[Bug 69528] intel driver shows blank screen when set to UXA only after cold start

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69528

--- Comment #10 from 3aditya3 at gmail.com ---
Using SNA:

If I go to VLC preferences->Video and set Ouput to "X11 video output (XCB)",
the video runs properly.

Setting the VLC output to "XVideo output (XCB)" causes the problem described in
comment 6.

"OpenGL GLX video output (XCB)" works as well, but with noticeably more CPU
usage than "X11 video output (XCB)".

I am using Xfce 4.10, so the window manager is xfwm4. I had Xfce's
(Settings->Window Manager Tweaks) inbuilt compositor turned on.

So execpt "Xvideo output" and appearance of minor artifacts on Xfce's panel
which go away once I hover mouse pointer over the panel, over all graphics is
working nice enough.

# cat /etc/X11/xorg.conf 
Section "Device"
    Identifier "device0"
    Driver "intel"
    Option "AccelMethod" "SNA"
EndSection

Section "Screen"
    Identifier "screen0"
    DefaultDepth 24
EndSection

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