From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 45641] Screen goes black randomly
Date: Fri, 15 Jun 2012 23:36:50 +0000
Message-ID: <bug-45641-502-QLeLMJyF0O@http.bugs.freedesktop.org/>
References: <bug-45641-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=45641

--- Comment #7 from Warren Jones <wjones@fluke.com> 2012-06-15 16:36:50 PDT ---
I'm experiencing similar problems.  My screen will go black for 1-2 seconds at
random intervals, typically more than a dozen times per hour.  In a two monitor
configuration, sometimes the left monitor will go black, sometimes the right
monitor, and occasionally both.

My video card:  ATI RV610 [Radeon HD 2400 XT]

My configuration:

    openSUSE 12.2 beta 1
    kernel-desktop-3.4.0-2.2
    xorg-x11-7.6_1-1.1
    xf86-video-ati-6.14.4-2.1

The problem appeared somewhere between openSUSE 12.2 milestone 3 and beta 1. 
This is the last known good configuration:

    openSUSE 12.2 milestone 3
    kernel-default-3.3.0-2.1
    xorg-x11-7.6-76.3
    xorg-x11-driver-video-7.6-91.1

(The radeon driver moved from xorg-x11-driver-video to xf86-video-ati between
these two releases.)

eg> cat /etc/X11/xorg.conf.d/50-device.conf
Section "Device"
  Identifier   "Default Device"
  VendorName   "ATI"
  BoardName    "Radeon HD 2400 XT"
  Driver       "radeon"
  Option       "monitor-DVI-0" "Monitor[1]"
  Option       "monitor-DVI-1" "Monitor[0]"
EndSection

I installed kernel-default-3.3.0-2.1 from the last known good configuration to
rule out problems related to KMS, but the black screens continued.

I've observed the problem with KDE, Gnome, XFCE, LXDE, etc.

I don't see anything suspicious in /var/log/Xorg.0.log, /var/log/messages or
the output from dmesg.

I've also filed a bug report here:

    https://bugzilla.novell.com/show_bug.cgi?id=767360

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