On Thu, Oct 03, 2013 at 01:31:26PM -0300, Rodrigo Vivi wrote: > Power Well in use forces constantly PSR to exit. > On recent Kernel I noticed that PSR Performance Counter was always 0 > indicating that PSR was never really achieved. > By masking LPSP, PSR can work normally and save power on Haswell. > > Two bugs had been raised with PSR flag enabled: > - "Screen flickers when booted by enabling PSR in the kernel (i915.enable_psr=1) , the system is booting to a gray screen." > - "When booting the DUT with PSR feature enabled in the kernel (i915.enable_psr=1) , the system is booting to a gray screen." > > Both bugs has been fixed by this patch. > > v2: proper comment for -fixes > > Tested-by: Selvaraj, Elavarasan <elavarasanx.selvaraj@xxxxxxxxx> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> Picked up for -fixes, thanks for the patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
