[Bug 98979] [i915][HSW][PM] Unable to use GFX RC6 on Dell Precision M6800

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 19 08:33:04 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=98979

--- Comment #8 from Shawn Starr <shawn.starr at rogers.com> ---
Recant this: But I cannot get RC6 GFX power savings with CONFIG_DRM_I915_GVT=y
enabled. 


With .config using this:

CONFIG_DRM_I915_GVT=y
# CONFIG_DRM_I915_GVT_KVMGT is not set


I get:

PkgTmp GFX%rc6  GFXMHz Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
52   99.73     200    2.88    0.44   92.09    0.00    0.32    0.01    0.00

So, mearly enabing just the GVT part which won't load anyway
[   13.376558] [drm:intel_gvt_init [i915]] Unsupported device. GVT-g is
disabled


Does not impact i915.ko power savings

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