View Full Version : [ubuntu] Slow USB speeds

November 14th, 2009, 06:55 PM
I am transferring 75 GB of data from my computer over to my Terrabyte External HDD. When on XP(same computer) or even Macbook(has VM Ubuntu on it) I get speeds up to 30 MB/s. However using Ubuntu on either I only get transfer speeds of 2-3MB/s.
My USB ports are in fact 2.0. Is there something I may have mistakenly removed to get these speeds?


November 14th, 2009, 06:56 PM
i face the same problem :(

November 14th, 2009, 07:08 PM
i face the same problem :(

Glad to see it's not just a Karmic problem :).

November 14th, 2009, 07:22 PM
in my case it won't go beyond 1Mb, though it is a 2.0 Kingston.

November 14th, 2009, 07:28 PM
I am currently running my 9.10 x86 install off of a thumb drive (full system install), but still mount my hard drives when I need to (because Vista is installed on them). I have to transfer 105 Gigs to a USB Hard Drive and in Windows Vista the speed was 18.2/Mbps but using ubuntu, the transfer speed is currently hanging around 24.6/Mbps.

On a side note, I'm still blown away about the transfer speeds when it comes to Hard Drive to Hard Drive using Ubuntu+Ext4 vs Windows Vista+NTFS. When using NTFS even with the correct drivers, I was getting transfer speeds around 30/Mbps. When using Ubuntu+Ext4, the transfer speeds are upwards of 50/Mbps.

So, it's actually faster with Ubuntu for me (and many others). There are some people who have USB issues but there's usually quick fixes when more brains get involved. This is a an issue that has come up for other people that I have seen in these forums, so perhaps do a quick forum search to see how others fixed it.

Hope it works out well!

November 19th, 2009, 12:59 PM
You'd probably want to check this threads: