Just tested with the upstream kernel, got exactly the same behavior. Just in case got it wrong:
$ uname -a Linux alisa 3.15.0-031500rc4-generic #201405042135 SMP Mon May 5 01:36:35 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ** Tags added: kernel-bug-exists-upstream -- 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/1316897 Title: usb2 port does not work. Status in “linux” package in Ubuntu: Incomplete Bug description: My laptop has two usb ports, one 2.0 and the other 3.0. The 3.0 works correctly (as far as i can see). The usb 2.0 port does nothing. It seems to have power (a mp3 player took charge, but a cellphone did not) but shows no activity otherwise. Whatever I plug in it nothing happens. Nothing in dmesg, nor anything changes in lsusb. I've tried wireless mouse, pendrive, hdd, couple cellphones. Everything works in the 3.0 port, does not in the 2.0 port. The laptop is a Sony VAIO T13. It's a "ultrabook", with everything intel inside. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.47 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 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: xopxe 1503 F.... pulseaudio xopxe 25455 F.... pulseaudio CurrentDesktop: Unity Date: Wed May 7 00:45:14 2014 HibernationDevice: RESUME=UUID=f93318de-f146-4e7e-bfc0-a4c0d3d727dd InstallationDate: Installed on 2013-06-16 (324 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Sony Corporation SVT13136CXS ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=ec2a5915-f3a3-4255-ae05-b0f50f2116d4 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: Upgraded to trusty on 2014-04-19 (17 days ago) dmi.bios.date: 11/14/2012 dmi.bios.vendor: Insyde Corp. dmi.bios.version: R1100D4 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:bvnInsydeCorp.:bvrR1100D4:bd11/14/2012:svnSonyCorporation:pnSVT13136CXS:pvrC904Z780:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: SVT13136CXS dmi.product.version: C904Z780 dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1316897/+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
