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(parent: 33192e9) | patch
drm/i915: Fix DDC on some systems by clearing BIOS GMBUS setup.
authorEric Anholt <eric@anholt.net>
Tue, 1 Dec 2009 19:56:30 +0000 (11:56 -0800)
committerEric Anholt <eric@anholt.net>
Tue, 1 Dec 2009 19:56:30 +0000 (11:56 -0800)
commit5e265831092b3aed177d2bb0916a92957073c33c
tree01dfcd607f90f250fb27cb303747b3d770879742tree | snapshot
parent33192e905ebc57d59408be222f9a95487df42ffacommit | diff
drm/i915: Fix DDC on some systems by clearing BIOS GMBUS setup.

This is a sync of a fix I made in the old UMS code.  If the BIOS uses
the GMBUS and doesn't clear that setup, then our bit-banging I2C can
fail, leading to monitors not being detected.

Signed-off-by: Eric Anholt <eric@anholt.net>
drivers/gpu/drm/i915/i915_reg.h diff | blob | history
drivers/gpu/drm/i915/i915_suspend.c diff | blob | history
drivers/gpu/drm/i915/intel_drv.h diff | blob | history
drivers/gpu/drm/i915/intel_i2c.c diff | blob | history
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