[Bug 105962] [KBL] "enable_rc6" parameter deprecation brings back freezing

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed May 16 07:52:33 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=105962

--- Comment #31 from paulz <freedesktop.org at nospam.mooo.com> ---
(In reply to Arthur from comment #30)
> I tried paulz's UDEV fix and I'm still getting crashes. I confirmed that the
> changes in max frequency were correctly applied, but it didn't fix my
> problem. The result was the same using kernel 4.15.15 (without
> i915_enable_rc6=0) or kernel 4.16.8 (which doesn't recognize the rc6
> parameter anyway).
> 
> I also tried setting the min and max frequency to an even lower number (200
> MHz), but there seems to be a hard lower limit of 300 MHz (maybe because
> that's what RP1_freq is set to and this parameter seems un-modifiable).

"cur", "min" and "max" have to be equal!

paul at behemoth:~$ sudo intel_gpu_frequency -g
cur: 300 MHz
min: 300 MHz
RP1: 300 MHz
max: 300 MHz

PS: up 1 day, 16:42 (without i915_enable_rc6=0)

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