https://bugzilla.novell.com/show_bug.cgi?id=478296 User felix@derklecks.de added comment https://bugzilla.novell.com/show_bug.cgi?id=478296#c1 Felix Möller changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |felix@derklecks.de --- Comment #1 from Felix Möller 2009-02-22 03:08:30 MST --- I guess the output of hwinfo --gfxcard might be interesting and probably /etc/X11/xorg.conf -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=478296 User tittiatwork@hotmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=478296#c3 --- Comment #3 from Raymond Wooninck 2009-02-22 03:26:59 MST --- Created an attachment (id=274502) --> (https://bugzilla.novell.com/attachment.cgi?id=274502) /etc/X11/xorg.conf -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=478296 User tittiatwork@hotmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=478296#c5 --- Comment #5 from Raymond Wooninck 2009-02-23 07:37:08 MST --- Some additional info: It is somewhere a combination of the new kernel graphical drivers, Xserver and kwin. If I disable the KDE4 Desktop Effects, the system behaves normally. I can easily back and forth to konsole sessions, without any issue. What I notice is that once I switch back to the grahical screen (Ctrl-Alt-F7), I see shortly (about 0.5 seconds) the screen which is partly (the top) covered by black. The external monitor switches then to Powersave mode (as if the graphical card is initializing (or something like this) and then 0.5 seconds later the normal graphical screen appears. This behaviour is also new as that with older kernel version, the screen directly appeared after pressing Ctrl-Alt-F7. When the Desktop Effects (composite) are enabled somehow the re-initializing of the graphical card (the part where the external monitor indicated powersave mode) does not work and causes the hang-up of the desktop. Regards Raymond -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=478296 User tittiatwork@hotmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=478296#c6 --- Comment #6 from Raymond Wooninck 2009-02-23 12:20:10 MST --- I believe that I found the bug that is causing this issue. Please check the following link : http://bugzilla.kernel.org/show_bug.cgi?id=12444 This is exactly the problem I am having and it seems that it is not related to the KDE version itself, as the this bug identifies the issue for KDE4.1.3. The cause identified is : Caused by: commit 7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a Author: Dave Airlie Date: Fri Nov 28 14:22:24 2008 +1000 drm: move to kref per-master structures. Signed-off-by: Dave Airlie -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.