[dash] Icons not found in the current theme should fall back to a default icon

[Dennis Baudys]

In current Natty Beta running with Unity 2D, when clicking on the launcher entry 'applications' and scrolling down a litte bit, you'll notice that the application 'Launcher & Menus' has no icon (as well as the computer-janitor for which I already reported a bug).
I dont't know, if this this the right package to report against.

Thanks.

[Aritchie (aritchie)]

What build of unity-2d are you using? I am running bs531 on 11.04 beta 1 and both apps have icons on my system.

[Dennis Baudys (thecondordb)]

Hi Aritchie!

According to the information that 'apt-cache show unity-2d' is giving me, I'm using:

unity-2d 3.8.2-0ubuntu1
size: 6546 (bytes download?)
MD5: aac97b060c8718037a33b0df119625da

I have no idea how to find out which build of unity-2d I'm using but I'm running

Ubuntu 11.04 Natty 32-Bit (development branch), fully updated as of now,
with Kernel 2.6.38-8-generic # 42-ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux

inside VirtualBox.

[Aritchie (aritchie)]

Yeah, mine beta 1 is updated with the latest updates as well. You should be able to go into Software Center - type unity-2d in the Search box and it should display "Unity-2d in the list. Click "More Info" and should tell you the build. That is what I did and it reported it as bzr531. Try this and see what it reports.

[Dennis Baudys (thecondordb)]

I'm sorry, Aritchi.

My Software Center does not display any build information. Please see the attached screenshot, if you do not believe me :)

    As I'm using a German localization, I even checked the original strings and corresponding German translations regarding these lables 'Version: …' etc. in software-center (for Natty) as well as in software-store (in Trunk) – just to be sure, there is nothing missing like %s or so. Everything's fine in the translations.

    A remark: I'm using this Natty Beta since it was Alpha inside VirtualBox and I've always upgraded it properly. But in the beginning, there was not unity-2d installed (strangely enough) and because my 3D support is not working in the virtual machine, I had to manually install unity-2d by simply entering »sudo apt-get install unity-2d«, which worked fine at that time. After rebooting and choosing »Unity 2D« as my session to log in, I have been using Unity-2D without any strangenesses beside the usual bugs. So a few minutes ago, I wondered, if this manual installation some time ago could have caused my unity-2d to be different from the one that is offered in the Software Center, so I re-installed unity-2d via Software Center and re-logged in to Ubuntu – no difference (unity-2d has the same version as seen in the screenshot, that I took from the current one now, icons still missing and software-center isn't displaying any build information).

    And if there's no black magic involved in this issue, I cannot tell why you see some 'build information' and I do not. And I also wonder, why these two icons are missing. Maybe it has something to to with high-res/low-res/vector icons? Or with my VirtualBox guest system screen resolution of 1024 x 768 pixels, true-color? Maybe you want to check out the bug 734476 [1], too.

    Thanks for your patience and for investigating this. As soon as my colleagues from the Ubuntu German Translations Team are awake, I'll ask them, if they're missing these icons, too.

[1] https://bugs.launchpad.net/ubuntu/+source/computer-janitor/+bug/734476

[Hendrik Schrieber (hennekn)]

I'm experiencing the same problems with current daily build and all updates applied.

When I start the VM and open controll center at first it shows all icons and looks like it is supposed to do. But after a few seconds, without me doing anything, it falls back to the Gnome 2 icons and Gnome 2 appearence partially (at least I think that's what it is), icons for Launcher & Menus, computer janitor etc. get lost and control center only shows a red cross instead of the icon.

I attached two screenshots: 1 when opening control center after starting the VM and 2 after waiting a few seconds.

[Olivier Tilloy (osomon)]

@Dennis & Adam: the build number information will be available depending on whether you installed unity-2d from the main archive or from the daily builds PPA. Adam, you are using the version from the PPA, whereas Dennis uses the version from the archive, hence the discrepancy.

@Hendrik: you are experiencing a different issue, likely that gnome-settings-daemon, in charge of the GTK theme, crashed. Re-launching it should fix the issue.

[Hendrik Schrieber (hennekn)]

It's not only the settings window, it's the whole system that falls back. I reported a new bug, since restart only works around the problem for a few seconds.

[Dennis Baudys (thecondordb)]

Thanks Olivier!

I can confirm that executing 'gnome-settings-daemon' in a terminal not only brings back the icons for 'Launcher & Menus' and 'Computer Janitor' but also switches the theme back to the current nice one. I must have missed the fact that I had the old school graphics.

So we can now refine the problem of missing icons: those are only missing when using the old school fallback theme. Therefore I'll change the title of this bug report now. But I think the package that this bug report should be filed against should change from 'unity-2d' to - I just dont know what package. Maybe '… theme … something' or '… gnome-2 … something'. It appears to me now that those two icons are only missing in that old gnome 2 theme.

Please feel free to correct the project/package name this bug report is filed against.

Thanks for sorting this out.

[Olivier Tilloy (osomon)]

The icons (computerjanitor and ccsm, respectively) are only present in the Humanity icon theme, which is why they don’t appear in the default fallback theme. That would be a bug in the package for the default theme, but I doubt they would be considered standard enough to be included there.

However unity behaves a bit better: when it cannot find the icon, it falls back to a default "empty document" icon (text-x-preview), instead of displaying nothing.