[Bug 111499] [bisected][skl] Graphical corruption in kwin effects

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111499

--- Comment #18 from Mike Lothian <mike at fireburn.co.uk> ---
So this is very strange

I change my xorg snippet from:

Section "Device"
        Identifier  "Radeon" 
        Driver      "modesetting" 
        Option      "DRI"   "3" 
EndSection

to:

Section "ServerFlags"
    Option "Debug" "dmabuf_capable"
EndSection

Section "Device"
    Identifier  "Intel Graphics"
    Driver      "modesetting"
    Option      "AccelMethod"    "glamor"
    Option      "DRI"            "3"
EndSection

Now at least kwin_x11 starts properly with the modesetting driver but I'm back
to seeing the strange graphical corruptions on the special effects

I see this in my xorg.0.log too:

[     4.106] (EE) AIGLX error: dlopen of /usr/lib64/dri/i965_dri.so failed
(/usr/lib64/dri/i965_dri.so: cannot open shared object file: No such file or
directory)
[     4.106] (EE) AIGLX error: unable to load driver i965
[     4.109] (II) IGLX: Loaded and initialized swrast
[     4.109] (II) GLX: Initialized DRISWRAST GL provider for screen 0

Will try with debug ""

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