Hi, I ran into a bug that made wifi unstable on my Lenovo Ideapad Y710. I needed to disable/reenable networking about every 5 minutes. I was able to get some connectivity, but obviously, this is a pain in the ass.
After working with the awesome support folks at Intel, I think we isolated the problem and solution.
The problem likely affects all laptops with the Intel(R) Wireless 7260 chipset.
The solution is to use updated firmware from here: http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/iwlwifi-7260-7.ucode?id=824994715e0276e64cdbf2badbe02921a78fb287
Just replace the /lib/firmware/iwlwifi-7260-7.ucode binary with the new
one.
Below is the last email I got from Luca at ilw at linux.intel.com - if you have questions, they know the technical details to the solution. Thanks again!
Mike
------
Hi Mike,
My colleague noticed that you are using an older version of the firmware
which contains a bug that may be the cause of the problem you're seeing.
We have pushed a new firmware (with a fix for this) to the
linux-firmware.git repository. You can get it here:
http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/iwlwifi-7260-7.ucode?id=824994715e0276e64cdbf2badbe02921a78fb287
Just replace the /lib/firmware/iwlwifi-7260-7.ucode binary with the new
one.
I checked Ubuntu's packages and it seems that they only updated to the
new one in the linux-firmware 1.122 package (for trusty). Ubuntu Saucy
(13.10) still has the old version in the linux-firmware 1.116 package.
It would be nice if someone would poke Ubuntu to add 1.122 to the
saucy-updates or something. I believe Linux Mint is following Ubuntu in
this case.
I hope this helps!
(And thanks to Emmanuel for the help ;)
--
Cheers,
Luca.
---
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: michael 2173 F.... pulseaudio
/dev/snd/controlC0: michael 2173 F.... pulseaudio
DistroRelease: Ubuntu 13.10
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=6ca2b9e3-fdd0-434e-b92a-06c69c90ca9b
InstallationDate: Installed on 2013-12-25 (36 days ago)
InstallationMedia: Linux Mint 16 "petra" - Release amd64 20131126
MachineType: LENOVO 20250
MarkForUpload: True
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=dccd14b6-5933-476f-b0f0-3175e5cd454a ro quiet splash
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
Tags: petra
Uname: Linux 3.11.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 09/02/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 7FCN35WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Durian 7A1
dmi.board.vendor: LENOVO
dmi.board.version: 31900003Std
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Z710
dmi.modalias: dmi:bvnLENOVO:bvr7FCN35WW:bd09/02/2013:svnLENOVO:pn20250:pvrLenovoZ710:rvnLENOVO:rnDurian7A1:rvr31900003Std:cvnLENOVO:ct10:cvrLenovoIdeaPadZ710:
dmi.product.name: 20250
dmi.product.version: Lenovo Z710
dmi.sys.vendor: LENOVO
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1274622
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.