[Bug 56561] New: kernel > 3.4.7 breaks KMS on rv515 (r300)

[Bug 56561] New: kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

          Priority: medium
            Bug ID: 56561
          Assignee: dri-devel@lists.freedesktop.org
           Summary: kernel > 3.4.7 breaks KMS on rv515 (r300)
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: inaudible@simplesuperlativ.es
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

I performed a system update (arch linux) but have experienced issues with KMS
on any kernel past 3.4.7 (all of 3.5 up till the current 3.6.3). The boot
sequence stalls at the point where the KMS hooks usually kick in and referesh
the screen. I can make the kernel boot with 'nomodeset' option.

https://bugs.freedesktop.org/show_bug.cgi?id=54662 looks similar, but the none
of the 3.6 kernels i've tried resove this issue.

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #1 from dmotd <inaudible@simplesuperlativ.es> ---
I'm not sure how to provide debugging info for this problem, the boot just
stalls at the point of starting KMS, a blinking cursor is active but nothing
loads beyond this point, there are no errors printed to screen and there are no
logs saved from the failed session.

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #2 from dmotd <inaudible@simplesuperlativ.es> ---
Created attachment 69269
  --> https://bugs.freedesktop.org/attachment.cgi?id=69269&action=edit
dmesg - successful boot kernel 3.4.7

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #3 from dmotd <inaudible@simplesuperlativ.es> ---
Created attachment 69270
  --> https://bugs.freedesktop.org/attachment.cgi?id=69270&action=edit
Xorg.0.log - successful boot kernel 3.4.7

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #4 from dmotd <inaudible@simplesuperlativ.es> ---
Created attachment 69271
  --> https://bugs.freedesktop.org/attachment.cgi?id=69271&action=edit
dmesg - failing kernel 3.6.3 running with 'nomodeset'

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #5 from dmotd <inaudible@simplesuperlativ.es> ---
Created attachment 69272
  --> https://bugs.freedesktop.org/attachment.cgi?id=69272&action=edit
Xorg.0.log - failing kernel 3.6.3 running with 'nomodeset'

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
Do newer kernels work without radeon driver options on the kernel command line,
in particular without radeon.msi=0?

If not, can you bisect which kernel change introduced the problem?

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #7 from Alex Deucher <agd5f@yahoo.com> ---
Make sure you have the radeon firmware installed and available in your initrd
if you are using one.

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #8 from dmotd <inaudible@simplesuperlativ.es> ---
(In reply to comment #6)
> Do newer kernels work without radeon driver options on the kernel command
> line, in particular without radeon.msi=0?
> 
> If not, can you bisect which kernel change introduced the problem?

The kernel command line options do not effect the later kernels.

I will need some spare time to bisect, although this bug report looks to be
relevant,
--
 https://bugzilla.redhat.com/show_bug.cgi?id=845745
--
user 'Richard Gration' is running the exact same laptop setup as here and
experiencing identical issues.

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #9 from dmotd <inaudible@simplesuperlativ.es> ---
(In reply to comment #7)
> Make sure you have the radeon firmware installed and available in your
> initrd if you are using one.


The firmware should be loading (I am using stock arch linux kernels), when
3.4.7 or 3.6.3-nomodeset boots I see '[drm] Loading R500 Microcode' in the
logs. (Sorry I wrote r300 in the bug title which should be r500).

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

--- Comment #10 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #9)
> The firmware should be loading (I am using stock arch linux kernels), when
> 3.4.7 or 3.6.3-nomodeset boots I see '[drm] Loading R500 Microcode' in the
> logs. (Sorry I wrote r300 in the bug title which should be r500).

The ums driver loads later (when the filesystem is available).  If there is no
firmware in your initrd, the kernel firmware loader will wait several minutes
to timeout before continuing.  Can you boot into a non-X runlevel with
nomodeset and then try and modprobe radeon manually from the console?

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[Bug 56561] kernel > 3.4.7 breaks KMS on rv515 (r300)

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https://bugs.freedesktop.org/show_bug.cgi?id=56561

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

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

--- 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/309.

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