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A complete new install of lubuntu 11.10 [...17.10] has synaptic 0.75.2ubuntu7 [...0.84.2]. Previously when using synaptic on another system there was a search box in the tool bar where a search string could be entered which would reduce the displayed packages as the string was being entered. The box is not being displayed nor do I find any setting to enable/disable it.

2
  • this is still a bug in 12.10 Lubuntu however solved with the answer provided
    – Ringtail
    Nov 29, 2012 at 3:47
  • experienced in lubuntu 15.10, fixed with provided answer
    – Al F
    Feb 25, 2016 at 15:50

3 Answers 3

50
sudo apt-get install apt-xapian-index
sudo update-apt-xapian-index -vf

From: http://ubuntuforums.org/showthread.php?t=1178974

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  • Unfortunately this solution does not work for me (ubuntu x64 12.10 fresh install)
    – JoZ3
    Apr 10, 2013 at 17:12
  • 5
    works for ubuntu 16.04
    – aryndin
    Apr 8, 2016 at 6:15
  • 2
    Needed this in Ubuntu GNOME 16.04 as well.
    – zeitue
    Apr 23, 2016 at 1:14
  • What are these commands doing? What are we installing? Just giving the link is dangerous, as it might die. Would be nice to have an explanation.
    – neuronet
    Jul 29, 2016 at 1:20
9

If the other answers don't help then try:

sudo apt-get install --reinstall synaptic
sudo dpkg-reconfigure synaptic

It worked for me.

3

forums linuxmint suggests installing apt-xapian-index when the box is present but grayed out. This solution also works in this case where the Quick Filter box is completely missing.

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