[Bug 102384] New: corruption/glitch on right click contextual menu, drop down menus with DRI3 and glamor in kwin

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102384

            Bug ID: 102384
           Summary: corruption/glitch on right click contextual menu, drop
                    down menus with DRI3 and glamor in kwin
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: mister.freeman at laposte.net
        QA Contact: xorg-team at lists.x.org

Created attachment 133735
  --> https://bugs.freedesktop.org/attachment.cgi?id=133735&action=edit
xorg log

Hello,

I have a radeon HD4650 Pcie ( chipset RV730 pro ), I use archlinux 64 bits,
xf86-video-ati 1:7.9.0-2,

as desktop I use plasma 5 ( kde ), opengGL2 is enabled in kwin for desktop
effects,

DRI 3 and glamour are enabled, tearfree is "off", and I have set vsync in kwin
to "automatic", I see no tearing, all is ok in videos and 3D games,

my radeon conf file in /etc/X11/xorg.conf.d/

Section "Device"
    Identifier "Radeon"
    Driver "radeon"
    Option "TearFree" "off"
    Option "DRI" "3"
    Option "AccelMethod" "glamor"
EndSection

my problem : I notice sometimes glitchs, corruption when I do a righ-click (
contextual menu ) and when I use "dropdown menu" ( in dolphin, firefox ), the
problem occurs randomly and not often ( 10% of chance to trigger the bug when I
do a right click for the contextual menu ),

when the bug occurs I see in the contextual menu a mix of displays ( for
example if dolphin is in the background and firefox on top then in the
contextual menu I can see a mix of Dolphin/firefox screens, all is mixed
together, and sometimes colors blink inside the contextual menu )

if I retry then the bug disapears immediatly and the contextual menu is
correctly displayed,

it's a random bug, sometimes this bug will not occur for 2 hours, and when the
bugs occurs it will disapear quickly if I re-click with the mouse,

is it a known bug when dri3 and glamour are enabled in kwin/plasma 5 ?

thanks

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