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No USB Devices Working


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#1
philippe94

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Hi,

I need help for my USB1.1 and 2.0.
They are detected but no fonctional.
I have an Asus K8V-X SE Mobo with a Chipset Southbridge VIA8237R.
I have Zephyroth OSX Leopard 10.5.2 AMD EFI. All works fine, only USB.

I read this http://forum.insanel...p?showforum=156 but didn't help me.
USB Legacy Support is fully disabled in BIOS but I have -legacy paramter in com.apple.Boot.plist
I run USB Prober, with some USB devices connected, you can see my printer and 2 USB Keys plugged, here a screenshot:
Posted Image
but noone is mounted on the desktop or really detected - I can't detect my printer for example.

dmesg | grep -i USB is KO: no output, no result, blank
if I do kextload -v -t /System/Library/Extensions/IOUSBFamily.kext/Contents/Plugins/PCGenUSBEHCI.kext
I have "PCGenUSBEHCI.kext is already loaded; so I think it's OK.

I don't know what's happened? what can I do?

Any help would be appreciated.
If needed, I can join/add some log of USB Prober or additional screenshots.

Thanks :(

#2
VasH

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Try this:

In terminal:
sudo su -
type your password
rm -rf /System/Library/Extensions/caches
exit

If it works you can make a script that load at startup (but I don't know how)

I've had similar issue, but after 10.5.2 update USB work flawless.

good luck

#3
philippe94

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Thanks for your reply, VasH ;)

Some questions before test it:
- do I need edit com.apple.Boot.plist (remove -legacy parameter)?
- after the command, have I to reboot Leo?

Thanks for all :D

#4
VasH

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you don't have to reboot, but you have to type the command everytime you startup, if you don't write a script that load automatically at startup.

As for the -legacy parameter I'm not sure, I wasn't usign that option.

Try without removing and see if it works.
if not, you can decide if remove and retry.

#5
philippe94

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Fantastic Vash!!

It works: my USB Keys are mounted and my printer HP PSC 1350 is here and fully fonctional
Posted Image
Good jon, thanks

But now I need a script to load at each startup! :unsure:
Tested without removing -legacy parameter from com.apple.Boot.plist and USB Legacy setting to [Auto] in BIOS.

EDIT:
Another problem: it seems that after 5 or 10 minutes, I need to re-do the command to empty Extensions Cache, otherwise, same problem as before: USB Devices are not mounted!!! :( But not very disturbing at all. Perhaps there is an esay to fix this (a script?)

But, Thanks for all Vash :thumbsup_anim:

#6
alpha2zulu00

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This problem was fixed for me after installing the latest System.kext from a real Mac running 10.5.2

#7
philippe94

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From the DVD or from the real system?

#8
codyman

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Ayone who has this problem, PM me, i got VasH's script to work at startup. Thanks VasH!





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