[PATCH] i915: initialize CADL in opregion

[Lekensteyn]

On Thursday 28 June 2012 13:22:02 Daniel Vetter wrote:
> On Thu, Jun 28, 2012 at 1:05 PM, Daniel Vetter <daniel at ffwll.ch> wrote:
> > - When loading the i915.ko with the CADL patch the screen went black
> > (like at boot), but with some excessive vt-switching and X restarting
> > I've managed to light it up. Although it is flickery as hell,
> > especially the lower part of the screen. And if the screen is somewhat
> > stable, I just get the upper part of the screen duplicated in the
> > lower part.
> 
> Just a small note: Reloading i915.ko without the CADL patch fixes
> things. No idea how that could happen ...
> -Daniel

Does CADL gets reinitialised to zeroes on module load? (I think so, but could 
you verify that by checking the contents of that field after loading the module 
w/ and w/o the CADL patch?)

Peter