From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 32789] VSync loss after rotation to portrait mode
Date: Mon, 3 Jan 2011 06:11:26 -0800 (PST)
Message-ID: <20110103141126.D976E13004E@annarchy.freedesktop.org>
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https://bugs.freedesktop.org/show_bug.cgi?id=32789
--- Comment #1 from Maarten Maathuis 2011-01-03 06:11:26 PST ---
Landscape mode is the default rendering mode (it's called normal), anything
else causes the X server to create a new frontbuffer and render with a
transform onto this rotated frontbuffer (this process isn't backbuffered last
time i checked). Everytime the X server receives "damage" on the "normal"
frontbuffer it will update the rotated frontbuffer. This transform happens
outside compiz/opengl (which was used to get the vsync). This is just a generic
story, not sure if this is easy to fix for amd hardware.
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