Date: Fri, 6 Feb 2015 11:15:08 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: "freebsd-x11@freebsd.org" <x11@freebsd.org> Subject: Intel i915 support for RC6 Message-ID: <CAN6yY1uUUMt5riU3JNCLRR_85gOho35EMDm33052kLdOT0kvpQ@mail.gmail.com>
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It appears that at least HEAD now has support for RC6 on Intel i915 GPUs. but I have seen a couple of messages about setting drm.i915.enable_rc6 to '7'. Why '7'? I can only find references in Linux-land to setting it to '1' to enable or '0' to disable. Is '7' reasonable and, if so, what do the other two bits do? I have found very little information about it other than that it can have nasty failure modes on some Sandy Bridge systems and that it should be safe on all Ivy Bridge systems. Thanks for any information or references. -- Kevin Oberman, Network Engineer, Retired E-mail: rkoberman@gmail.com
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