[PATCH] Avoid segfaults in XF86VidMode GammaRamp functions if randr_crtc is NULL

[Keith Packard]

On Tue, 26 Jan 2010 22:25:04 -0800, Alan Coopersmith <alan.coopersmith at sun.com> wrote:

> Fixes crash when xscreensaver tries to use GammaRamp calls to fade out
> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6915712

I've posted a more comprehensive patch for this which allows
compat_output to point at any output and deals with missing crtc or
randr_crtc elements. It's on the compat_output branch in the server main
tree.

Testing and review welcome; Eric Anholt has tested it and found that it
fixes a known crash in his environment, so we're getting somewhere at least.

-- 
keith.packard at intel.com
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