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--- it_services:mf:problems [2014/06/12 17:16]
florido created
+++ it_services:mf:problems [2020/08/20 17:01] (current)
florido [Disable Desktop Effects in KDE]
@@ Line 9: / Line 9: @@
 - 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}}
+{{http://mschlander.files.wordpress.com/2011/01/effects.png?w=720|KDE desktop effects window}}
 The above picture belongs to this blog you might want to have a read:
@@ Line 52: / Line 52: @@
 then it seemed more stable to switch to nfs3. This is done in '/etc/nfsmount.conf'. Please ask the administrator for such a fix.
+===== Issues printing to the copy machine =====
+Most of the issues are due to incorrect code sent to the copy machine.
+If you experience problems printing from KDE or command line, follow these instructions:
+==== Kde: ====
+For some reason KDE incorrectly writes the options for this printer. This is a KDE bug against Canon drivers.
+  - Edit the following file: <code>~/.cups/lpoptions</code>
+  - If there is a line regarding ''copy-t'' or ''copy-n'', remove that line. Sample correct file is as follows:<file>
+Default printer
+</file>
+  - If you want to specify custom options for the printer, set them in KDE, but then check the content of ''lpotions'' again, it should be something like:<file>
+Dest copy-n ColourModel=Colour UserID=None UserPassword=None
+Dest copy-t ColourModel=Colour UserID=None UserPassword=None
+Default printer
+</file>
+==== Commandline: ====
+It is good to test if printing works by command line.
+To pass the codes to the print queue (should not be needed after you do the
+KDE thing above, but in any case) issue the following:
+''lpr -o UserID=<code> -o UserPassword=<code> -Pcopy-t yourfile''
+It seems the driver for this printer is different than the previous one
+and KDE always tries to fallback to some weird default.
+===== Firefox won't open: another instance is running or similar errors =====
+This happens in two cases:
+== 1. You have firefox open in workstation A, and you try yo open it in workstation B ==
+**Solution**: It's advisable to close it in workstation A first. Each instance of firefox will write in the
+same profile folder that might cause problems. To save your work you might want to use the [[https://addons.mozilla.org/en-US/firefox/addon/session-manager/|session-manager extension]]
+== 2. Your machine shut down abruptly or lost connection with the fileserver before firefox released the profile lock ==
+**Solution**: remove the profile lock using this simple one-liner.
+:!:**OBS**:!:: make sure you **DO NOT** have firefox already running on some other machine or you will cause severe damage to your firefox setup!!
+<code bash>find ~/.mozilla/firefox/ -iname '.parentlock' -exec rm {} \;</code>
+And try to restart firefox again.

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