Panels go completely transparent with compositing about marco HOT 22 CLOSED

yeah that happens for a long time with marco compositing
the bug is directly from gnome2, which is ported to mate as well

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Sigh, I recently said I was feeling a bit sorry for the MATE developers as they now have to deal with all the crap gnome never fixed.

The weird thing is that it is so random. Weeks with no issue and then constantly :(.

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@xpander69 What GFX do you get this on? Intel IGP by any chance?

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After some discussion on irc it seems this happens on machines that have shared gfx memory.

So far we have:
intel hd4000 (ivybridge), me and DiscipleOfDante (irc nick)
ATI x1300, flexiondotorg (irc nick)

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i had this on nvidia gtx 560Ti with prop drivers.
havent tested this with marco 1.6.2 however since i started using compton instead

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Just found this out today. On both my computers, one with Intel and the other with nVidia, compositing causes panels to disappear. The trigger was change the cell background in Libreoffice. Switched to xcompmgr.

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I can reproduce this every time I open libreoffice calc and change font's background color. hope this helps.

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yeap, using libreoffice it happens too

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Confirmed. MATE 1.8 users can switch to Metacity until a fix is available.

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I've had the exact same issue with metacity. So it's a GNOME 2 bug. Great. :/

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On Debian unstable with Sandy Bridge and mate 1.8 this not only happens with the panel, but also with other windows. With Haswell (HD4600) only the panel disappears.

To reproduce, start mate-maximus (from the package mate-netbook) or maximus, disable the maximation feature using dconf-editor (org.mate.maximus no-maximize). As soon as an unmaximized window is opened above a maximized one, the panel and (and maybe some other windows) will disappear.

I'm trying to use compton as workaround (#96), but it has some problems too.

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Can ppl try the patch in #107 and see if this helps?

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Yes, it helps. At least on the haswell Computer I can't reproduce it any more. I already got rid of compton :)

I will still have to try it on the Computer with the Sandy Bridge Graphics… it was a lot worse there.

EDIT:
That's great. It also solves the problems with the Sandy Bridge System. Thank you.

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#107 was merged, closing.

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Is this fix available in any of 1.8.x releases?

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@monsta no it is not, only in master.

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@infirit: is it planned for backporting to 1.8.x then?

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Yes, I just pushed 1.8.1 out onto the interwebs.

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Great, thanks.

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This needs to be reopened because it's still broken. I don't know what triggers it but it happened to me and now it won't come back no matter what I do. I've tried mate-panel --replace, mate-panel --reset, then --replace. I've tried killing it then reopening it and it just won't come back. It takes up the space and I can right click on it to bring up menus. I get this line on the terminal repeatedly:
(mate-panel:15694): GLib-CRITICAL **: g_hash_table_remove_internal: assertion 'hash_table != NULL' failed

I am not using the compositor.

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I'm experiencing this with mxlinux.

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I have not seen this sort of thing on Debian Unstable at all, even when I had a temporary test install of Calibre maybe a month or so ago for testing a tray issue. Anyway, try these tests:

1:
Are you using the system background, a user set color background, or a user set image background? These each use different code. If one is giving you trouble, right-click on any empty space on the panel, click "properties" and in the dialog that comes up open the "background" tab and try a different background. Then let us know what happened.

2: Try setting Calbre not to set a tray icon, and see what happens If this makes a difference then try the next test:

3: Try opening dconf-editor, going to org>mate>panel>general and try both TRUE and FALSE for "enable sni support" and see what happens.

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