Public bug reported:
Binary package hint: nautilus
Fresh install of karmic beta 10 Oct 2009
USB transfers great (12-15 Mb/s) to a USB 2 stick, reads were 12-17 Mb/s
After a couple updates I noticed the transfer rates dropping (3-6 Mb/s;
subsequently now the transfer rates are slowing down to 1.2 Mb/s
I have noticed slow transfers with Ubuntu for a little while. tried the
karmic beta live CD, the best transfer rates I have seen in a while.
I even purchased a small powers USB 2 hub (possible voltage loss due to
cable length affects transfer rates for testing with Jaunty (previously
installed on 3rd HD. Legacy USB 1.1 still enabled, even with the LCD of
Karmic running for 6 hours transfer rates were 12-15 Mb/s.
Karmic slow (data from this morning 21 Oct 09)
Screen shots of file transfer, lsusb, lspci, df -i, lsmod
Computer Supermicro P4D6C+
1. Dual Intel® Xeon® processors 1.5 GHz
2. Intel® 860 Chipset
3. 512MB 600/800MHz RDRAM
4. 1x Intel® 82559 10/100 Ethernet Controller
5. Adaptec AIC-7899W Dual-Channel Ultra160 SCSI
6. 2 x 64-bit PCI expansion slots
7. 4xAGP Pro slot, nVidia GeForce FX 5500 AGP video card
8. Award® BIOS
ProblemType: Bug
Architecture: i386
Date: Wed Oct 21 17:44:12 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/nautilus
NonfreeKernelModules: nvidia
Package: nautilus 1:2.28.0-0ubuntu7
ProcEnviron:
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: nautilus
Uname: Linux 2.6.31-14-generic i686
** Affects: nautilus (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
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Karmic slow USB transfers to USB 2 stick
https://bugs.launchpad.net/bugs/457768
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