[Intel-gfx] [PATCH] uxa: fix getmsc to not fail hard

[Chris Wilson]

On Wed, May 21, 2014 at 12:41:58PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> If some outputs go away we race with this call and apps
> get X errors and fall over. Do what SNA does and don't
> bother trying.

Horrible clients is why I gave up trying to report BadMatch for the
inactive pipe. Though it has been a long time since the kernel turned
off CRTCs without intervention from userspace.

This is a useful safeguard, though it angers the OML sync proponents.
Pushed, thanks.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre