linux-kernel - Re: Regression with i915 and suspend on Thinkpad x220

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1306078089.4204.1.camel@calx>
Date:	Sun, 22 May 2011 10:28:09 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Keith Packard <keithp@...thp.com>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Regression with i915 and suspend on Thinkpad x220

On Sat, 2011-05-21 at 23:23 -0700, Keith Packard wrote:
> On Sat, 21 May 2011 23:55:57 -0500, Matt Mackall <mpm@...enic.com> wrote:
> 
> > I've got a new Thinkpad x220 which won't wake up from suspend with
> > 2.6.39, but works fine with 2.6.37.
> > 
> > I bisected it down to this cset:
> > 
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4efe070896e1f7373c98a13713e659d1f5dee52a
> > 
> > drm/i915: make the blitter report buffer modifications to the FBC unit
> 
> For now, you should be able to disable FBC:
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index c34a8dd..2a82895 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -183,7 +183,7 @@ static const struct intel_device_info intel_sandybridge_d_info = {
>  static const struct intel_device_info intel_sandybridge_m_info = {
>  	.gen = 6, .is_mobile = 1,
>  	.need_gfx_hws = 1, .has_hotplug = 1,
> -	.has_fbc = 1,
> +	.has_fbc = 0,
>  	.has_bsd_ring = 1,
>  	.has_blt_ring = 1,
>  };

Appears to work, thanks.

-- 
Mathematics is the supreme nostalgia of our time.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/