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it_services:problems [2014/06/12 17:13] florido |
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- | ====== Problems @ Matfys ====== | + | remove this page. |
- | + | ||
- | In this page I am trying to collect all the issues that I solved from time to time, so that I remember how to fix those if needed. | + | |
- | + | ||
- | ===== Very slow graphical interface on workstation ====== | + | |
- | + | ||
- | ==== Disable Desktop Effects in 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: | + | |
- | <code bash> | + | |
- | root@jarjar 11.4 ~> lspci | grep VGA | + | |
- | 01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1) | + | |
- | </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. | + |