Comment 16 for bug 818830

Hi All,

I just want to post some status information regarding this issue. I've been in contact with Intel and they are aware of this power regression issue being experienced on Sandy Bridge hardware. They are actively investigating a fix(es). They have confirmed that the root cause is the graphics RC6 disablement. The reason RC6 was disabled is because, as many of you have already confirmed, there are some critical bugs which are encountered when it is enabled. These include:

 * Hangs unless i915_enable_rc6=0
 * Hang on showing copy dashed frame on a large cell interval in LibreOffice Calc
 * Activating rc6 results in render glitches

I'll try and keep you updated with any additional information that I receive. Thanks.