From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 81382] Text console blanking does not go away Date: Thu, 11 Sep 2014 10:42:35 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1963949271==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 7CFCC6E536 for ; Thu, 11 Sep 2014 03:42:35 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1963949271== Content-Type: multipart/alternative; boundary="1410432155.2acd45680.18666"; charset="us-ascii" --1410432155.2acd45680.18666 Date: Thu, 11 Sep 2014 10:42:35 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=81382 --- Comment #9 from Denys Vlasenko --- (In reply to comment #7) > Ok, this fix work, but cause another problem (tested with 3.15.5+patch and > 3.16.1). > > When display goes off, backlight goes off. > When display goes on, backlight is set to MAX. > When display goes off again, backligh remains MAX. > After pressing key, LCD works, backlight stay at MAX level. > When display goes off, backlight is still MAX. I would say it means that merely treating backlight value of 0 as MAX is not the best idea. Maybe we need an additional bool variable "failed to read initial BL value, don't ever try to set it", set it if initial read of BL value is 0, and if it is set, never try to change BL level? -- You are receiving this mail because: You are the assignee for the bug. --1410432155.2acd45680.18666 Date: Thu, 11 Sep 2014 10:42:35 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 9 on bug 81382 from 
(In reply to comment #7)
> Ok, this fix work, but cause another problem (tested with 3.15.5+patch and
> 3.16.1).
> 
> When display goes off, backlight goes off.
> When display goes on, backlight is set to MAX.
> When display goes off again, backligh remains MAX.
> After pressing key, LCD works, backlight stay at MAX level.
> When display goes off, backlight is still MAX.

I would say it means that merely treating backlight value of 0 as MAX is not
the best idea.

Maybe we need an additional bool variable "failed to read initial BL value,
don't ever try to set it", set it if initial read of BL value is 0, and if it
is set, never try to change BL level?

You are receiving this mail because:
  • You are the assignee for the bug.
--1410432155.2acd45680.18666-- --===============1963949271== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============1963949271==--