John,
This appears to be a Catalyst (fglrx) driver bug. Please try removing
the driver and using radeon instead.
Alternatively you can try reverting back to the rendering method used in Ubuntu
12.04:
CCSM > OpenGL >
framebuffer_object = OFF
vertex_buffer_object = OFF
always_swap_buffers = OFF
** Summary changed:
- Unity flickering on window updates
+ [fglrx] Unity flickering on window updates
** Also affects: fglrx-installer (Ubuntu)
Importance: Undecided
Status: New
** Changed in: fglrx-installer (Ubuntu)
Status: New => Incomplete
** Changed in: unity (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1070275
Title:
[fglrx] Unity flickering on window updates
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