[Bug 204791] New: kde flashes old (cached?) screen from the last session during splash screen loading desktop

[Dan Duris]

https://bugs.kde.org/show_bug.cgi?id=204791

           Summary: kde flashes old (cached?) screen from the last session
                    during splash screen loading desktop
           Product: kde
           Version: 4.2.4
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: kdebugs at staznosti.sk


Version:            (using KDE 4.2.4)
OS:                Linux
Installed from:    Ubuntu Packages

I have this very very weird bug shown every time KDE loads.

While splash screen is showing slowly what parts of the KDE system are
initialized - e.g. hard drive icon etc., when Desktop icon is shown (or few
moments before), KDE shows screenshot of the last session when the session was
ended - e.g. for approximately three seconds screen from the last session is
shown (when I had Firefox opened, Firefox is shown as if the screenshot was
taken last time).

This "screenshot" (cached screen?) is also shown when Ubuntu changes mdoes from
text to graphics once KDE starts - it only flashes for half a second, then when
desktop icon is blinking, display shows this "screenshot" for approx. three
seconds.

This is quite a bug - first thing, it disrupts my privacy - e.g. I could had
personal notes on the screen when ending last session, secondly it destroys
splash screen for a while.

PS: I am using ATI/radeon driver, I am not sure if that is related:
glxinfo
name of display: :0.0   
display: :0  screen: 0  
direct rendering: Yes   
server glx vendor string: SGI
server glx version string: 1.2
....
client glx vendor string: SGI                                                 
client glx version string: 1.4

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