Re: 3.6.0+ (GIT) -- WARNING: at drivers/gpu/drm/i915/intel_display.c:1271intel_disable_pipe+0xab/0x12e() -- plane B assertion failure, should be offon pipe B but is still active

From: Daniel Vetter
Date: Wed Oct 10 2012 - 17:49:55 EST


On Thu, Oct 4, 2012 at 4:56 PM, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> This should help: https://patchwork.kernel.org/patch/1436231/
>
> It's not merged yet since it cause a black screen on resume on one of
> my really old machines. Issue isn't new at all, but the new modeset
> code is _much_ more anal about cross-checking the hw state with what
> we expect to be there.

I think I've tracked down the gen2 issue I've seen, so the above
linked patch can go in. Does it get rid of the WARN backtraces on your
machine? A tested-by would be most welcome ...

Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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