[Bug 103997] [CNL] eDP + HDMI sometimes Hard Hang machine

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Dec 1 02:19:54 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=103997

James Ausmus <james.ausmus at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from James Ausmus <james.ausmus at intel.com> ---
Issue was that we were not masking out the previous value for the PLL to DDI
mapping before OR'ing in the new value. Thus, with HDMI/DP previously being
mapped to DPLL1, when we tried to map it to DPLL0, the register continnued to
contain the mapping to DPLL1, which was disabled.

Patch is at https://patchwork.freedesktop.org/series/34726/

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