[Bug 155753] New: Images in kde4 appear often with wrong colors

[Jacopo Ghiglieri]

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http://bugs.kde.org/show_bug.cgi?id=155753         
           Summary: Images in kde4 appear often with wrong colors
           Product: kde
           Version: unspecified
          Platform: Debian testing
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs kde org
        ReportedBy: sbriglie gmail com


Version:            (using KDE KDE 4.0.0)
Installed from:    Debian testing/unstable Packages
OS:                Linux

A picture is worth a thousand words: http://utenti.lycos.it/nedellis/snapshot1.png . Look in particular at the buttons in konqueror, at the google logo in konqueror and note that firefox displays it correctly, at the K-menu at the bottom left (it should be blue) and analogously for the laptop icon at the bottom right.
The bug seems to have a certain randomness: sometimes icons in dolphin appear blue, as they should be, and sometimes appear orange, for example.
Gtk apps, such as firefox, work fine.
System info:
Debian testing/unstable on a ppc machine (Apple Powerbook G4 12 inches)
kde4 installed with the debian experimental packages.
Xorg server 1.4 with nv driver.
I have never seen anything like that with gnome or xfce4. I have never tried kde3 on this laptop. I put "kde" as the involved component because this bug seems to happen in all kde4 applications. It is debatable whether this is a kde4 or a qt4 bug (also the swapped colors makes me think of a possible endiannes issue, but this could be a long shot). Anyhow I've checked debian's bugzilla for a similar bug, both in kde4 and in qt4, with no results.
If needed I can provide other screenshots.