linux-kernel - Re: Baytrail/T (ASUS T100 etc) regression from 3.13 onwards

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Message-ID: <20140211163541.GB12567@kroah.com>
Date:	Tue, 11 Feb 2014 08:35:41 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	jbarnes@...tuousgeek.org
Subject: Re: Baytrail/T (ASUS T100 etc) regression from 3.13 onwards

On Tue, Feb 11, 2014 at 02:22:03PM +0000, One Thousand Gnomes wrote:
> On Tue, 14 Jan 2014 12:01:03 +0000
> One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> wrote:
> 
> > On Sun, 12 Jan 2014 20:33:03 +0700
> > Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> > 
> > > Another week, another RC. And things look fine.
> > 
> > It seems to hate Baytrail/T
> > 
> > My ASUS T100TA has gone from 3.11 'needs video=VGA-1:blah' to get the mode
> > right but otherwise running nicely and playing 3D games to 3.13-rc8
> 
> This has now been pinned down to (confirmed by multiple people)
> 
> commit 6c4a8962a4a078cacfc8eb5d4bd79f6343b8cd7a
> Author: Jesse Barnes <jbarnes@...tuousgeek.org>
> Date:   Tue Sep 10 14:54:42 2013 -0700
> 
>     drm/i915/vlv: re-enable hotplug detect based probing on VLV/BYT
> 
> 
> which given this is affecting some of the top 10 Amazon selling new
> laptops and has not been fixed for 3.14-rc should IMHO be reverted until
> such time as any needed debugging for the MIPI panels is done for this
> driver and the hotplug probing doesn't break the workarounds.
> 
> Likewise it wants pulling from any -stable backports.

I only see it in the 3.13 tree, so when this gets reverted in Linus's
tree, can someone mark it for stable so I know to pick it up for
3.13-stable as well?

thanks,

greg k-h
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