[3.2.y] Re: [PATCH] drm/i915: mask transcoder select bits before setting them on LVDS

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Hi Greg,

Keith Packard wrote:
> On Thu, 12 Jan 2012 14:51:17 -0800, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

>> The transcoder port may changed from mode set to mode set, so make sure
>> to mask out the selection bits before setting the right ones or we'll
>> get black screens when going from transcoder B to A.
>
> Reviewed-by: Keith Packard <keithp at keithp.com>
>
> Merged:
>    a190d70..7885d20  drm-intel-fixes -> drm-intel-fixes

Please queue

	7885d2052bd9 drm/i915: mask transcoder select bits before
	             setting them on LVDS, 2012-01-12

for inclusion in the 3.2.y tree.  Bisects[1] to v3.2-rc1~135^2~2^2~17
("drm/i915: add PLL sharing support to handle 3 pipes") so 3.1.y and
earlier are not affected.  Fixed between v3.3-rc1 and -rc2 so 3.3.y is
not affected, either.

Jakob (cc-ed) confirmed[2] that the patch helps.

The author acked it for inclusion in stable[3].

Thanks,
Jonathan

[1] http://lists.freedesktop.org/archives/intel-gfx/2012-January/014316.html
[2] http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=65;bug=660394
[3] http://thread.gmane.org/gmane.linux.ubuntu.bugs.general/3173872/focus=3189969


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