[Bug 103486] Tonga DC vblank_mode=0 not working as expected fullscreen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103486

--- Comment #5 from Andy Furniss <adf.lists at gmail.com> ---
glxgears is no good for this one, it doesn't seem to really get fullscreen.

I don't use a compositing window manager, if you do I guess you'll need to set
it to disable compositing for full screen.

To seeing if I can get full screen tearing I would use something like - 

vsync720p60.mp4 -
https://drive.google.com/file/d/0BxP5-S1t9VEEejRkMzlRck5GNTQ/view?usp=sharing

With no compositing and TearFree off I expect to see tearing playing like -

vblank_mode=0 mpv --vo=opengl -fs vsync720p60.mp4

For the frame rate capping issue I noticed with xonotic.

In the settings menu, video tab, make sure vertical synchronization is
unckecked.
On the misc tab check show frames per second.

When on the menu screen fps should now be seen lower left.
For "bad" it's 120 for good it will be 200. Running a timedemo will also show
being capped at 120 for "bad" but unlimited for "good".

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