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Date: Thu, 17 Apr 2014 00:46:00 +0300 From: Jani Nikula <jani.nikula@...ux.intel.com> To: imre.deak@...el.com, Daniel Vetter <daniel@...ll.ch> Cc: David Airlie <airlied@...ux.ie>, intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: Re: [Intel-gfx] REGRESSION 3.14 i915 warning & mouse cursor vanishing On Tue, 15 Apr 2014, Imre Deak <imre.deak@...el.com> wrote: > On Tue, 2014-04-15 at 21:43 +0200, Daniel Vetter wrote: >> On Mon, Apr 14, 2014 at 11:56:03AM -0700, Steven Noonan wrote: >> > On Mon, Apr 14, 2014 at 11:35:05AM -0700, Keith Packard wrote: >> > > Steven Noonan <steven@...inklabs.net> writes: >> > > >> > > > Was using my machine normally, then my mouse cursor vanished. After switching >> > > > to a VT and back to X11, my cursor came back. But I did notice a nasty trace in >> > > > dmesg (below). >> > > >> > > I don't think the trace below is related to the cursor disappearing. >> > >> > Any idea what the trace is all about then? Seems it has something to do >> > with runtime power management (maybe my aggressive kernel command-line >> > options are triggering it). >> >> Please test without them. Currently runtime pm should be disabled still on >> vlv (since it's incomplete in 3.14). If you've force-enabled that then you >> get to keep all pieces ;-) >> >> In general don't set any i915 options if you're not a developer or someone >> else who _really_ knows what's going on. > > Note that the lspci output and the > > [ 1795.275026] [drm:hsw_unclaimed_reg_clear] *ERROR* Unknown unclaimed > register before writing to 70084 > > line suggests HSW and the specs for ThinkPad Yoga suggests the same. But > I don't know how the vlv_* functions can possible end up in those traces > then, perhaps just a coincidence, random data on stack? I'm wondering the same. Perhaps double check your kernel build and modules are all right and matching? BR, Jani. > > For HSW the rc6 kernel option shouldn't make a difference. > > --Imre > > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@...ts.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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