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it_services:problems [2014/06/12 09:42] florido created |
it_services:problems [2014/06/12 17:13] florido |
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===== Very slow graphical interface on workstation ====== | ===== Very slow graphical interface on workstation ====== | ||
- | In systems running nvidia graphical cards, sometimes the video driver gets messed up with cached info. | + | ==== Disable Desktop Effects in KDE ==== |
- | To fix this, run the following as normal user while logged in e.g. KDE: | + | |
+ | - Click on the KDE icon and search for ''Desktop Effects'' | ||
+ | - Disable effects as in this picture: | ||
+ | {{http://mschlander.files.wordpress.com/2011/01/effects.png?w=720}} | ||
+ | The above picture belongs to this blog you might want to have a read: | ||
+ | http://mschlander.wordpress.com/2011/01/23/kde-is-slow-for-dummies/ | ||
+ | |||
+ | ==== NVIDIA video card issues ==== | ||
+ | |||
+ | In systems running nvidia graphical cards, sometimes the video driver gets messed up with cached info. | ||
+ | To fix this, run the following as normal user while logged in e.g. KDE: | ||
+ | <code bash> | ||
+ | nvidia-settings -a PixmapCache=0 | ||
+ | </code> | ||
Affected systems so far: | Affected systems so far: | ||
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root@jarjar 11.4 ~> lspci | grep VGA | root@jarjar 11.4 ~> lspci | grep VGA | ||
01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1) | 01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1) | ||
- | <code> | + | </code> |
+ | |||
+ | ===== System becomes unresponsive and crashes ===== | ||
+ | |||
+ | ==== Akonadi+nepomuk eating all CPU power and memory ==== | ||
+ | |||
+ | You can spot this if you login to a terminal and run ''top''. You'll see processes that contain ''akonadi'' in the name taking over 100% of all cores and memory. | ||
+ | |||
+ | To solve this problem, | ||
+ | - Login on terminal or ssh to any machine with your user. | ||
+ | - cd into your home folder, and run the following:<code bash> | ||
+ | rm -rf .local/share/akonadi | ||
+ | rm -rf .config/akonadi | ||
+ | rm .kde4/share/config/akonadi* | ||
+ | </code> | ||
+ | - logout and try to login graphically. Akonadi should not freak out | ||
+ | anymore. | ||
+ | |||
+ | ==== nfs4 mount problems ==== | ||
+ | |||
+ | Due to incompatibility trough versions on nfs4, if in the logs such an error appears: | ||
+ | <code io> | ||
+ | Jun 12 13:57:55 balder automount[3145]: umount_autofs_indirect: ask umount returned busy /nfs | ||
+ | </code> | ||
+ | then it seemed more stable to switch to nfs3. This is done in '/etc/nfsmount.conf'. Please ask the administrator for such a fix. |