[Bug 80331] [BISECTED]Radeon driver broken in kernel 3.12.15 onwards for ATI Radeon HD4770 Card

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=80331

--- Comment #10 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to Colin from comment #9)
> but it was you that said it always failed to load so I am getting confused
> now.
> 
> It is not to do with X  because the problem shows up in plain text mode as
> well before X is ever loaded. With the patch installed it won't load any
> fonts other than the default one when it is booting. With the patch removed
> it will with no other changes.
> 
> If I undo the patch and make no other changes what so ever it works correctly
> 
> If I compile the driver as a module it with no other changes what so ever it
> works correctly.
> 
> If I apply the patch and compile the kernel with the driver statically
> linked but no other changes what so ever it works correctly.
> 
> I don't see how it can be my setup when the only change to make it work or
> break is that patch.

I was referring to your setup.  All the patch does it move the firmware loading
earlier in the driver init process.  So if the firmware loading fails with the
patch applied, it should also fail without it asuming everything else is the
same in your setup.  Something is wrong with your local configuration such that
the firmware is not availabl at driver load in some cases.  The firmware is
required to use acceleration in the driver.

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