From nobody@FreeBSD.org  Thu Jul 26 10:46:02 2007
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Date: Thu, 26 Jul 2007 10:46:02 GMT
From: Vsevolod Volkov <vvv@lucky.net>
To: freebsd-gnats-submit@FreeBSD.org
Subject: green_saver does not switch DVI monitor power off
X-Send-Pr-Version: www-3.0

>Number:         114928
>Category:       kern
>Synopsis:       green_saver does not switch DVI monitor power off
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jul 26 10:50:01 GMT 2007
>Closed-Date:    
>Last-Modified:  Tue Jan 15 05:37:01 UTC 2008
>Originator:     Vsevolod Volkov
>Release:        6.2-RELEASE-p5
>Organization:
>Environment:
FreeBSD tea.colocall.net 6.2-RELEASE-p5 FreeBSD 6.2-RELEASE-p5 #9: Wed Jul 11 12:04:15 EEST 2007     root@tea.colocall.net:/usr/obj/usr/src/sys/tea  i386

>Description:
green_saver does not switch DVI monitor power off, just blanks a screen.
Backlight stays on. There is no problem when monitor connected via analog
VGA cable.

Additional information:
- VGA: nVidia GeForce 6200 TC or 7600 GS;
- Monitor: ViewSonic VG920 connected via DVI;
- /etc/rc.conf:
saver="green"
allscreens_flags="MODE_282" # 1280x1024

>How-To-Repeat:
Connect LCD monitor via DVI.
Load green_saver.
Wait for screensaver timeout.

>Fix:


>Release-Note:
>Audit-Trail:

From: Stefan Thurner <stefan.thurner@mb.tu-chemnitz.de>
To: bug-followup@FreeBSD.org, vvv@lucky.net
Cc:  
Subject: Re: kern/114928: green_saver does not switch DVI monitor power off
Date: Mon, 30 Jul 2007 08:21:10 +0200 (MEST)

 Hi,
 
 I can confirm this. My hardware is a GeForce 6600 and an 
 EIZO S1910 conected via DVI.
 
 I found out that this monitor uses DMPM instead of DMPS to 
 switch the monitor off when using DVI. May be it's still not 
 implemented in green_saver.
 
 regards
 -Stefan
 -- 
 Technische Universitt Chemnitz
 Institut fr Fertigungstechnik/Schweitechnik
 Telefon: +49 (0) 371/531 32403
 Telefax: +49 (0) 371/531 23729
>Unformatted:
