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[Bug 824099] Re: Max GL texture size can break multi-head

To: compiz@xxxxxxxxxxxxxxxxxxx
From: HyperHacker <824099@xxxxxxxxxxxxxxxxxx>
Date: Tue, 29 Nov 2011 00:59:09 -0000
Reply-to: Bug 824099 <824099@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I should note that the description is somewhat inaccurate:
1) Multi-head isn't really the problem, just the easiest way to reproduce it. A single display with a high enough resolution can trigger it as well.
2) There are two separate limits: max texture size and max framebuffer size. The former can be worked around by breaking large windows into multiple textures, but this won't help the latter. GL init fails and all drawing operations do nothing, leaving the user with a display of random uninitialized VRAM (i.e. corrupted display, thick slanted lines, chunks of wallpaper etc).

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https://bugs.launchpad.net/bugs/824099

Title:
  Max GL texture size can break multi-head

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