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Problems at use | Problèmes à l'utilisation

Subjects Author Language Messages Last message
[Locked] 3.4.0 blinking icons
taiebot65 English 14

taiebot65, Friday 24 October 2014 à 19:59


Subscription date : 26 October 2008
Messages : 1904
On fresh update to 14.10 Lubuntu my dock started to blink a lot

Might be opengl related but for example if i refresh the mail applet the icon goes blinking until it sets to the correct parameters

The system monitor is moving weirdly from left to right like every second actually its link to the clock applet if i remove the seconds from the clock applet the movement seems to disappear

I did not notice this on the weekly ppa on 14.04

taiebot65, Friday 24 October 2014 à 20:08


Subscription date : 26 October 2008
Messages : 1904
Launching with cairo-dock -c seems to work normally anyone noticing this problem as well.

Guest, Saturday 03 January 2015 à 01:41

Just updated to Lubuntu 14.10 today, having the same issue here. Runs on a late 2007 MacBook with Intel 945GM graphics card. Like taiebot65 stated out, this is likely to be related to OpenGL. Starting with "cairo-dock -c" works for me with minor display bugs in the "System-Monitor" applet.

If that helps: This behaviour shows up only in a second dock on top of the screen. The primary dock displays fine.

taiebot65, Tuesday 06 January 2015 à 23:07


Subscription date : 26 October 2008
Messages : 1904
OK thanks for confirming this is certainly not a problem with cairo-dock but with mesa

Guest, Tuesday 13 January 2015 à 19:12

Could the behaviour be related to the following errors? I get them in most applications, when they start.

libGL error: Version 4 or later of flush extension not found
libGL error: failed to load driver: i915


The blinking icons are still annoying ...

brianw, Wednesday 14 January 2015 à 17:47


Subscription date : 25 April 2012
Messages : 270
I had this issue (flashing and blinking when I went to my second dock which displays the clock, sys monitor, and sound.) on my laptop running Debian and cairo-dock from the Debian repositories and it went away after I did my last update the other day. I haven't gotten around to setting up the cairo-dock official repository yet and still use the Debian repository on that system so all the plugins are listed separately. Not sure if it was a plugin update (I don't think it was the plugin) that fixed the issue or one of the video related drivers.

Guest, Thursday 15 January 2015 à 14:58

Thanks for the reply. Well, this is definitely not related to a special dock or plugin. Also I use a pretty similar setup to @brianw's with two docks. Sometimes, the whole dock

Just yesterday an update for the mesa driver was added to (L)ubuntu/debian - no change for me. Also I don't have a single clue about the OpenGL/Mesa related stuff, I'm more and more sure the above mentioned errors are causing this. As it is really hard to find on the internet, I am referring to this bug report: https://bugs.kde.org/show_bug.cgi?id=340254

I'll wait for this fix and report back here, if it the problems with cairo-dock.

Guest, Saturday 07 February 2015 à 23:00

Finally, at least the before mentioned OpenGL related bugs seem to be fixed by todays upgraded intel driver. Behaviour is still the same though, sorry. Any news for a fix?

Guest, Saturday 11 April 2015 à 18:13

Just restarted cairo-dock manually. It shows the following warnings:

warning : (/build/buildd/cairo-dock-3.4.99.alpha1.1~20150103~git1952~eebafbc/src/implementations/cairo-dock-egl.c:gldi_register_egl_backend:232)
Cairo-Dock was not built with EGL support
warning : (/build/buildd/cairo-dock-3.4.99.alpha1.1~20150103~git1952~eebafbc/src/implementations/cairo-dock-glx.c:_initialize_opengl_backend:129)
couldn't find an appropriate visual, trying to get one without Stencil buffer
(it may cause some little deterioration in the rendering) ...

============================================================================
Cairo-Dock version : 3.4.99.alpha1
Compiled date : Jan 3 2015 15:43:55
Built with GTK : 3.12
Running with OpenGL: 1
============================================================================


Sounds like this causes the flickering. Any hints on that?

antis81, Friday 24 April 2015 à 15:31


Subscription date : 24 April 2015
Messages : 4
Guest :
Just restarted cairo-dock manually. It shows the following warnings:

warning : (/build/buildd/cairo-dock-3.4.99.alpha1.1~20150103~git1952~eebafbc/src/implementations/cairo-dock-egl.c:gldi_register_egl_backend:232)
Cairo-Dock was not built with EGL support
warning : (/build/buildd/cairo-dock-3.4.99.alpha1.1~20150103~git1952~eebafbc/src/implementations/cairo-dock-glx.c:_initialize_opengl_backend:129)
couldn't find an appropriate visual, trying to get one without Stencil buffer
(it may cause some little deterioration in the rendering) ...

============================================================================
Cairo-Dock version : 3.4.99.alpha1
Compiled date : Jan 3 2015 15:43:55
Built with GTK : 3.12
Running with OpenGL: 1
============================================================================


Sounds like this causes the flickering. Any hints on that?


Updated to version from repository (3.4.1) and Lubuntu 15.04. Behaviour and error message is still the same. Do I have to compile by myself with EGL support enabled?

Guest, Sunday 26 April 2015 à 06:34

Think I am having a similar problem with Ubuntu 15.04. Dock won't appear from auto-hide until mouse moved away, then dock flashes and sometimes only half appears. Won't hide until mouse clicked away from dock

Guest, Sunday 13 March 2016 à 10:10

Same there... Updating Ubuntu from 15.04 to 15.10 (Cairo-dock 3.4.1 in both distros) makes cairo-dock unusable.
output:
warning : (/build/buildd/cairo-dock-3.4.1/src/implementations/cairo-dock-egl.c:gldi_register_egl_backend:232)
Cairo-Dock was not built with EGL support
warning : (/build/buildd/cairo-dock-3.4.1/src/implementations/cairo-dock-glx.c:_initialize_opengl_backend:129)
couldn't find an appropriate visual, trying to get one without Stencil buffer
(it may cause some little deterioration in the rendering) ...


indirect OpenGL has no effect.
may be this is video driver or compiz issue, but is there any workarrounds?

Guest, Sunday 13 March 2016 à 10:12

I've found one:

LIBGL_ALWAYS_SOFTWARE=1 cairo-dock -o


in my case cairo-dock works fine, and no any overhead detected.

antis81, Sunday 08 May 2016 à 00:39


Subscription date : 24 April 2015
Messages : 4
Somehow I didn't get any notifications, sorry.

Guest :
I've found one:

LIBGL_ALWAYS_SOFTWARE=1 cairo-dock -o


in my case cairo-dock works fine, and no any overhead detected.


Yes, it works! Updated to Lubuntu 16.04 (with CD 3.4.1) and thus ran into this problem again. Turning on software rendering for glx-dock works pretty smooth for me too. Lotsa thanks! Seems like it is a problem on OpenGL versions <2.0.

Would be happy if that can be solved one day.

Problems at use | Problèmes à l'utilisation

Subjects Author Language Messages Last message
[Locked] 3.4.0 blinking icons
taiebot65 English 14


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