Hi Andrea, I'd be happy to test, but what am I testing when applying these boot parameters? In other words: what should I report? And just to be sure, I THINK I own an IVB but intel is not very vocal about it when searching for familyname. I have a vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i7-3537U CPU @ 2.00GHz stepping : 9 microcode : 0x17 Regards, Martin On maandag 29 augustus 2016 20:48:43 CEST Andrea Arcangeli wrote: > On Mon, Aug 29, 2016 at 10:24:38AM +0300, Jani Nikula wrote: > > If it's an Iybridge, there's no low vswing, and that explanation is > > false. You can verify by trying i915.edp_vswing=1 or i915.edp_vswing=2 > > on an unpatched kernel. > > CC'ed Martin who filed the bz, he can reproduce too > https://bugzilla.kernel.org/show_bug.cgi?id=151731 > > Since you can reproduce would you have the time to test the two above > options on stock 4.7.x/4.8-rc and help tracking this down? I'm afraid > I won't be able to test it today and I'll be mostly offline for a week > starting tomorrow. > > Thanks, > Andrea _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx