Ubuntu
linux package

  1. Bug #760131
  2. Comment #193

Comment 193 for bug 760131

Revision history for this message
vervelover (alessiopangos) wrote :

Apparently, there is no fix for this bug yet, proof is here:

http://www.phoronix.com/scan.php?page=article&item=ubuntu_linux_epb&num=1

Quoting the article:

"What Canonical's kernel team says is the "fix" to LP #760131 is an unrelated power fix done upstream to ensure that the MSR_IA32_ENERGY_PERF_BIAS register is set to "normal" rather than "performance" mode. The hardware in the original posting to the aforementioned bug report does not even support EPB and is about ASPM and other power changes causing the significantly higher power usage. As these latest tests from the Sandy Bridge notebook show, the 3.0.1+ kernels can improve the power efficiency without degrading the system performance, but will only help you if running the latest Intel hardware that supports the energy performance bias feature."

I would suggest not to release Oneiric at all, you can't be taken seriously with an OS eating laptop batteries twice as fast as it should, no other non-linux OS was ever released with a bug like this.

But please, at least do not mark this as "fix released".