Bug 177941 - Panel only transparent at certain sizes when at top of screen
Summary: Panel only transparent at certain sizes when at top of screen
Status: RESOLVED WORKSFORME
Alias: None
Product: plasma4
Classification: Plasma
Component: panel (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: triaged
: 178234 (view as bug list)
Depends on:
Blocks:
 
Reported: 2008-12-16 23:42 UTC by Mark Eaton
Modified: 2009-05-01 14:52 UTC (History)
7 users (show)

See Also:
Latest Commit:
Version Fixed In:


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Description Mark Eaton 2008-12-16 23:42:34 UTC
Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

If I adjust the size, making it thicker or thinner, it is only transparent at certain sizes. For the other sizes it just turns blue. If the panel is at the bottom of the screen it stays transparent for all sizes.

This is with the 4.2 beta1 binaries from kubuntu using the default plasma theme.
Comment 1 Aaron J. Seigo 2008-12-17 04:51:18 UTC
sounds like the pixmap cache not being invalidated when composite is turned on. try changing the Plasma theme, then switch back to the theme you were on and see if that helps the symptom go away.
Comment 2 Mark Eaton 2008-12-17 07:41:33 UTC
If I change themes and back again it does indeed make it transparent and afterwards I seem to be able to resize it without the issue occuring again
Comment 3 Aaron J. Seigo 2008-12-17 20:41:37 UTC
ok, so indeed it was the pixmap cache not being invalidated when the composition setting changed.
Comment 4 Aaron J. Seigo 2008-12-22 01:18:43 UTC
*** Bug 178234 has been marked as a duplicate of this bug. ***
Comment 5 Alain Perrot 2009-02-27 13:08:34 UTC
Similar problem here with KDE 4.2.0 (from Kubuntu 8.10 packages).

My panel (full width at the bottom of the screen) sometimes becomes solid blue when logging in KDE (it was transparent when I previously logged out). All other desktop effects are still available when this occurs.

I used to solve the issue by removing the panel and creating a new one from scratch.

As suggested by Aaron in comment #1, changing the Plasma theme and switching back to Oxygen theme also restores the panel transparency.
Comment 6 Sean 2009-03-12 17:17:16 UTC
I can confirm this bug.  Changing from Oxygen to another theme didn't respect the new theme's panel background or enable transparency unless I shrank the panel width.  Going back to full width changed panel background back to opaque blue from Oxygen theme.

Switching back to Oxygen and then to the new theme again seemed to fix this again.
Comment 7 FiNeX 2009-04-26 00:23:58 UTC
I cannot reproduce the bug anymore (I remember it some weeks ago). I'm using current trunk r959285.
Comment 8 Ruchir Brahmbhatt 2009-05-01 14:52:53 UTC
I can't reproduce on r961515.