RE: [Bug 334914] Re: [jaunty] usb file transfer is very very slow

[kulight]

This is not an issue of  using usb 1
My device and port are both usb 2
 
-Original Message-
From: boun...@canonical.com [mailto:boun...@canonical.com] On Behalf Of Simon 
Holm Th?gersen
Sent: Wednesday, June 10, 2009 2:41 AM
To: kuli...@afikim.org.il
Subject: [Bug 334914] Re: [jaunty] usb file transfer is very very slow

alex123: Cool, anything in particular that made you suspect a BIOS bug?
I guess everything is fine for your system then.

kulight: We'd still like to hear whether this is simply an issue of USB
1.1 being used.

-- 
[jaunty] usb file transfer is very very slow
https://bugs.launchpad.net/bugs/334914
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Status in “linux” source package in Ubuntu: Triaged

Bug description:
coping files to/from my usb dok/mp3 player is extremely slow
as asked here (https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/197762) im 
opening a separate bug for jaunty

see attached files

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[jaunty] usb file transfer is very very slow
https://bugs.launchpad.net/bugs/334914
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RE: [Bug 334914] Re: [jaunty] usb file transfer is very very slow

[Simon Holm Thøgersen]

ons, 10 06 2009 kl. 09:26 +, skrev kulight:
 This is not an issue of  using usb 1
 My device and port are both usb 2

But they are still used in USB 1.1 mode, see your dmesg that says new
full speed USB device and lsusb that shows the USB drive is on a bus
with a 1.1 device (this is very easy to see if you use lsusb without any
other options).

You might be able to force it into 2.0 mode by rmmod/modprobe -r all usb
related stuff and modprobing ehci_hcd. You'll have to umount all
partitions on your USB drive and disable everything else that uses USB
before you can do that.

This should bring very substantial performance improvements so please
try that.

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[jaunty] usb file transfer is very very slow
https://bugs.launchpad.net/bugs/334914
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