No wifi on Acer Aspire 4520 on Maverick

Asked by Uwe Koch

Up to 10.04 (64 bit distro), I had no trouble with my wireless connection. However, upgrading to 10.10 made the wireless connection useless. I have googled a lot to find an answer, but couldn't find one. All I can do is to escape the grub loader in order to load any 2.6.32* kernel, which still allow a sane wireless connection. Will there be a solution in the future?

Thanks in advance,

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actionparsnip (andrew-woodhead666) said :
#1

Can you give the output of:

sudo lshw -C network

Thanks

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Uwe Koch (uwe-koch) said :
#2

Sorry for the delay, I wasn't in front of the laptop. Output is:

uwe@koch-laptop:~$ sudo lshw -C network
[sudo] password for uwe:
  *-network
       description: Ethernet interface
       product: MCP67 Ethernet
       vendor: nVidia Corporation
       physical id: a
       bus info: pci@0000:00:0a.0
       logical name: eth0
       version: a2
       serial: 00:1e:68:1f:67:74
       capacity: 1GB/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.64 latency=0 link=no maxlatency=20 mingnt=1 multicast=yes port=MII
       resources: irq:27 memory:f4488000-f4488fff ioport:30f8(size=8) memory:f4489c00-f4489cff memory:f4489800-f448980f
  *-network
       description: Wireless interface
       product: AR5001 Wireless Network Adapter
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlan0
       version: 01
       serial: 00:1f:3a:66:51:5e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath5k ip=192.168.1.2 latency=0 multicast=yes wireless=IEEE 802.11bg
       resources: irq:10 memory:f4000000-f400ffff
uwe@koch-laptop:~$

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Uwe Koch (uwe-koch) said :
#3

Ouch. Forgot to show the result running 2.6.53*

I'll do it again and post the required info.

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Uwe Koch (uwe-koch) said :
#4

This is the output for 2.6.35-23:

  *-network
       description: Ethernet interface
       product: MCP67 Ethernet
       vendor: nVidia Corporation
       physical id: a
       bus info: pci@0000:00:0a.0
       logical name: eth0
       version: a2
       serial: 00:1e:68:1f:67:74
       capacity: 1GB/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.64 latency=0 link=no maxlatency=20 mingnt=1 multicast=yes port=MII
       resources: irq:42 memory:f4488000-f4488fff ioport:30f8(size=8) memory:f4489c00-f4489cff memory:f4489800-f448980f
  *-network
       description: Wireless interface
       product: AR5001 Wireless Network Adapter
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlan0
       version: 01
       serial: 00:1f:3a:66:51:5e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath5k driverversion=2.6.35-23-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bg
       resources: irq:10 memory:f4000000-f400ffff
  *-network DISABLED
       description: Ethernet interface
       physical id: 1
       logical name: vboxnet0
       serial: 0a:00:27:00:00:00
       capabilities: ethernet physical
       configuration: broadcast=yes multicast=yes

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Uwe Koch (uwe-koch) said :
#5

The nm-applet icon shows the network enabled, also the wireless connection when you right-click on the icon, but it shows no intention to connect to any wireless connection. Getting a wired connection is no problem.

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actionparsnip (andrew-woodhead666) said :
#6

I use the compilation here to get the device going:
http://ubuntuforums.org/showthread.php?t=1505100

You will need to compile it each time you get a new kernel to compile against the new headers

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