[Bug 66241] radeon fails to initialise the monitor

[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alan@lxorguk.ukuu.org.uk
          Component|Video(Other)                |Video(DRI - non Intel)
           Assignee|drivers_video-other@kernel- |drivers_video-dri@kernel-bu
                   |bugs.osdl.org               |gs.osdl.org

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

Alex Deucher <alexdeucher@gmail.com> changed:

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

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Do you have radeon.hw_i2c=1 set somewhere?  If so, it should be fixed by this
commit:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fae009d15a44e5f1d938340facf4b8bc7dc69a09

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

--- Comment #3 from Chris Rankin <rankincj@yahoo.com> ---
Created attachment 117291
  --> https://bugzilla.kernel.org/attachment.cgi?id=117291&action=edit
dmesg output when radeon.hw_i2c=0

I do have hw_i2c=1 in my /etc/modprobe.d/local.conf file, but the patch does
not help. However, I am able to boot when I add radeon.hw_i2c=0 to the grub
command line.

dmesg output is attached.

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 117321
  --> https://bugzilla.kernel.org/attachment.cgi?id=117321&action=edit
possible fix

Does the attached patch help?

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

--- Comment #5 from Chris Rankin <rankincj@yahoo.com> ---
Created attachment 117331
  --> https://bugzilla.kernel.org/attachment.cgi?id=117331&action=edit
dmesg output with 2nd patch applied

No, the additional patch did not help.

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #117321|0                           |1
        is obsolete|                            |

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 117461
  --> https://bugzilla.kernel.org/attachment.cgi?id=117461&action=edit
possible fix

Does this patch work any better?

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

--- Comment #7 from Chris Rankin <rankincj@yahoo.com> ---
Created attachment 117501
  --> https://bugzilla.kernel.org/attachment.cgi?id=117501&action=edit
dmesg output from 3.12.3 + 3rd patch

I have just updated a second system from 3.11.10 to 3.12.3. This new system
also experienced this bug, and the 3rd patch fixes it :-).

I will test the 3rd patch on the other system next.

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

--- Comment #8 from Chris Rankin <rankincj@yahoo.com> ---
Created attachment 117511
  --> https://bugzilla.kernel.org/attachment.cgi?id=117511&action=edit
dmesg output from 3.12.3 + 3rd patch; original system

The 3rd patch allows my original system to boot 3.12.3 as well.

dmesg output is attached.

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[Bug 66241] radeon fails to initialise the monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=66241

Chris Rankin <rankincj@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|3.12.2                      |3.12.2,3.12.3

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