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#1 2012-11-16 20:57:41

aviad
Member
Registered: 2006-01-19
Posts: 20

Wireless device disappeared (yes, you read it right)

Hey,

I recently installed arch on my laptop, and today at some point my wireless network dropped. After failing to bring it back again, I just rebooted the computer. When it came back up, this time there was no wlan0 device, and it also didn't show up in lspci. I booted my Windows partition, and still no wireless, and the device doesn't even appear at the device manager.

After checking error.log , at the first time my wireless was failing I got a lot of errors like this:

Nov 16 17:48:40 localhost kernel: [45471.954015] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register access failed: offset=0x00000500, value=0xffffffff

and after about a 1000 lines like this, finally:

Nov 16 17:50:30 localhost kernel: [45582.550355] phy0 -> rt2800_wait_csr_ready: Error - Unstable hardware.

I don't know if it's enough information to solve it, but someone can maybe at least point to what else should I check? google doesn't show up anything that looks relevant and I really have very little ideas where to go from here.

Last edited by aviad (2012-11-16 20:58:04)


Someday, I'll be a real boy!

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#2 2012-11-16 21:07:19

65kid
Member
From: Germany
Registered: 2011-01-26
Posts: 663

Re: Wireless device disappeared (yes, you read it right)

if it doesn't show up in lspci and windows doesn't recognize it either this is probably a hardware problem - nothing you can do about it.

similiar thing happened to the onboard NIC on my mainboard. After a power outage it simply wasn't recognized anymore while the rest of the system still works fine.

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#3 2012-11-16 21:40:40

stevepa
Member
From: Texas USA
Registered: 2012-02-12
Posts: 113

Re: Wireless device disappeared (yes, you read it right)

65kid wrote:

if it doesn't show up in lspci and windows doesn't recognize it either this is probably a hardware problem - nothing you can do about it.

similiar thing happened to the onboard NIC on my mainboard. After a power outage it simply wasn't recognized anymore while the rest of the system still works fine.

Possibly if the OP reseats the wireless card in the laptop that may resolve it.  (If it is a card that is). I seem to recall I've seen the cards accessible through a small removable cover on the underside of the laptop. I recall these cards are inexpensive also. You can always just use a USB wifi adaptor.

HTH
Steve.


Arch - LVM - ext4 - gnome (T60p 14.1 1400p  x86_64), (T60 15 flexview 1400p i686)

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