linux-kernel - Re: [PATCH 3.16.y-ckt 072/104] drm/radeon: Restore LCD backlight level on resume (>= R5xx)

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:	Tue, 27 Oct 2015 11:10:29 +0900
From:	Michel Dänzer <michel@...nzer.net>
To:	Luis Henriques <luis.henriques@...onical.com>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com,
	Alex Deucher <alexander.deucher@....com>
Subject: Re: [PATCH 3.16.y-ckt 072/104] drm/radeon: Restore LCD backlight
 level on resume (>= R5xx)

On 26.10.2015 22:42, Luis Henriques wrote:
> 3.16.7-ckt19 -stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: =TF-8?q?Michel Dänzer?= <michel.daenzer@....com>
> 
> commit 4281f46ef839050d2ef60348f661eb463c21cc2e upstream.
> 
> Instead of only enabling the backlight (which seems to set it to max
> brightness), just re-set the current backlight level, which also takes
> care of enabling the backlight if necessary.
> 
> Only the radeon_atom_encoder_dpms_dig part tested on a Kaveri laptop,
> the radeon_atom_encoder_dpms_avivo part is only compile tested.
> 
> Signed-off-by: Michel Dänzer <michel.daenzer@....com>
> Signed-off-by: Alex Deucher <alexander.deucher@....com>
> Signed-off-by: Luis Henriques <luis.henriques@...onical.com>

We're currently investigating a regression which was bisected to this
change. Please hold off on backporting this change until we have a
solution for that.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer
--
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/