apport information ** Tags added: apport-collected trusty
** Description changed: Hello, On Intel Corporation Centrino Ultimate-N 6300 who use iwlwifi, the Wifi goes approximately (in my home) to 15MB/s in up and down on Windows 7, but it goes only to 5 - 6MB/s down, and 1 - 3MB/s up on Linux. Before Ubuntu 11.04 → It was slow. After Ubuntu 11.04 → It was slow. On Ubuntu 11.04 (Only for test): The down speed is approximately 11MB/s and the up speed is approximately: 6 - 8MB/s The driver contain a regression for speed performance. Currently I use Ubuntu 14.04 LTS with Linux 3.18.1 (Vivid package) but the speed is already slow. The range of the card is reduced, and I take sometimes 2 - 5min to discover a network. Connection/disconnection to an other network can make a bug were the fastest way to change network is to disable/enable the card (if it works), or reboot the computer. - It make this card absolutely not reliable because of the driver on - Linux. + It make this card absolutely not reliable because of the driver on Linux. + --- + ApportVersion: 2.14.1-0ubuntu3.11 + Architecture: amd64 + CurrentDesktop: Unity + DistroRelease: Ubuntu 14.04 + InstallationDate: Installed on 2014-11-24 (245 days ago) + InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) + NonfreeKernelModules: fglrx + Package: linux (not installed) + Tags: trusty + Uname: Linux 3.18.1-031801-generic x86_64 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1471794/+attachment/4435150/+files/ProcEnviron.txt ** Tags added: staging ** Description changed: Hello, On Intel Corporation Centrino Ultimate-N 6300 who use iwlwifi, the Wifi goes approximately (in my home) to 15MB/s in up and down on Windows 7, but it goes only to 5 - 6MB/s down, and 1 - 3MB/s up on Linux. Before Ubuntu 11.04 → It was slow. After Ubuntu 11.04 → It was slow. On Ubuntu 11.04 (Only for test): The down speed is approximately 11MB/s and the up speed is approximately: 6 - 8MB/s The driver contain a regression for speed performance. Currently I use Ubuntu 14.04 LTS with Linux 3.18.1 (Vivid package) but the speed is already slow. The range of the card is reduced, and I take sometimes 2 - 5min to discover a network. Connection/disconnection to an other network can make a bug were the fastest way to change network is to disable/enable the card (if it works), or reboot the computer. It make this card absolutely not reliable because of the driver on Linux. --- ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 InstallationDate: Installed on 2014-11-24 (245 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) NonfreeKernelModules: fglrx Package: linux (not installed) Tags: trusty Uname: Linux 3.18.1-031801-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True + --- + ApportVersion: 2.14.1-0ubuntu3.11 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: valentin 4266 F.... pulseaudio + /dev/snd/controlC0: valentin 4266 F.... pulseaudio + CurrentDesktop: Unity + DistroRelease: Ubuntu 14.04 + InstallationDate: Installed on 2014-11-24 (245 days ago) + InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) + MachineType: Dell Inc. Latitude E6540 + Package: linux (not installed) + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=83928b5e-863a-4f13-98b2-f288f6a095dc ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15 + RelatedPackageVersions: + linux-restricted-modules-3.13.0-46-generic N/A + linux-backports-modules-3.13.0-46-generic N/A + linux-firmware 1.127.14 + StagingDrivers: zram + Tags: trusty staging + Uname: Linux 3.13.0-46-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 05/19/2015 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: A15 + dmi.board.name: 0725FP + dmi.board.vendor: Dell Inc. + dmi.board.version: A00 + dmi.chassis.type: 9 + dmi.chassis.vendor: Dell Inc. + dmi.modalias: dmi:bvnDellInc.:bvrA15:bd05/19/2015:svnDellInc.:pnLatitudeE6540:pvr01:rvnDellInc.:rn0725FP:rvrA00:cvnDellInc.:ct9:cvr: + dmi.product.name: Latitude E6540 + dmi.product.version: 01 + dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1471794 Title: Wifi slow on Intel Corporation Centrino Ultimate-N 6300 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1471794/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
