stable: 2124b72e6283c4e84a55e71077fee91793f4c801 need backport

[Shuduo Sang]

On Thu, Oct 17, 2013 at 11:58 PM, Kamal Mostafa <kamal at canonical.com> wrote:
> On Wed, 2013-10-16 at 14:15 +0800, Shuduo Sang wrote:
>> On Wed, Oct 16, 2013 at 2:27 AM, Greg KH <gregkh at linuxfoundation.org> wrote:
>> > On Tue, Oct 15, 2013 at 07:24:38PM +0800, Shuduo Sang wrote:
>> >> This commit be merged into v3.9-rc5. Without this patch, the
>> >> DisplayPort menu entry will not show up in sound setting when plug
>> >> cable or not automatically disappear when unplug.
>> >
>> > Ok, but what stable tree do you want this patch applied to?
>> >
>>
>> I hope at least 3.8 stable tree would like to backport this patch
>> since the patch be merged into v3.9-rc5 and v3.8 is used widely. Loop
>> kernel-team at lists.ubuntu.com.
>>
>
> Hi Shuduo-
>
> Yes, I could backport and apply 2124b72 "drm/i915: don't disable the
> power well yet" to 3.8-stable, but that commit says:
>
>     This fixes problems caused by the following commit:
>       commit d6dd9eb1d96d2b7345fe4664066c2b7ed86da898
>       Author: Daniel Vetter <daniel.vetter at ffwll.ch>
>       Date:   Tue Jan 29 16:35:20 2013 -0200
>            drm/i915: dynamic Haswell display power well support
>
> But 3.8-stable doesn't include d6dd9eb.   Is 2124b72 actually necessary
> in 3.8?  (Or at least, would it actually be useful?)
>

I think so. Thanks.

> Thanks,
>
>  -Kamal
>