On Mon, 2016-12-12 at 12:26 -0700, Chris Murphy wrote:
> On Mon, Dec 12, 2016 at 12:23 PM, Tom Hughes <[email protected]> wrote:
> > 
> > On 12/12/16 18:56, Chris Murphy wrote:
> > 
> > > 
> > > The firmware https://01.org/linuxgraphics/intel-linux-graphics-fi
> > > rmwares
> > > is not included in Fedora Workstation by default, I'm also not
> > > finding
> > > them in any repo.
> > > 
> > > I learned about this firmware from a bug I filed upstream and
> > > it's
> > > recommended that it be used.
> > > https://bugs.freedesktop.org/show_bug.cgi?id=99057
> > > 
> > > Are there problems including it in Fedora?
> > 
> > 
> > It's in linux-firmware isn't it? Here's what I see on F25:
> > 
> > dunsmere [~] % rpm -ql linux-firmware | fgrep i915
> > /usr/lib/firmware/i915
> > /usr/lib/firmware/i915/bxt_dmc_ver1.bin
> > /usr/lib/firmware/i915/bxt_dmc_ver1_07.bin
> > /usr/lib/firmware/i915/kbl_dmc_ver1.bin
> > /usr/lib/firmware/i915/kbl_dmc_ver1_01.bin
> > /usr/lib/firmware/i915/skl_dmc_ver1.bin
> > /usr/lib/firmware/i915/skl_dmc_ver1_23.bin
> > /usr/lib/firmware/i915/skl_dmc_ver1_26.bin
> > /usr/lib/firmware/i915/skl_guc_ver1.bin
> > /usr/lib/firmware/i915/skl_guc_ver4.bin
> > /usr/lib/firmware/i915/skl_guc_ver6.bin
> > /usr/lib/firmware/i915/skl_guc_ver6_1.bin
> > /usr/share/doc/linux-firmware/LICENSE.i915
> 
> Indeed it is, I've updated the bug. But still something unexpected is
> going on:
> 
> [    1.812375] [drm] Replacing VGA console driver
> [    1.818937] [drm] Supports vblank timestamp caching Rev 2
> (21.10.2013).
> [    1.818941] [drm] Driver supports precise vblank timestamp query.
> [    1.827858] [drm] Finished loading i915/skl_dmc_ver1_26.bin
> (v1.26)
> [    1.828224] vgaarb: device changed decodes:
> PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> [    1.835177] [drm] GuC firmware load skipped

"modinfo i915 | grep guc" says:

parm: enable_guc_loading:Enable GuC firmware loading (-1=auto, 0=never 
[default], 1=if available, 2=required) (int)

I'd guess upstream just isn't ready to enable GUC firmware loading by
default. If you set that parameter to -1 (autodetect) it might work.

Dan
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