Yes, -9 is supported as of 3.15-rc2 (though it should also be supported in the 3.14 stable updates as well). I don't recall any updates to -9, but it was added to linux-firmware in trusty at some point, so if you did any other updates in between testing rc2 and rc3 it's possible you also changed to newer firmware. So it might not hurt to test rc2 and rc3 again, after you collect the wifi-debug data of course ;-)
-- 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/1315221 Title: 8086:08b1 (rev 6b) [Dell XPS 13 9333] iwlwifi regularly loses connection/becomes unusable on Intel 7260 Status in “linux” package in Ubuntu: Incomplete Bug description: My Intel 7260 network card regularly shows very poor performance and/or loses its connection entirely. On several occasions I have been unable to reestablish an association with the AP without rebooting. This occurs even if the laptop is within a few feet of the AP. I did not have this problem on 12.04 with a quantal backport kernel. Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b) Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c470] ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 Date: Thu May 1 22:59:32 2014 HibernationDevice: RESUME=/dev/mapper/cswap0 InstallationDate: Installed on 2014-04-25 (6 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. XPS13 9333 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/11/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 0GFTRT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA02:bd12/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: XPS13 9333 dmi.sys.vendor: Dell Inc. --- ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: elb 5375 F.... pulseaudio /dev/snd/controlC0: elb 5375 F.... pulseaudio DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=/dev/mapper/cswap0 InstallationDate: Installed on 2014-04-25 (94 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. XPS13 9333 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 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 Tags: trusty Uname: Linux 3.13.0-32-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 03/19/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0GFTRT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/19/2014:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: XPS13 9333 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1315221/+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
