Based on the Fedora comments, this sounds like a bug specific to the DRM
used in the intel graphics driver.
** Also affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
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constant kernel message: [drm:drm_wait_vblank] *ERROR* failed to acquire vblank
counter, -22
https://bugs.launchpad.net/bugs/398292
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