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[corrado venturini <corradoventu@xxxxxxxxx>]

after moving to new kernel 4.2.0 trying to solve the problem in bug #1474898
my wifi using Ralink RT3290 is very unstable, the wifi signal looks very poor, the wifi connections stops and sometimes I can restrart with enable wifi, sometimes I can restart it only rebooting.

corrado@corrado-wily:~$ uname -a
Linux corrado-wily 4.2.0-040200rc2-generic #201507121935 SMP Sun Jul 12 23:36:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

some lines from: sudo lspci -v
  
09:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
	Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at b2510000 (32-bit, non-prefetchable) [size=64K]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+
	Capabilities: [70] Express Endpoint, MSI 00
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Device Serial Number 00-00-5d-03-82-b8-d1-ac
	Kernel driver in use: rt2800pci

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https://bugs.launchpad.net/bugs/1049466

Title:
  Need support of Ralink RT3290 wifi support

Status in Linux:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-firmware package in Ubuntu:
  Fix Released
Status in linux source package in Precise:
  Invalid
Status in linux-firmware source package in Precise:
  Fix Released
Status in linux source package in Quantal:
  Invalid
Status in linux-firmware source package in Quantal:
  Won't Fix
Status in linux source package in Raring:
  Fix Released
Status in linux-firmware source package in Raring:
  Fix Released
Status in linux package in Baltix:
  Opinion
Status in linux package in Gentoo Linux:
  New

Bug description:
  RT3290 wifi chip is becoming common on consumer notebooks. Its support
  starts from 3.6 so support on 12.10 may need lbm-cw.

  commit a89534edaaa7008992b878680490e9b02a665563
  Author: Woody Hung <Woody.Hung@xxxxxxxxxxxx>
  Date:   Wed Jun 13 15:01:16 2012 +0800

      rt2x00 : RT3290 chip support v4
      
      This patch support the new chipset rt3290 wifi implementation in rt2x00.
      It initailize the related mac, bbp and rf register in startup phase.
      And this patch modify the efuse read/write method for the different efuse data offset of rt3290.
      
      Signed-off-by: Woody Hung <Woody.Hung@xxxxxxxxxxxx>
      Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>

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