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Why is usb file transfer so slow in 12.10?

rated 0 times [ 23] [ 0] / answers: 1 / hits: 20495 / 2 Years ago, sun, february 20, 2022, 1:33:46

I was getting the usual 4-8mbps in 12.04 when copying files via usb sticks. However after upgrading to 12.10, I only get 200-300kbps when I try to perform the same operation.

I have tried different usb sticks (which work flawlessly on Windows 7) and still experience the same issue. I experienced the same issue sometime ago on 11.10 but everything was normal when I upgraded to 12.04 so it might be a kernel issue.

Here's the output of dmseg |tail:

    mysterio@mysterio-HP-Pavilion-dv6700-Notebook-PC:~$ dmesg |tail 



[  871.023093] sdb: sdb1 

[  871.026909] sd 5:0:0:0: [sdb] No Caching mode page present 

[  871.026920] sd 5:0:0:0: [sdb] Assuming drive cache: write through 

[  871.026927] sd 5:0:0:0: [sdb] Attached SCSI removable disk 

[ 1036.226206] ISO 9660 Extensions: Microsoft Joliet Level 3 

[ 1036.233561] ISO 9660 Extensions: RRIP_1991A 

[ 1086.342973] ISO 9660 Extensions: Microsoft Joliet Level 3 

[ 1086.343010] ISO 9660 Extensions: RRIP_1991A 

[ 1173.971357] ISO 9660 Extensions: Microsoft Joliet Level 3 

[ 1173.971441] ISO 9660 Extensions: RRIP_1991A

I have updated my system with the latest updates. What could be wrong?

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initiallartebeest

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3 Years ago

answered 2 Years ago mugustered · Accepted Answer

I fear that your problem has no solution. USB slow transfer rates are a phantom in Ubuntu history, that comes and goes away from time to time. It happens because developers in the majority of cases are not able to reproduce this problem and then no solution will be released.

You can see a phenomenon of discussions about USB transfer rates being slow in Ubuntu (and its "cousins"). For example you can see this thread, this discussion and this other thread.

Some say that enabling or disabling Legacy USB Support into the BIOS solves the problem, although it seems as specific rare cases.

There is a bug reported at LaunchPad that presents a workaround for the issue, but as it is somewhat outdated I can't evaluate it's effectiveness nowadays. The workaround is presented by Jean Pierre at Bug #66115 he talks about the workaround in this comment and after in this more detailed comment.

A hot discussion is about the sync mode being enabled when Nautilus mounts a device, although beyond Konqueror (KDE equivalent to Nautilus) I haven't found anyone who got sync option disabled for Nautilus.

Some workarounds of doubtfully effectiveness are discussed in this Super User's Question.

If you got no luck until here I shall tell you that there exists no solution for the problem currently.

There is currently a bug reported in LaunchPad and you can mark it as a problem that affects you. If your hardware differs from the one that is reported from the bug you may add a comment reporting your affected hardware.