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[Michal Korbela <kabell999@xxxxxxxxx>]

I'm using ubuntu 14.04 with kernel 3.13 and I installed the driver. Driver works perfectly, but htop shows when wifi is unblocked by rfkill one  CPU core is 100% used, but no process uses more then 3% of CPU. Indicator multiload shows CPU is used to 3-4% but iowait is 25%(I have 2 cores and 4 threads). When I run powerstats it shows, when wifi is unblocked power reises from 10W to 14W.
Do you have the same problem ? I used ubuntu 14.10 too but the same problem. Thanks.

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https://bugs.launchpad.net/bugs/1220146

Title:
  Need support for new Ralink Wifi card - Mediatek 7630 [14c3:7630]

Status in HWE Next Project:
  Confirmed
Status in HWE Next trusty series:
  Confirmed
Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Raring:
  Incomplete
Status in “linux” source package in Saucy:
  Incomplete
Status in “linux” package in Fedora:
  New

Bug description:
  This device is appearing in some OEM machines, but driver is not yet
  available in mainline.

  The driver seems to be present in machines with pre-installed OS, but
  isn't available on the download-and-install versions!

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