Ubuntu
xserver-xorg-video-intel package

  1. Bug #1453298
  2. Comment #137

Comment 137 for bug 1453298

Revision history for this message
In , Jbmacbrodie-m (jbmacbrodie-m) wrote :

Given Luka Karinja's results, I checked my kernel args to see if something else could account for my results. I found - i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.i915_enable_fbc=1.

rc6=1 seems to be known to add instability, perhaps the freq cap offset that. I've stripped the args (except boot, splash, quiet) will be running new tests.

Kernel args I've been using the last few weeks on T100CHI.

boot=pci,force acpi=force rcutree.rcu_idle_gp_delay=1 libahci.ignore_sss=1 splash quiet acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.i915_enable_fbc=1 drm.vblankoffdelay=1 pcie_aspm=force acpi=force rcutree.rcu_idle_gp_delay=1 libahci.ignore_sss=1 splash quiet acpi_enforce_resources=lax drm.vblankoffdelay=1 pcie_aspm=force