[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1417552
Title:
iwlwifi 7260 loses connection, performance degrades
Status in linux package in Ubuntu:
Expired
Bug description:
Hi,
I have a Sony Vaio Pro 11 which has a intel 7260 wifi chip. I've had
nothing but trouble with it (and from reading forums, I'm not alone).
I file this bug to help fix issues.
My findings with recent kernels: laptop has Ubuntu Vivid installed,
which comes with the 3.18 kernel and 23.11.10 firmware. With the -10
firmware, often the wifi doesn't even associate with the access point,
while all other devices in the house can. When it does connect, the
speed is fast for about 1 second (around 10 MB/s), en then drops to
20-60 kbps, or loses connection altogether. With self-compiled
3.19-rc6 (with latest iwlwifi-fixes merged) it's the same. I tried the
23.12.10 firmware, but it is the same.
When I switch to the 25.228.9 firmware, it is much better, however,
speed still drops every now and then, but much less than with the -10
firmware. Kernel version doesn't seem to matter much, firmware version
seems to drive all variability.
This problem is for both bands 2.4 GHz and 5 GHz.
I can provide all debugging info you request. I will provide the minimum
logging tonight when I get home.
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ApportVersion: 2.15.1-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jos 2160 F.... pulseaudio
/dev/snd/controlC0: jos 2160 F.... pulseaudio
CurrentDesktop: MATE
DistroRelease: Ubuntu 15.04
HibernationDevice: RESUME=UUID=29ac20b8-1469-4865-b42a-9c1e67ce0d81
InstallationDate: Installed on 2015-01-27 (7 days ago)
InstallationMedia: Ubuntu MATE 15.04 "Vivid Vervet" - Alpha2 amd64 (20150123)
MachineType: Sony Corporation SVP1121D4E
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.18.0-12-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
RelatedPackageVersions:
linux-restricted-modules-3.18.0-12-generic N/A
linux-backports-modules-3.18.0-12-generic N/A
linux-firmware 1.141
Tags: vivid
Uname: Linux 3.18.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 11/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R1041V7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrR1041V7:bd11/05/2013:svnSonyCorporation:pnSVP1121D4E:pvrC60C907J:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVP1121D4E
dmi.product.version: C60C907J
dmi.sys.vendor: Sony Corporation
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