[Bug 77671] New: radeon system does not boot with 3.14.6 (bisect -> 4740d5c1c89c152ef847e4a479a87a25e763b286)

[Bug 77671] New: radeon system does not boot with 3.14.6 (bisect -> 4740d5c1c89c152ef847e4a479a87a25e763b286)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=77671

            Bug ID: 77671
           Summary: radeon system does not boot with 3.14.6 (bisect ->
                    4740d5c1c89c152ef847e4a479a87a25e763b286)
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.14.6
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: renerietz@gmx.net
        Regression: No

My system does not boot anymore (blank screen, no response, no journal entries
after restart) with kernel 3.14.6. I did a bisect on the linux-stable tree
(3.14.y branch). The last non-working commit was:

commit 4740d5c1c89c152ef847e4a479a87a25e763b286
Author: Alex Deucher <alexdeucher@gmail.com>
Date:   Fri Apr 11 11:21:50 2014 -0400

    drm/radeon: add support for newer mc ucode on CI (v2)

    commit 277babc374f6ecab6af182554f5d9f35a7768755 upstream.

    Fixes mclk stability on certain asics.

    v2: print out mc firmware version used and size

    bug:
    https://bugs.freedesktop.org/show_bug.cgi?id=75992

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


Chipset info from Xorg: RADEON(0): Chipset: "VERDE" (ChipID = 0x683d)

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[Bug 77671] radeon system does not boot with 3.14.6 (bisect -> 4740d5c1c89c152ef847e4a479a87a25e763b286)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=77671

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
This commit requires new microcode in the driver.  You are probably seeing the
firmware loader waiting for a long time for the new microcode to become
available.  Grab the latest radeon microcode from the linux-firmware tree.

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[Bug 77671] radeon system does not boot with 3.14.6 (bisect -> 4740d5c1c89c152ef847e4a479a87a25e763b286)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=77671

René Rietz <renerietz@gmx.net> changed:

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

--- Comment #2 from René Rietz <renerietz@gmx.net> ---
Thanks for the hint! The new kernel firmware fixes the problem.

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