Version: 4.6 (using KDE 4.6.2) OS: Linux in kde 4.6.1 I hade such problem: If I maximize konsole, system totally hangs. Only Magic SysRq are the salvation (saK doesn't work however) ;) I've made a small investigation and the problem is in OpenGL settings in Desktop Effects (Advanced tab). If I set: Scale method: Smooth OpenGL mode: shared memory Vsync to yes Direct rendering to yes the problem occurs. It's hard to say which option is the problem as I tried some combinations and once it worked, sometimes it doesn't. To be sure, that the konsole maximization won't hang the pc, I've set: Scale method: Crisp OpenGL mode: Texture from bitmap Vsync to no Direct rendering to no With those options, it's ok, however while konsole maximization, konsole window blinks ominously ;) The functionality test were disabled in both cases and suspend desktop effects for fullscreen windows were enabled. ps. above option names were translated from polish so may differ a little. In kde 4.6.2 it's even worse: any change of konsole's window size hangs (usually) the system. Screen is always blinking when I'm resizing it. My "safe" settings dosn't work anymore. Reproducible: Always Steps to Reproduce: in 4.6.1: 1. Set options in systemsettings as descibed above (desktop effects in general tab must be enabled) 2. Logout (it doesn't "work" without logout) 3. open konsole window and maximize it. System will totaly hang in 4.6.2: any change of konsole's window size hangs the system My graphics card is NVidia GeForce 8600. Driver: current-270.30
I have a very similar setup and am experiencing identical problems. Any attempt to resize the konsole window with desktop effects active results in a freeze, and "blinking" during resize (and after the inevitable freeze) is apparent. Disabling all desktop effects allows resizing without freezing, but I'm getting a black box drawn in the upper left corner of my primary monitor whenever I resize it. Said black box is the same size and shape as the konsole window, and grows as I increase the size of konsole. I'm not an Arch Linux user, but they do have a bug report on this same issue that suggests it's most commonly seen with a combination of KDE 4.6.x, a 2.6.38 kernel, and nvidia drivers from 270.30 up: https://bugs.archlinux.org/task/23381 KDE 4.6.2 on Xorg 1.10 Kernel 2.6.38 Nvidia driver: 270.41.03 (also occurred with 270.30) card: GeForce 9500GT in a Twinview setup (1680x1050 + 1280x1024)
I have the same bug running on KDE 4.6.2 KDE 4.6.2 Kernel 2.6.38.5 NVidia Driver 270.41.06 Xorg 1.10 GeForce GTX 275 @ 1920x1200
I have just started seeing this problem after upgrading from Xorg 1.9 to 1.10 KDE 4.6.3 Kernel 2.6.38 Nvidia driver 270.41.06 GeForce GT 220 @ 1600x122 The problem did not occur with Xorg 1.9
FWIW, this issue is fixed with the nVidia proprietary driver 275.09.07.
*** This bug has been marked as a duplicate of bug 160467 ***