linux-kernel - Re: [Intel-gfx] [PATCH] drm/i915: don't check inconsistent modeset state when force-restoring

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]

Date:	Thu, 11 Apr 2013 20:37:27 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Daniel Vetter <daniel@...ll.ch>
Cc:	Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
	DRI Development <dri-devel@...ts.freedesktop.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Airlie <airlied@...il.com>,
	Tomas Melin <tomas.melin@....fi>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	stable <stable@...r.kernel.org>
Subject: Re: [Intel-gfx] [PATCH] drm/i915: don't check inconsistent modeset
 state when force-restoring

On Thu, Apr 11, 2013 at 08:14:10PM +0200, Daniel Vetter wrote:
> 
> I've just tracked down and fixed an bug which can lead to a hard-hang
> in the crtc restore code (which is used both in the lid handler when
> opening and on resume). If you could please test this patch (on top of
> drm-intel-nightly):
> 
> https://patchwork.kernel.org/patch/2428971/

Okay, will do.

> >> I'll quickly port the patch (in it's latest v3 version) to 3.9-rc
> >> kernels for you to test.

FWIW, this does work, no freeze, no warning, but instead:

Apr 11 20:30:49 netboy laptop-mode: Laptop mode 
Apr 11 20:30:49 netboy laptop-mode: enabled, 
Apr 11 20:30:49 netboy laptop-mode: not active [unchanged]
Apr 11 20:30:53 netboy kernel: [   75.450783] [drm:i9xx_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Apr 11 20:30:53 netboy laptop-mode: Laptop mode 
Apr 11 20:30:53 netboy laptop-mode: enabled, 
Apr 11 20:30:53 netboy laptop-mode: not active [unchanged]

Thanks,
Richard
--
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/