Bug 270308

Summary: changing size of konsole window hangs whole kde
Product: [I don't know] kde Reporter: Michał Walenciak <Kicer86>
Component: generalAssignee: Unassigned bugs mailing-list <unassigned-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: a.samirh78, adaptee, alterratz, mewolejko, stevee
Priority: NOR    
Version: 4.6   
Target Milestone: ---   
Platform: Mageia RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Michał Walenciak 2011-04-07 11:58:34 UTC
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
Comment 1 mewolejko 2011-04-13 21:55:16 UTC
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)
Comment 2 alterratz 2011-05-18 01:56:20 UTC
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
Comment 3 Steve Evans 2011-06-26 18:34:41 UTC
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
Comment 4 Ahmad Samir 2011-06-26 20:30:04 UTC
FWIW, this issue is fixed with the nVidia proprietary driver 275.09.07.
Comment 5 Jekyll Wu 2011-08-16 13:03:25 UTC

*** This bug has been marked as a duplicate of bug 160467 ***