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Old 04-26-2006, 11:43 AM   #1
Reegz
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USB Device working faster on Windows then on Linux


Hi,

I have the situation where Windows is able to write to a USB 2 flash disk much quicker than Linux (Mandrake 2.6.3 kernel). I find this odd!!

The device is being mounted automatically in KDE.

Any ideas why this is??
 
Old 04-26-2006, 12:22 PM   #2
guedellas
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maybe you are using usb-uhci module (for support of usb 1.1) instead of usb-ehci (which supports usb 2.0).

To check it, type the following and check the output:
Code:
lsmod
If usb-ehci is not present in the output, you can insert it with:
Code:
sudo modprobe usb-ehci
That's the first though that cross my mind. Hope it helps
 
Old 04-26-2006, 01:50 PM   #3
marozsas
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maybe your device is mounted with the sync option.
This is the default in SuSE 9.3 and 10.0.
In this way, you can unplug the device without umount it.

Fedora Core 5 (and WinXp) mount the device without the sync option. You must umount (eject) it to avoid data corruption.

Use the mount command to check the way Mandrake does this, and inspect the options field.

Last edited by marozsas; 04-26-2006 at 01:52 PM.
 
Old 04-26-2006, 05:04 PM   #4
Reegz
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Quote:
Originally Posted by guedellas
maybe you are using usb-uhci module (for support of usb 1.1) instead of usb-ehci (which supports usb 2.0).

To check it, type the following and check the output:
Code:
lsmod
If usb-ehci is not present in the output, you can insert it with:
Code:
sudo modprobe usb-ehci
That's the first though that cross my mind. Hope it helps
Thanks, will try it when i get back to the office.
 
Old 04-26-2006, 05:04 PM   #5
Reegz
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Registered: Mar 2006
Location: South Africa
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Quote:
Originally Posted by marozsas
maybe your device is mounted with the sync option.
This is the default in SuSE 9.3 and 10.0.
In this way, you can unplug the device without umount it.

Fedora Core 5 (and WinXp) mount the device without the sync option. You must umount (eject) it to avoid data corruption.

Use the mount command to check the way Mandrake does this, and inspect the options field.
Will check on those options as well
 
  


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