8086:08b1 (rev 73) [Dell Inspiron 15R 5537] Wifi 7260 continuous disconnections

[Eduardo Llaguno]

I am using a new Dell Inspiron 5537 with an Intel Wifi 7260 I tried last version of iwlwifi-7260-7.ucode tried to over write the file with iwlwifi-7260-8.ucode, but only improvement was disconnections without asking for Wifi password.

Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
Subsystem: Intel Corporation Wireless-N 7260 [8086:4462]

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: eduardo 2945 F.... pulseaudio
 /dev/snd/pcmC2D0p: eduardo 2945 F...m pulseaudio
 /dev/snd/controlC1: eduardo 2945 F.... pulseaudio
 /dev/snd/controlC0: eduardo 2945 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon May 5 12:38:09 2014
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=56b84542-79d7-4891-8566-82fd89914855
InstallationDate: Installed on 2014-03-20 (46 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Dell Inc. Inspiron 5537
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=91d4dc28-7866-4cc0-a187-611e858523fb ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-24-generic N/A
 linux-backports-modules-3.13.0-24-generic N/A
 linux-firmware 1.127
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: Upgraded to trusty on 2014-04-22 (12 days ago)
dmi.bios.date: 11/12/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0845MX
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/12/2013:svnDellInc.:pnInspiron5537:pvrA07:rvnDellInc.:rn0845MX:rvrA00:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Inspiron 5537
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc4-utopic/

[Youresorock (youresorock)]

I have the same 7260 card. I tried 3.15-rc4 today, it didn't help. Fresh 14.04 32bit install. Wifi is completely unusable. Worked in 13.10 ~95% of the time.

[Youresorock (youresorock)]

I installed mainline 3.11 this morning and wifi is working just fine: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.10.9-saucy/

I would suggest this as a good workaround until the current kernel is fixed.

[penalvch (penalvch)]

Youresorock, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Kevin Brubeck Unhammer (unhammer)]

I may have the same issue on my Lenovo Thinkpad X200 with an Intel 5300 wifi card.

With 13.10, wireless was fine, with 14.04 it disconnects a lot or ssh connections will "hang" for several seconds.

I've tried

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf

(then rebooting) and

sudo iwconfig wlan0 power off

with no luck.

[Kevin Brubeck Unhammer (unhammer)]

Now I'm on

Linux gamlepadda 3.11.10-03111009-generic #201404290535 SMP Tue Apr 29 09:35:44 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

and still getting some disconnects, guess my issue is unrelated.

[Seth Forshee (sforshee)]

Eduardo: We recently incorporated some fixes into 14.04 to fix some disconnection issues seen with Intel 7260 wireless. Could you ensure that your system is fully up to date, reboot (making sure that you boot into the official trusty 3.13 kernel and not any newer kernel which you installed for testing), and let me know whether or not you're still having problems? If you are then we can continue trying to debug your issue. Thanks!

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]