Reset Audio
pulseaudio --kill; sleep 2s; sudo alsa force-reload ; pulseaudio --start
Restart audio application(s), e.g. Spotify
This works with Ubuntu 18.04 and may work for other versions too
Category Archives: Kubuntu
Add Suspend icon to the KDE Application Menu
To add the Suspend icon to the KDE Application Menu
- Click the KDE icon (bottom left hand corner) to bring up the Application Menu
- Click “Power/Session” on right-hand list to bring up list of Shutdown Options
- Right-click Suspend and select Add to Favorites
Similarly you can add or remove other shutdown icons.
Ubuntu Thunderbird 60.2.1 Lightning Calender Missing
To fix do the following
- Remove the lightning add-on in Thunderbird
- Exit from Thunderbird
- Install xul-ext-lightning package with
sudo apt install xul-ext-lightning
- Restart Thunderbird
Ref: StackExchange
Mount EFI Partition from Linux
This blog (http://www.pjc.me.uk/efi-gpt/) is the only one that gets to anywhere close to answering this question. However you need to substitute “auto” instead of “fat32” in the mount command to get it to work. “xfs” and “fat32” threw out errors – actually the mount command after mounting shows it was “vfat”!
Here’s how I mounted the EFI partition on my external 500GB drive:
sudo parted -l print Model: ATA ST3500630AS (scsi) Disk /dev/sdb: 500GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 135MB 134MB bios_grub 2 135MB 345MB 210MB fat32 boot 3 345MB 479MB 134MB fat32 msftres 4 479MB 54.2GB 53.7GB ntfs msftdata 5 54.2GB 108GB 53.7GB ntfs msftdata 6 108GB 162GB 53.7GB ntfs msftdata 7 162GB 172GB 10.7GB ext4 8 172GB 184GB 11.8GB ext4 9 184GB 185GB 1074MB linux-swap(v1) 10 185GB 228GB 42.8GB hfs+ Apple_HFS_Untitled_2 11 228GB 282GB 53.6GB hfs+ Apple_HFS_Untitled_3 12 282GB 335GB 53.6GB hfs+ Apple_HFS_Untitled_4 13 335GB 389GB 53.6GB hfs+ Apple_HFS_Untitled_5 14 389GB 488GB 99.2GB hfs+ Apple_HFS_Untitled_6 15 488GB 489GB 650MB hfs+ Recovery HD 16 489GB 500GB 10.9GB hfs+ Apple_HFS_Untitled_2 sudo mount -t auto /dev/sdb2 /mnt/test cd /mnt/test/ ls boot EFI
Use kdesudo Dolphin (as Root) to view and edit files on the EFI partition
Note use of Parted (supports GPT drives) to get the partition number
Download project folder from GitHub using subversion
Install Subversion (SVN) as follows:
sudo apt-get install subversion
This command exports the GitHub PROJECT folder and subfolders and to DEST
svn export https://github.com/USER/PROJECT/trunk/PATH DEST
Suffix the PROJECT folder with /trunk and append the folder /PATH you wish to download. If the DEST folder does not exist it is automatically created.
For example the following command copies Tutsplus 30-days-to-jquery/lessons folder to lessons folder on the local drive:
svn export https://github.com/tutsplus/30-days-to-jquery/trunk/lessons lessons
Kate editor not parsing @media queries correctly
This problem exhibits itself when viewing css files with @media {…} queries with Kate text editor versions < v3.14. Kate highlights these sections incorrectly with red underline or similar.
The fix for this bug is to add <DetectSpaces/> to the MQEV context of Kate’s css.xml highlighting file so that it parses spaces after @media attribute and before the curly brace correctly.
In Kubuntu 14.04 css.xml is located in /usr/share/kde4/apps/katepart/syntax/css.xml
Edit this file with Kate as follows
kdesudo kate /usr/share/kde4/apps/katepart/syntax/css.xmlFind the second occurrence of “MQEV” to locote code section to add <DetectSpaces/> as shown below:
Code before:
<context attribute="Media" lineEndContext="#stay" name="MQEV">
<!-- this should be seperate for different features, for now it is all the same -->
<RegExpr attribute="Value" context="#pop" String="[1-9][0-9.]*\s*/\s*[1-9][0-9.]*" />
<RegExpr attribute="Value" context="#pop" String="[0-9.]+(em|ex|ch|rem|vw|vh|vm|px|in|cm|mm|pt|pc|deg|rad|grad|turn|ms|s|Hz|kHz|dpi|dpcm)\b" />
<RegExpr attribute="Value" context="#pop" String="[0-9.]+[%]?" />
<RegExpr attribute="Value" context="#pop" String="(portrait|landscape)" />
<RegExpr attribute="Error" context="#stay" String=".*"/>
</context>Code after:
<context attribute="Media" lineEndContext="#stay" name="MQEV"> <DetectSpaces/> <!-- this should be seperate for different features, for now it is all the same --> <RegExpr attribute="Value" context="#pop" String="[1-9][0-9.]*\s*/\s*[1-9][0-9.]*" /> <RegExpr attribute="Value" context="#pop" String="[0-9.]+(em|ex|ch|rem|vw|vh|vm|px|in|cm|mm|pt|pc|deg|rad|grad|turn|ms|s|Hz|kHz|dpi|dpcm)\b" /> <RegExpr attribute="Value" context="#pop" String="[0-9.]+[%]?" /> <RegExpr attribute="Value" context="#pop" String="(portrait|landscape)" /> <RegExpr attribute="Error" context="#stay" String=".*"/> </context>
Save change and restart Kate. You should now see your css @media code displayed normally.
Credits: Fix bug #335744: Kate/KWrite CSS highlighting problems with media queries. Published by Martin Walch 2014-06-03 13:48:59 UTC https://bugs.kde.org/show_bug.cgi?id=335744
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