https://bugzilla.novell.com/show_bug.cgi?id=478495 User mail@andreas-demmer.de added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c2 Andreas Demmer changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mail@andreas-demmer.de --- Comment #2 from Andreas Demmer 2009-02-22 02:30:08 MST --- I can confirm this but there is a way more easy workaround until the issue is fixed: When the black screen appears, just disable compositing by pressing [ALT]+[SHIFT]+[F12] -> Your windows re-appear. Afterwards, you can re-enable compositing with the same hotkey: [ALT]+[SHIFT]+[F12] -- 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=478495 User remur@gmx.net added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c4 Karsten König changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |remur@gmx.net Component|KDE4 Workspace |KDE4 Workspace Product|openSUSE 11.1 |openSUSE 11.2 Target Milestone|--- |unspecified --- Comment #4 from Karsten König 2009-02-22 02:53:35 MST --- Changed product to 11.2 as it is a 4.2 bug -- 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=478495 User weigelt.bernd@web.de added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c6 Bernd Weigelt changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |weigelt.bernd@web.de --- Comment #6 from Bernd Weigelt 2009-02-22 06:53:29 MST --- I have found this in forums.opensuse.org I can't test it, because the machine isn't here http://forums.opensuse.org/applications/408398-newest-kde4-factory-black-scr... -- 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=478495 User mrdocs@opensuse.org added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c8 --- Comment #8 from P Linnell 2009-02-22 08:51:14 MST --- (In reply to comment #7)

(In reply to comment #5)

...

I've tried trigers mentioned on kde bugs but I could not reproduce this bug, I wonder where is the difference between my system and yours.

I think it may be related that I use Qt 4.5-rc1 (from here: http://download.opensuse.org/repositories/KDE:/Qt/openSUSE_11.1/x86_64/)

libqt4-x11-4.4.3-4.8.2 libqt4-4.4.3-4.8.2 libqt4-sql-mysql-4.4.3-11.8.1 ibqt4-sql-4.4.3-4.8.2 libqt4-qt3support-4.4.3-4.8.2 libqt4-devel-4.4.3-4.8.2 KDE: 4.2.00 (KDE 4.2.0) "release 102" radeon open source drivers rpm -qa kernel* kernel-pae-base-2.6.27.7-9.1 kernel-pae-2.6.27.7-9.1 kernel-pae-extra-2.6.27.7-9.1 -- 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=478495 User rodney.baker@iinet.net.au added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c10 Rodney Baker changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rodney.baker@iinet.net.au --- Comment #10 from Rodney Baker 2009-02-23 00:48:48 MST --- I have also seen this running 4.2 on 11.0. It started after the latest KDE update from Factory last Thursday/Friday. Clicking on icons in the plasma panel quick-launch can trigger it, especially if a system tray icon has been clicked first. When I see it occur if I press Alt+Tab, the window titles show at the bottom of the screen (I have cover switch enabled). The applications are still running and responsd to keystrokes but apart from the mouse cursor and cover-switch window titles nothing else is visible. Running NVidia binary drivers version 173.14.12 (compiled from source). -- 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=478495 User rodney.baker@iinet.net.au added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c12 --- Comment #12 from Rodney Baker 2009-02-23 05:49:47 MST --- This has deteriorated to the point where every time I try to open Konsole or Firefox I get a black screen with a mouse cursor. I am attaching xsession-errors. The last crash was simply clicking on the menu button on the panel. KDE4 is virtually unusable since the latest update. Output of rpm -qa | grep 'kde4': kde4-kim-0.9.5-0.pm.2 kde4-ksnapshot-4.2.0-74.1 kde4-kio_kamera-4.2.0-74.1 kde4-kgamma-4.2.0-74.1 kde4-kate-devel-4.2.0-45.1 kde4-kdm-branding-openSUSE-11.1-83.17 kde4-kwalletmanager-4.2.0-45.18 libkde4-4.2.0-102.1 kde4-kmix-4.2.0-41.24 kde4-kate-4.2.0-45.1 kde4-kdm-4.2.0-204.2 kde4-kaffeine-4.2.0.svn927725-1.3 kde4-okular-4.2.0-74.1 kde4-keditbookmarks-4.2.0-73.1 kde4-kdialog-4.2.0-73.1 kde4-kio_audiocd-4.2.0-41.24 kde4-korganizer-4.2.0-92.1 python-kde4-4.2.0-35.18 libkde4-devel-4.2.0-102.1 kde4-kuser-4.2.0-28.19 kde4-kjots-4.2.0-92.1 kde4-kmail-4.2.0-92.1 kde4-kalarm-4.2.0-92.1 qtcurve-kde4-0.60.0-2.4 kde4-kgpg-4.2.0-45.18 kde4-kfilereplace-4.2.0-30.22 kde4-kreversi-4.2.0-43.1 skanlite-0.2.kde4.2.0-9.22 kde4-kcalc-4.2.0-45.18 kde4-ktouch-4.2.0-51.10 kde4-kinfocenter-4.2.0-73.1 kde4-konqueror-plugins-4.2.0-39.28 kde4-konsole-4.2.0-73.1 kde4-akregator-4.2.0-92.1 kde4-kalzium-4.2.0-51.10 kde4-kdenlive-0.7.1-0.pm.2 kde4-ark-4.2.0-45.18 kde4-kimagemapeditor-4.2.0-30.22 kde4-amarok-2.0.1.1-20.46 kde4-kontact-4.2.0-92.1 kde4-kruler-4.2.0-74.1 kde4-kmtrace-4.2.0-45.1 kde4-kpat-4.2.0-43.1 kde4-kdf-4.2.0-45.18 kde4-kcm_gtk-1.1-128.32 kde4-kwrite-4.2.0-73.1 kde4-krdc-4.2.0-62.1 kde4-knotes-4.2.0-92.1 kde4-kgreeter-plugins-4.2.0-204.2 kde4-l10n-he-4.2.0-14.19 kde4-kdessh-4.2.0-45.18 kde4-konqueror-4.2.0-73.1 kde4-kcron-4.2.0-28.19 kde4-konqueror-plugins-lang-4.2.0-39.28 kde4-amarok-lang-2.0.1.1-20.46 kde4-printer-applet-4.2.0-45.18 kde4-webkitpart-4.2.0.svn928260-18.1 kde4-kmag-4.2.0-32.25 kde4-kcolorchooser-4.2.0-74.1 kde4-plasma-addons-4.2.0-55.10 kde4-kcharselect-4.2.0-45.18 kde4-k3b-4.2.0.svn927728-4.2 kde4-krfb-4.2.0-62.1 kde4-kdepasswd-4.2.0-73.1 kde4-kmines-4.2.0-43.1 kde4-kolf-4.2.0-43.1 kde4-krename-3.9.1-1.1 kde4-superkaramba-4.2.0-45.18 ruby-kde4-4.2.0-37.1 kde4-kopete-4.2.0-62.1 kde4-kaddressbook-4.2.0-92.1 kde4-kmahjongg-4.2.0-43.1 kde4-kwin-4.2.0-204.2 kid3-kde4-1.1-1.pm.1 kde4-l10n-en_GB-4.2.0-14.19 kde4-kfloppy-4.2.0-45.18 kde4-kweather-4.2.0-22.24 kde4-kfind-4.2.0-73.1 kde4-kalgebra-4.2.0-51.10 kde4-kget-4.2.0-62.1 kde4-k9copy-2.1.0-0.pm.2 kde4-filesystem-4.2.0-36.2 kde4-kompare-4.2.0-45.1 kde4-kmplot-4.2.0-51.10 kde4-kbugbuster-4.2.0-45.1 kde4-dolphin-4.2.0-73.1 kde4-opensuse-updater-0.7.17-6.2 kde4-kplayer-0.7-0.pm.1 kde4-kwikdisk-4.2.0-45.18 kde4-knetworkconf-4.2.0-28.19 kde4-kpackage-4.2.0-28.19 kde4-gwenview-4.2.0-74.1 kde4-yakuake-2.9.4-14.34 Last few lines of .xsession-errors: QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Paint device returned engine == 0, type: 3 QPainter::setFont: Painter not active QPainter::setRenderHint: Painter must be active to set rendering hints QPainter::end: Painter not active, aborted kwin(3802) KWin::checkGLError: GL error ( PostPaint ): 0x "500" QPainter::begin: Paint device returned engine == 0, type: 3 QPainter::setFont: Painter not active QPainter::setRenderHint: Painter must be active to set rendering hints QPainter::end: Painter not active, aborted kwin(3802) KWin::checkGLError: GL error ( PostPaint ): 0x "500" QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QPainter::begin: Cannot paint on a null pixmap QObject: Do not delete object, 'unnamed', during its event handler! (full file attached). -- 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=478495 User remur@gmx.net added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c14 --- Comment #14 from Karsten König 2009-02-23 06:03:58 MST ---

KDE4 is virtually unusable since the latest update

Well just turn of compositing or disable the present windows effect... Makes it totally usable again. -- 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=478495 User ruchir.brahmbhatt@ecosmob.com added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c16 --- Comment #16 from Ruchir Brahmbhatt 2009-02-23 06:52:29 MST --- (In reply to comment #15)

Sorry but in my case the Alt+Shift+F12 shortcut did not bring the windows back again. I've confirmed that it does disable compositing when windows are visible but as soon as the black screen occurs the only way out is Ctrl+Alt+Backspace.

I even renamed plasmarc and plasma-appletsrc and restarted with the default desktop but to no avail.

As a test I've now disabled "Improved Window Handling" in the KDE4 desktop settings. It seems to be much more stable with that setting turned off (a few other desktop effects are still turned on).

If it occurs again I'll try to narrow it down one-by-one if I can.

I also encountered this issue. When this occurred few mins ago, I couldn't get back usable desktop using alt+shift+F12. I had to restart kde using alt+backspace. -- 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=478495 User mail@andreas-demmer.de added comment https://bugzilla.novell.com/show_bug.cgi?id=478495#c18 --- Comment #18 from Andreas Demmer 2009-03-29 03:56:31 MDT --- Could these patches (https://bugs.kde.org/show_bug.cgi?id=185127 comments #32 and #57 be merged into openSUSE KDE 4.2.2 packages? -- 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.