[Bug 99181] RS780 blank screen on boot

[Bug 99181] RS780 blank screen on boot

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

            Bug ID: 99181
           Summary: RS780 blank screen on boot
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: chithanh@gentoo.org

Hardware: BIOSTAR A780L

When booting with 3.15 or newer kernels, a monitor connected to the DVI port of
the BIOSTAR A780L will stay blank.
Kernel 3.14 and older work fine.

I tried forcing the output to on with video=HDMI-A-1:e but this made no
difference.

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[Bug 99181] RS780 blank screen on boot

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

--- Comment #1 from Chí-Thanh Christopher Nguyễn <chithanh@gentoo.org> ---
Created attachment 128629
  --> https://bugs.freedesktop.org/attachment.cgi?id=128629&action=edit
dmesg from kernel 3.14 with drm.debug=15 (working)

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[Bug 99181] RS780 blank screen on boot

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

--- Comment #2 from Chí-Thanh Christopher Nguyễn <chithanh@gentoo.org> ---
Created attachment 128630
  --> https://bugs.freedesktop.org/attachment.cgi?id=128630&action=edit
dmesg from kernel 4.9 with drm.debug=15 (not working)

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[Bug 99181] RS780 blank screen on boot

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

Chí-Thanh Christopher Nguyễn <chithanh@gentoo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugzilla.kernel.org
                   |                            |/show_bug.cgi?id=91861

--- Comment #3 from Chí-Thanh Christopher Nguyễn <chithanh@gentoo.org> ---
https://bugzilla.kernel.org/show_bug.cgi?id=91861 seems to be related, however
this issue still happens with kernel 4.9

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[Bug 99181] RS780 blank screen on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

Christopher M. Penalver <christopher.m.penalver@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://bugs.launchpad.net/
                   |                            |ubuntu/+source/linux/+bug/1
                   |                            |651910
         QA Contact|                            |christopher.m.penalver@gmai
                   |                            |l.com
                 CC|                            |christopher.m.penalver@gmai
                   |                            |l.com
           Hardware|Other                       |x86-64 (AMD64)
             Status|NEW                         |NEEDINFO

--- Comment #4 from Christopher M. Penalver <christopher.m.penalver@gmail.com> ---
Commit bisect requested in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651910/comments/25 .

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[Bug 99181] RS780 blank screen on boot

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99181

Martin Peres <martin.peres@free.fr> changed:

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

--- Comment #5 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/766.

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