Version: (using KDE 4.2.2) Compiler: gcc version 4.3.3 (Debian 4.3.3-8) OS: Linux Installed from: Debian testing/unstable Packages Hey, There are artifacts generated all the time in all one-line input fields. If you select the text in the box it all turns black. Images attached: http://gnet.homelinux.com/pics/render_error.png http://gnet.homelinux.com/pics/render_error2.png I am using Debian unstable here. This recently started since my last upgrade.
I'm kind of experiencing this on Qt-only apps here using: Qt: 4.5.0 + qt-copy-patches-942255 KDE: 4.2.70 (KDE 4.2.70 (KDE 4.3 >= 20090415)) kdelibs svn rev. 958964 / kdebase svn rev. 958965 xorg1.6.1+intel2.6.3@IntelGMAx3100 on ArchLinux i686 - Kernel 2.6.29.1 so I don't think it is a KDE bug but may be a Qt+weird-graphics(card or drivers) one
I found that when adding this line to xorg.conf in the Section Device: Option "AccelMethod" "XAA" The problem stops. However it effects the rendering of windows (when dragged they are not rendered). (You must not be in opengl mode to recreate this bug). It means its likely connected to the bug reported here, which I also experienced: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/350306?comments=all
XAA is going to be deprecated soon. You can try EXA but it may cause some hang at the start. You need to ask this in the forums first to get some advice.
Hey Dario, Thanks for the tip, I just got the bug again, however it seemed not snap out of The freeze and not totally die. Ill try EXA and see if it acts better. My dmesg was after getting this strange leak, with XAA on: [110284.271626] phosphor[10418]: segfault at 0 ip b7c72a41 sp bfd97dd8 error 4 in libc-2.9.so[b7c10000+15a000] [135029.534521] phosphor[21083]: segfault at 0 ip b7db5a41 sp bf8db938 error 4 in libc-2.9.so[b7d53000+15a000] [139802.006323] phosphor[23304]: segfault at 0 ip b7c5ba41 sp bf87f878 error 4 in libc-2.9.so[b7bf9000+15a000] [152712.685278] phosphor[24932]: segfault at 0 ip b7c1da41 sp bfd42268 error 4 in libc-2.9.so[b7bbb000+15a000] [159541.673745] phosphor[31466]: segfault at 0 ip b7c1ba41 sp bfd41228 error 4 in libc-2.9.so[b7bb9000+15a000] [163601.424707] ipw2200: Firmware error detected. Restarting. [168989.314851] phosphor[2910]: segfault at 0 ip b7d7fa41 sp bfba5508 error4 in libc-2.9.so[b7d1d000+15a000] [172369.381223] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 1 [172473.061891] ADDRCONF(NETDEV_UP): eth4: link is not ready [172478.336551] ADDRCONF(NETDEV_CHANGE): eth4: link becomes ready [172488.480029] eth4: no IPv6 routers present
Um, Dario, are you using the plastique style for windows? I just found out the bug stops if I am on cleanlooks or oxygen. Guy
Mh, yeah, it seems to happen on Plastique. And as this happens on QtAssistant I'm wondering if this is a Qt bug.
This is fixed for me since a long time ago (now using an updated Qt4.6 and KDE4.4 trunk..) - Can you confirm this ? Thanks
Yes, seems fine here, even on Plastique.
Closing as WORKSFORME. Thanks