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Message #119738
[Bug 1456285] Re: Intel 7260 problems on Thinkpad T440s
OK, I will do this, but it will take me a few days to get to it.
Could I ask, what are the pros and cons of using this working kernel in
the meantime, before there is a "proper" (?) fix for this problem? I
presume I should not install any of the updates I am automatically
prompted about for now, because by installing this kernel I have moved
off the sequence of machine states that is expected by whatever is
sending me those updates? But other than that, if I try to just leave
things as they are for a few weeks perhaps and use this working kernel,
is there any risk of something else going wrong?
Thanks for all the help.
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https://bugs.launchpad.net/bugs/1456285
Title:
Intel 7260 problems on Thinkpad T440s
Status in linux package in Ubuntu:
Incomplete
Bug description:
Very intermittent and inconsistent wireless connections. Occasionally
the indicator will show that the connection has been lost, but more
often it seems that the indicator just shows low signal strength -- as
it generally does even when the connection is working well.
I'm pretty sure this is not an access-point problem because we have
other devices using the same network without any problem.
Here's some of the additional information that has been requested in
other discussions of similar problems, although I don't fully
understand what all these results mean.
I have these three firmware files in /lib/firmware:
[code]
-rw-r--r-- 1 root root 683236 Nov 24 09:42 iwlwifi-7260-7.ucode
-rw-r--r-- 1 root root 679780 Dec 1 09:16 iwlwifi-7260-8.ucode
-rw-r--r-- 1 root root 680508 Dec 1 14:45 iwlwifi-7260-9.ucode
[/code]
dmesg | grep iwlwifi | grep firmware
[code]
[ 11.974201] iwlwifi 0000:03:00.0: loaded firmware version 22.24.8.0 op_mode iwlmvm
[/code]
lspci -nn | grep 0280
[code]
03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83)
[/code]
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-52-generic 3.13.0-52.86
ProcVersionSignature: Ubuntu 3.13.0-52.86-generic 3.13.11-ckt18
Uname: Linux 3.13.0-52-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: timh 2011 F.... pulseaudio
timh 2801 F.... pulseaudio
/dev/snd/controlC0: timh 2011 F.... pulseaudio
timh 2801 F.... pulseaudio
CurrentDesktop: XFCE
Date: Mon May 18 12:05:48 2015
HibernationDevice: RESUME=UUID=799c429f-edb4-438c-bbc7-386342199d23
InstallationDate: Installed on 2014-03-12 (432 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MachineType: LENOVO 20ARCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-52-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-52-generic N/A
linux-backports-modules-3.13.0-52-generic N/A
linux-firmware 1.127.11
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2015-03-16 (63 days ago)
dmi.bios.date: 02/10/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GJET71WW (2.21 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ARCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50512 STD
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGJET71WW(2.21):bd02/10/2014:svnLENOVO:pn20ARCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20ARCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20ARCTO1WW
dmi.product.version: ThinkPad T440s
dmi.sys.vendor: LENOVO
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