picture of the monitor output on failure.

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #2 from Harry Wentland <harry.wentland@amd.com> ---
Created attachment 139013
  --> https://bugs.freedesktop.org/attachment.cgi?id=139013&action=edit
[PATCH] drm/amd/display: Disallow enabling CRTC without primary plane with FB

Does this help?

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #3 from Harry Wentland <harry.wentland@amd.com> ---
If the patch doesn't help are you able to capture the dmesg log and post it?

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #4 from Joel Sass <sass.joel@gmail.com> ---
Hey Harry,

Thanks for your help.

Should I be using my current kernel, or just download the newest source to
apply these patches against?

Some of the other patches didn't really have the context useful to patch
against, and I am not sure if these kernels will have the amdgpu.dc kernel
switches.

Thanks!

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #5 from Harry Wentland <harry.wentland@amd.com> ---
I recommend using drm-next-4.18-wip from Alex's tree:
https://cgit.freedesktop.org/~agd5f/linux/?h=amd-staging-drm-next

git clone git://people.freedesktop.org/~agd5f/linux
cd linux
git checkout drm-next-4.18-wip

The patch should land on that branch in a couple days.

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #6 from Joel Sass <sass.joel@gmail.com> ---
Harry,

as I had mentioned here https://bugs.freedesktop.org/show_bug.cgi?id=106159 I
had to manually apply the patches you'd given me, so I'm including the diff
here as well. This has both of the patches in it, so I figured I'd attach it to
this bug as well.

Thanks!

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #7 from Joel Sass <sass.joel@gmail.com> ---
Created attachment 139102
  --> https://bugs.freedesktop.org/attachment.cgi?id=139102&action=edit
amdgpu_dm.c patch I had to manually apply

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #8 from Harry Wentland <harry.wentland@amd.com> ---
Hi Joel,

does the patch fix the issue?

Thanks for your bug report and testing.

Harry

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

Joel Sass <sass.joel@gmail.com> changed:

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

--- Comment #9 from Joel Sass <sass.joel@gmail.com> ---
I can confirm the patch fixed the issue. I installed drm-next-4.17 from
git://people.freedesktop.org/~agd5f/linux and the problem is solved.

Good work, and thanks!

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[Bug 106193] When positioning a monitor output above or below initial configuration with xrandr, hard freeze with graphics artifacts 4.16.2+

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https://bugs.freedesktop.org/show_bug.cgi?id=106193

--- Comment #10 from Harry Wentland <harry.wentland@amd.com> ---
Thanks for reporting, testing, and quick feedback. It's greatly appreciated.

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