Public bug reported: By recommendation of Christopher M. Penalver (penalvch), I fill this bug in reference to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177235
Extracted issue from comments of #177235: """Confirmed issue with slow transfer rates (<1.5 MB/s) for 3 different external USB 2.0 hardisk (toshiba 1 TB, SAMSUNG 512 GB, Hitachi 1 TB) with 3.12.0-4-generic from trusty. It is mainly a bad detection as USB 1.0 instead of USB 2.0 in dmesg (check_highspeed is indeed bogus). I try to test with kernel mainline v3.13-rc1-trusty but I cannot because I am affected by the bug https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1254424 in fglrx. Copy 20 GB takes days, instead of hours for this issue. Thats unacceptable for backups in a company or the medium user with multimedia files. Please Ubuntu or Linux Team, contact with upstream, assign devs and raise with more priority with this bug. Perfomance is a must in GNU/Linux.""" This report was filled using "ubuntu-bug linux" command. The issue is mainly to copy or move files to a USB external storage device from the laptop or desktop. There are plenty similar reports about this issue, but I filled this for recommentation and because the devs can obtain some debug information about the devices. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-4-generic 3.12.0-4.10 ProcVersionSignature: Ubuntu 3.12.0-4.10-generic 3.12.1 Uname: Linux 3.12.0-4-generic i686 NonfreeKernelModules: fglrx ApportVersion: 2.12.7-0ubuntu1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shakaran 3667 F.... pulseaudio /dev/snd/controlC0: shakaran 3667 F.... pulseaudio /dev/snd/pcmC0D0p: shakaran 3667 F...m pulseaudio CurrentDesktop: Unity Date: Wed Nov 27 13:19:24 2013 HibernationDevice: RESUME=UUID=ca085202-e6f9-4736-b311-6d9a361ec3d6 InstallationDate: Installed on 2013-02-03 (297 days ago) InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) MachineType: Acer Aspire 5943G ProcFB: 0 simple ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-4-generic root=UUID=7f18d659-ec06-4afe-b3be-13b15de376b2 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.12.0-4-generic N/A linux-backports-modules-3.12.0-4-generic N/A linux-firmware 1.117 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2013-10-31 (27 days ago) dmi.bios.date: 10/21/2010 dmi.bios.vendor: Acer dmi.bios.version: V1.15 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Aspire 5943G dmi.board.vendor: Acer dmi.board.version: V1.15 dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.15 dmi.modalias: dmi:bvnAcer:bvrV1.15:bd10/21/2010:svnAcer:pnAspire5943G:pvrV1.15:rvnAcer:rnAspire5943G:rvrV1.15:cvnAcer:ct10:cvrV1.15: dmi.product.name: Aspire 5943G dmi.product.version: V1.15 dmi.sys.vendor: Acer ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: apport-bug i386 trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1255522 Title: Slow copy transfer rates by bad USB 2.0 detection in external usb storage devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1255522/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
