I can confirm that this bug affects my Dell XPS 13 Haswell with an Intel 7260 rev 6b. Symptoms are identical to those described in the original post.
Using the mainline 3.15.10 kernel seems to have helped, but doesn't detect my Synaptics touchpad, so I never used it for very long. I also tried one of the 3.17rc3, but that wouldn't even boot. The only workable solution for now is using 3.13.0-35-generic with the -8 ucode moved out of the way so that it uses the -7. This makes the disconnects come hours apart instead of minutes apart. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1354975 Title: iwlwifi Intel 7260 Wifi disconnects Status in Unity Linux: New Status in “linux-firmware” package in Ubuntu: Incomplete Bug description: I experience frequent disconnects and auth issues, never more than 30 minutes without a disconnect. Sometimes dozens of disconnects in a few minutes. This happens with the default 7260-8 firmware. Tried replacing the -8 with -9 ucode. Failed to load due to API version. This loaded the -7 driver which seems to be more stable. Tested against 2.4ghz APs (Apple, Netgear, Linksys). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-32-generic 3.13.0-32.57 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 Uname: Linux 3.13.0-32-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: steve 2577 F.... pulseaudio /dev/snd/controlC1: steve 2577 F.... pulseaudio CurrentDesktop: Unity Date: Sun Aug 10 17:49:06 2014 HibernationDevice: RESUME=UUID=374a0c1c-4ac2-456b-a67e-9ea54fe11fe6 InstallationDate: Installed on 2013-12-28 (225 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Dell Inc. XPS 12-9Q33 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=58deb355-7a09-440b-ade2-69a84fd74460 ro ipv6.disable=1 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-32-generic N/A linux-backports-modules-3.13.0-32-generic N/A linux-firmware 1.127.5 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-07-06 (35 days ago) dmi.bios.date: 05/06/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A00 dmi.board.name: XPS 12-9Q33 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA00:bd05/06/2013:svnDellInc.:pnXPS12-9Q33:pvrA00:rvnDellInc.:rnXPS12-9Q33:rvrA00:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: XPS 12-9Q33 dmi.product.version: A00 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/unitylinux/+bug/1354975/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
