[Bug 80229] [HSW] hang loading ctx

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80229

--- Comment #54 from Peter Frühberger <fritsch at xbmc.org> ---
At least half of the options you name are "default options, see modinfo i915.
Also disabling the gpu reset is probably not a good idea since that will freeze
the complete system if such a hang occurs.

Rainer and I are testing with i915.enable_rc6=0 since several hours and for now
- we did not have another hang.

concerning your parameters:
drm.debug=0 
drm.vblankoffdelay=1 

i915.semaphores=0 <- user per chip defaults (-1) is default
i915.modeset=1 <- forces modesetting
i915.use_mmio_flip=1  <- this is not documented
i915.powersave=1  <- is the default
i915.enable_ips=1 <- is the default
i915.disable_power_well=1 <- is the default
i915.enable_hangcheck=1 <- default
i915.enable_cmd_parser=1 <- default
i915.fastboot=0 <- default
i915.enable_ppgtt=1  <- -1 (auto) is the default
i915.reset=0 <- this is probably dangerous as the gpu won't be reset
i915.lvds_use_ssc=0 <- default is auto
i915.enable_psr=0 <- this is the default

So no idea which one makes a difference. The semaphores most likely? I will
also start testing with i915.semaphores=0 now.

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