how to refresh the dash / head-up display
I have a question about dash -- or is it the head-up display (HUD)? I never quite got what is the difference between the two but I mean the thing that opens when I click the Ubuntu symbol and that replaced the menu. In the process list it seems to show up under unity-2d-shell.
Since I have been on Ubuntu 12.04 I sometimes experience the problem that after log-in the dash contains no applications. Waiting a reasonable amount of time (say, five minutes) and reopening the dash many times does not help. So far the only solution I know is to log off and back on. (I do not need to reboot.)
Is there a way to force a refresh of the dash's contents without logging of? Such as sending it a signal or so? I can open a terminal by pushing Ctrl-Shift-T (not by Alt-F2, though).
Thank you in advance,
Reinhard (Aisano)
Question information
- Language:
- English Edit question
- Status:
- Solved
- For:
- Ubuntu unity Edit question
- Assignee:
- No assignee Edit question
- Solved by:
- Aisano
- Solved:
- Last query:
- Last reply:
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#1 |
Terminology.
http://
Dash is displayed by super-key.
https:/
HUD is displayed by alt-key.
http://
Long-press super-key displays overlay shortcuts.
http://
Processes can be viewed in system monitor, e.g. hud-service, unity-panel-
Monitoring activities is done by zeitgeist.
http://
Since Dash works with locate try in a terminal:
sudo updatedb
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#2 |
Thank you, Sam and sam. I now understand what is the dash and the HUD. And I will try updatedb the next time I experience the problem.
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#3 |
The problem has not appeared for about a week, so I consider my question solved. The hints on terminology were, in any case, very useful.
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#4 |
Thanks Sam_, that solved my question.
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#5 |
Just for the records: Today the problem reappeared (no applications in the dash, only recent files and downloads. So I tried "sudo updatedb". It took about two minutes to complete but did not help.
(I wish I had my old menu back.)
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#6 |
It's five days now that my dash does not show any applications, just "recent files" and "downloads". In the meantime I memorized the names of the applications I normally use, so I can start them from a terminal, and I put shortcuts on my desktop. Still this is just a workaround.
Has anybody got an idea what I can do to get my dash working again? Or, since I am not too fond of the dash anyhow, how I can get a decent way of navigating through Ubuntu applications?
Many thanks,
Aisano
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#7 |
When you click on the application lens there're no applications displayed?
http://
The 'home lens' displays recently, last used and others.
The 'application lens' displays all installed apps.
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#8 |
Thanks for the image to avoid confusion about terminology. my home lens displays just two sections, which I (naively) translate as "recently used" and "download". The application lens is completely empty; clicking on "filter results" does not change anything, as there is nothing to filter. Until about a week ago the two lenses were mostly full of applications. The present problem was only sporadic; now it seems to be permanent.
I reboot every day, and I usually accept all proposed updates, though for many weeks update-manager would not show me the changes (suggesting me a TTT address instead).
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#9 |
I just got an e-mail that Sam_ pointed me to bug 962265 but this hint does not appear here. I do not, however, think that bug 962265 is my problem as it affects only the home lens. I have used the home lens for several weeks until the problems appeared, and I think it is the empty application lens that is at the root of the problem. I understand the application lens is almost never supposed to be empty. Please correct me if I am wrong here.
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#10 |
Please close all open applications and open a terminal only: ctrl+alt+t
Enter:
sudo apt-get clean
sudo apt-get update
sudo apt-get upgrade
sudo apt-get -f install
Please post complete output here. Thanks.
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#11 |
It is like witchcraft: I had the problem for five consecutive days but when I had posted it here it disappeared. Both my home lens and my application lens now display applications again. But I will post my apt-get output here all the same.
I had not updated for two days so I got a couple of lines under "update" / "upgrade". I forgot to switch LANG to English, so the output is a mixture of German and Esperanto.
As presently I cannot reproduce the problem I am setting this question to "solved" again. Many thanks.
$ sudo apt-get clean
$ sudo apt-get update
Ign http://
Ign http://
OK http://
OK http://
OK http://
OK http://
Ign http://
Ign http://
Ign http://
Ign http://
OK http://
OK http://
OK http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
Ign http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
Hole:1 http://
Hole:2 http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
Hole:3 http://
Hole:4 http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
OK http://
Es wurden 6560 B in 24 s geholt (265 B/s)
Paketlisten werden gelesen... Fertig
$ sudo apt-get upgrade
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut
Statusinformationen werden eingelesen... Fertig
Die folgenden Pakete werden aktualisiert (Upgrade):
gir1.
gnome-panel gnome-panel-data gnome-settings-
libgnome-
libpanel-
unity-
20 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht aktualisiert.
Es müssen 7577 kB an Archiven heruntergeladen werden.
Nach dieser Operation werden 56,3 kB Plattenplatz freigegeben.
Möchten Sie fortfahren [J/n]? J
Hole:1 http://
Hole:2 http://
Hole:3 http://
Hole:4 http://
Hole:5 http://
Hole:6 http://
Hole:7 http://
Hole:8 http://
Hole:9 http://
Hole:10 http://
Hole:11 http://
Hole:12 http://
Hole:13 http://
Hole:14 http://
Hole:15 http://
Hole:16 http://
Hole:17 http://
Hole:18 http://
Hole:19 http://
Hole:20 http://
Es wurden 7577 kB in 55 s geholt (136 kB/s)
(Legado de datumbazo ...793453 dosieroj kaj dosierujoj aktuale instalitaj.)
Ni prepariĝas por anstataŭi libpango1.0-dev 1.30.0-0ubuntu3 (uzante .../libpango1.
Elpakado de anstataŭanto libpango1.0-dev ...
Ni prepariĝas por anstataŭi gir1.2-pango-1.0 1.30.0-0ubuntu3 (uzante .../gir1.
Elpakado de anstataŭanto gir1.2-pango-1.0 ...
Ni prepariĝas por anstataŭi libpango1.0-0 1.30.0-0ubuntu3 (uzante .../libpango1.
Elpakado de anstataŭanto libpango1.0-0 ...
Ni prepariĝas por anstataŭi xkb-data 2.5-1ubuntu1.2 (uzante .../xkb-
Elpakado de anstataŭanto xkb-data ...
Ni prepariĝas por anstataŭi libpanel-applet-4-0 1:3.4.1-0ubuntu1 (uzante .../libpanel-
Elpakado de anstataŭanto libpanel-applet-4-0 ...
Ni prepariĝas por anstataŭi gir1.2-
Elpakado de anstataŭanto gir1.2-
Ni prepariĝas por anstataŭi gnome-control-
Elpakado de anstataŭanto gnome-control-
Ni prepariĝas por anstataŭi gnome-panel 1:3.4.1-0ubuntu1 (uzante .../gnome-
Elpakado de anstataŭanto gnome-panel ...
Ni prepariĝas por anstataŭi gnome-panel-data 1:3.4.1-0ubuntu1 (uzante .../gnome-
Elpakado de anstataŭanto gnome-panel-data ...
Ni prepariĝas por anstataŭi gnome-settings-
Elpakado de anstataŭanto gnome-settings-
Ni prepariĝas por anstataŭi libgnome-
Elpakado de anstataŭanto libgnome-
Ni prepariĝas por anstataŭi gnome-control-
Elpakado de anstataŭanto gnome-control-
Ni prepariĝas por anstataŭi libgtkhtml-
Elpakado de anstataŭanto libgtkhtml-
Ni prepariĝas por anstataŭi libgtkhtml-4.0-0 4.2.2-1ubuntu1.1 (uzante .../libgtkhtml-
Elpakado de anstataŭanto libgtkhtml-4.0-0 ...
Ni prepariĝas por anstataŭi libgtkhtml-
Elpakado de anstataŭanto libgtkhtml-
Ni prepariĝas por anstataŭi unity-lens-video 0.3.5-0ubuntu1.1 (uzante .../unity-
Elpakado de anstataŭanto unity-lens-video ...
Ni prepariĝas por anstataŭi unity-scope-
Elpakado de anstataŭanto unity-scope-
Ni prepariĝas por anstataŭi xdiagnose 2.5.1 (uzante .../xdiagnose_
Elpakado de anstataŭanto xdiagnose ...
Ni prepariĝas por anstataŭi xserver-
Elpakado de anstataŭanto xserver-
Ni prepariĝas por anstataŭi gnome-settings-
Elpakado de anstataŭanto gnome-settings-
Procezado de ekigiloj por man-db ...
Procezado de ekigiloj por hicolor-icon-theme ...
Procezado de ekigiloj por desktop-file-utils ...
Procezado de ekigiloj por bamfdaemon ...
Rebuilding /usr/share/
Procezado de ekigiloj por gnome-menus ...
Procezado de ekigiloj por libglib2.0-0 ...
Procezado de ekigiloj por gconf2 ...
Procezado de ekigiloj por menu ...
Procezado de ekigiloj por ureadahead ...
ureadahead will be reprofiled on next reboot
Ni alĝustigas libpango1.0-0 (1.30.0-0ubuntu3.1) ...
Ni alĝustigas gir1.2-pango-1.0 (1.30.0-0ubuntu3.1) ...
Ni alĝustigas libpango1.0-dev (1.30.0-0ubuntu3.1) ...
Ni alĝustigas xkb-data (2.5-1ubuntu1.3) ...
Ni alĝustigas libpanel-applet-4-0 (1:3.4.
Ni alĝustigas gir1.2-
Ni alĝustigas gnome-control-
Ni alĝustigas gnome-panel-data (1:3.4.
Ni alĝustigas gnome-panel (1:3.4.
Ni alĝustigas gnome-settings-
Ni alĝustigas libgnome-
Ni alĝustigas gnome-control-
Ni alĝustigas libgtkhtml-
Ni alĝustigas libgtkhtml-4.0-0 (4.2.2-1ubuntu1.2) ...
Ni alĝustigas libgtkhtml-
Ni alĝustigas unity-lens-video (0.3.5-0ubuntu1.2) ...
Ni alĝustigas unity-scope-
Ni alĝustigas xdiagnose (2.5.2) ...
Ni alĝustigas xserver-
Ni alĝustigas gnome-settings-
Procezado de ekigiloj por libc-bin ...
ldconfig deferred processing now taking place
Procezado de ekigiloj por menu ...
$ sudo apt-get install
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut
Statusinformationen werden eingelesen... Fertig
0 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht aktualisiert.