Emmanuel, I'll test the -9.ucode ASAP. Are there any bits from 3.14 or 3.15 that should be backported in order for the Ubuntu 3.13 kernel to work best with the -9.ucode?
System76 customers are experiencing a lot of problems with 7260/3160 cards, and so we're keen on getting -9.ucode in a linux-firmare SRU, assuming that's the correct fix. Interestingly, -8 seemed to work much better on our products than -7 does, which I guess could be related to a lot of factors (different antenna designs, different card revisions, different APs, etc). For us, reverting to -7 seems to create problems similar to those that people are here attributing to -8. FWIW, on this 7260 (rev 73) I'm testing: Device: 04:00.0 Class: Network controller [0280] Vendor: Intel Corporation [8086] Device: Wireless 7260 [08b1] SVendor: Intel Corporation [8086] SDevice: Dual Band Wireless-AC 7260 [4070] Rev: 73 I'm frequently getting disconnects like this, on both the G and AC routers I test with regularly: [ 4917.138750] wlan0: deauthenticated from 00:21:29:71:0a:c1 (Reason: 7) [ 4917.154768] cfg80211: Calling CRDA to update world regulatory domain [ 4917.155185] wlan0: authenticate with 00:21:29:71:0a:c1 [ 4917.156421] wlan0: send auth to 00:21:29:71:0a:c1 (try 1/3) [ 4917.158939] wlan0: authenticated [ 4917.159211] iwlwifi 0000:04:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 4917.159220] iwlwifi 0000:04:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 4917.161249] cfg80211: World regulatory domain updated: [ 4917.161256] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 4917.161261] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 4917.161265] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 4917.161269] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 4917.161272] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 4917.161275] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 4917.162508] wlan0: associate with 00:21:29:71:0a:c1 (try 1/3) [ 4917.166334] wlan0: RX AssocResp from 00:21:29:71:0a:c1 (capab=0x411 status=0 aid=4) [ 4917.167410] wlan0: associated [18596.000601] cfg80211: Calling CRDA to update world regulatory domain [18596.007368] cfg80211: World regulatory domain updated: [18596.007375] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [18596.007380] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [18596.007385] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [18596.007388] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [18596.007391] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [18596.007395] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [18599.790518] wlan0: authenticate with 00:21:29:71:0a:c1 [18599.791521] wlan0: send auth to 00:21:29:71:0a:c1 (try 1/3) [18599.844059] wlan0: send auth to 00:21:29:71:0a:c1 (try 2/3) [18599.899353] wlan0: send auth to 00:21:29:71:0a:c1 (try 3/3) [18599.954640] wlan0: authentication with 00:21:29:71:0a:c1 timed out [18611.935967] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1293569 Title: iwlwifi-7260-8.ucode causes network disconnections problems Status in “linux-firmware” package in Ubuntu: Confirmed Status in “linux-firmware” source package in Precise: Fix Released Status in “linux-firmware” source package in Trusty: Fix Released Bug description: Running 14.04 (beta) with Kernel 3.13.0-17-generic I've encountered a strange and reproducible error with the iwlwifi-7260-8.ucode firmware. This laptop is a Dell XPS 12 (haswell). With the -8 firmware, it will connect fine to wifi for 30 or 40 mins at a time, then will start dropping connections repeatedly. Even modprobe -r unloading and reloading doesn't fix the issue, only a reboot will temporarily solve it for 40 mins at a time. Moreover, here is what's strange, is during these episodes of disconnection it seems to affect the actual router (2Wire), as the other devices in the house will also start to have issues (very slow connections, limited range,etc). Once I reboot this laptop everything and all devices will return to normal. This issue has been fixed by me manually removing the -8 firware from /lib/firmware and letting the -7 firmware load instead. Since that has been done there has not been a single issue of this happening (now going on 4 days). let me know if there is any other information you would like me to provide. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-firmware 1.126 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Mon Mar 17 08:13:25 2014 Dependencies: EcryptfsInUse: Yes InstallationDate: Installed on 2014-03-07 (9 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140307) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1293569/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
