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Re: ath wireless power management failure


From: Tiberiu
Subject: Re: ath wireless power management failure
Date: Tue, 7 Feb 2017 18:17:44 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.8.0

On 07.02.2017 18:03, Ricardo Wurmus wrote:
> Tiberiu <address@hidden> writes:
> 
>> Do you also have ath9k log messages and if so, could you please paste
>> them here? Also, what chip does your WiFi card have?
> 
> There aren’t many ath9k log messages.  Here are the messages from
> yesterday and today:
> 
> Feb  6 00:35:57 localhost vmunix: [   11.849588] ath9k 0000:02:00.0: enabling 
> device (0000 -> 0002)
> Feb  6 00:35:57 localhost vmunix: [   12.052196] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  6 09:23:44 localhost vmunix: [   12.052555] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  6 16:41:02 localhost vmunix: [21782.562086] [<ffffffffc0687570>] ath_isr 
> [ath9k]
> Feb  6 16:48:04 localhost vmunix: [   67.024255] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  6 18:18:40 localhost vmunix: [ 5507.166605] [<ffffffffc02eb570>] ath_isr 
> [ath9k]
> Feb  6 18:25:22 localhost vmunix: [   25.190524] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  6 22:02:25 localhost vmunix: [   53.568402] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  7 07:49:13 localhost vmunix: [ 4619.392030] ath9k 0000:02:00.0: Refused 
> to change power state, currently in D3
> Feb  7 07:53:51 localhost vmunix: [   64.161516] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  7 08:39:19 localhost vmunix: [ 2787.166577] [<ffffffffc0557570>] ath_isr 
> [ath9k]
> Feb  7 08:50:07 localhost vmunix: [   18.319719] ath9k 0000:02:00.0: enabling 
> device (0000 -> 0002)
> Feb  7 08:50:07 localhost vmunix: [   18.652179] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> Feb  7 11:55:49 localhost vmunix: [   69.031690] ath9k 0000:02:00.0 wlp2s0: 
> renamed from wlan0
> 
> lspci says this about my network controller:
> 
> 02:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter 
> (PCI-Express) (rev 01)
> 
> It used to work fine for several months.  Not sure if it’s failing or if
> there’s bad interaction with the kernel/libreboot.

To make sure it's not a hardware problem, you could boot with a Live USB
with Trisquel 7.0 (it has an older stable kernel) and see if you have
stable WiFi. If not, maybe this is a good opportunity to upgrade to the
best WiFi card compatible with fully free systems: Tehnoetic N450DB
(a/b/g/n compliant, up to 450Mbps, Dual Band, 3-antenna connectors):
https://tehnoetic.com/tet-n450db

Tiberiu
--
https://tehnoetic.com



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