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| USB running slow http://forum.linhes.org/viewtopic.php?f=2&t=4545 |
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| Author: | tuatara [ Thu May 12, 2005 2:35 am ] |
| Post subject: | USB running slow |
Hi There, (background) I had a running FC3 based mythtv for months. Started fiddling and broke it. Am now reinstalling using KnoppMyth. (/background) After the reinstall, the external USB drive ran very slow - I'm getting about 1MB/s. I know the EPIA mobo is usb 2.0, as is the drive (new Seagate 400GB external). With FC3 I got 20-22 MB/s, which is just fine for Myth. Checking /proc/bus/usb/devices, I see the controllers are listed as Product=VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller I see in modules that KnoppMyth is using the uhci-hcd Host Controller. I see that ohci-hcd controller is also loaded. I have tried switching the disk around the 4 usb ports - watching the logs I can see that in all cases, it is reported as attaching to a 1.1 controller. Does anyone have experience with this? Can I switch to another host controller - perhaps one that understands the via controllers are actually 2.0 rather than 1.1 Many thanks for any advice or hints you can provide. Paul. |
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| Author: | tuatara [ Thu May 12, 2005 2:50 am ] |
| Post subject: | More information... |
It appears this may be an issue with 2.6.11: See: lkml. lspci reports: USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) (prog-if 00 [UHCI]) Subsystem: VIA Technologies, Inc.: Unknown device aa01 Nuts! Anyone else out there running R5A15.1 and an EPIA/VIA mobo? Regards. Palu. |
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| Author: | tuatara [ Thu May 12, 2005 3:03 am ] |
| Post subject: | Solution - ugly but workable... |
The device supports both usb2 and firewire. So I plugged it into the firewire port and voila! Now hdparm -t reports 27 MB/s. Cheers. Paul |
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| Author: | gushy [ Thu May 19, 2005 6:22 am ] |
| Post subject: | |
hmmm, I have a nforce mobo but I have the same problem .. http://mysettopbox.tv/phpBB2/viewtopic. ... highlight= |
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