i915.i915_enable_rc6=7
i915.lvds_downclock=1
CPU also goes into idle 99% of the time. Temperatures and power consumption are completely ok. So for me this bug has been fixed for quite some time now.
]]>seems it has bee quiet on this specif post. But since I experience the same issues as the previous poster. I like to re-request, what the current status for this issue is. Specifically I'm interested if its considered closed. But other people that have been watching this for the last 4 kernel releases
I tried every Kernel in the 3.12.* line and my GPU is from the beginning stuck at 100%, no kernel parameter for the i915 modules seems to change that behavior, Im still running at 3.11.6 and everything is as expected. (50 degress) nicely going into Power and RC6
Could the mods please consider this as "not bumping" ...
thanks
Pete
]]>I reverted to 3.11.4 and it's back to normal.
]]>Also, what DE are you using? My tests are on Cinnamon 2.0.12
]]>CPU usage is pretty low (less than 20%, load average 0.06).
My (external) display resolution is 2560x1440, but this problem has only started happening recently, so these temperatures are definitely abnormal.
3.12.0.1-ARCH
Thinkpad X220, i5
But I can also confirm that using chromium the video card goes to 100% constant power usage. I'm not running any extension by the way.
Is it only me?
]]>/proc/cmdline: quiet pcie_aspm=force i915.i915_enable_rc6=1 acpi_backlight=vendor
I'm not sure about why your system would be suddenly using more energy, but do you really need these kernel command line arguments?
The first bold one, pcie_aspm=force, worked around an issue quite some time ago. It has the potential to cause instability, and is not needed most of the time. You might want to check to make sure that it is indeed something that you need to include.
The second bold one, i915.i915_enable_rc6=1 is actually allowing your integrated GPU to consume more power than if you didn't have this at all. Check the output of modinfo -p i915 and you'll see the various settings for that kernel module parameter. There are three levels of sleep states available to these newer integrated GPUs, rc6, rc6p, and rc6pp. You are essentially telling it that it can only go into the first sleep state and never into the deeper, more energy friendly, sleep states.
]]>With chromium open, my i915 doesn't go into power saving, powertop indicates it running at 100% and fans start spinning.
Closing it, and using Firefox doesn't exhibit this behaviour. i915 goes into power saving mode correctly. Fans slow down to an acceptable speed.
Kernel: 3.12.0 from testing
chromium: 30.0.1599.114-1
/proc/cmdline: quiet pcie_aspm=force i915.i915_enable_rc6=1 acpi_backlight=vendor