Carl G, thank you for reporting this and helping make Ubuntu better. Could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, please just make a comment to this.
** Tags added: bios-outdated-a19 ** Tags added: needs-bisect needs-upstream-testing regression-update ** Summary changed: - linux-image-3.11.0-15-generic appears to regress connection speed for iwlwifi + 8086:422b [Dell Latitude E6520] linux-image-3.11.0-15-generic appears to regress connection speed for iwlwifi -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1270208 Title: 8086:422b [Dell Latitude E6520] linux-image-3.11.0-15-generic appears to regress connection speed for iwlwifi Status in “linux” package in Ubuntu: Incomplete Bug description: I recently installed 13.10 and immediately updated to the latest updates via my ethernet work connection. Got home and noted that linux-image-3.11.0-15-generic was only able to transfer to my local media box via wifi at ~350kB/s (ie. Taking 10+ minutes for a 300Mb file) After trawling the net for a while, the usual solution appeared to be "restart with 11n_disable=1 as a module option." That didn't solve the issue not did several other suggestions. So I reverted to the other kernal installed on my system linux- image-3.11.0-12-generic After booting that kernel my transfer speeds are ~3MB/s - much saner (though I have had things configured so I get closer to 6MB/s) Not sure what other info I can provide. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 [modified: boot/vmlinuz-3.11.0-12-generic] ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: carlos 2193 F.... pulseaudio /dev/snd/controlC0: carlos 2193 F.... pulseaudio Date: Fri Jan 17 23:59:56 2014 HibernationDevice: RESUME=UUID=0fbe8395-5e8d-430f-823c-b5408451c73e InstallationDate: Installed on 2014-01-14 (3 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcEnviron: LANGUAGE=en_AU:en TERM=xterm PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb 1 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=22c75466-3cb5-416a-9513-8debe4246bcd ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. 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 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/11/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 0J4TFW dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd07/11/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0J4TFW:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270208/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
