Usb ports suddenly stopped working

**Toltuga** · 31st December 2010, 15:53

While in normal use... usually with safari open, suddenly my usb "ports" stops working, mouse and keyboard freezes and all usb ports as well, but the system still running, little weird... i dont get kernel panic. when this happen i have to reset the pc, the usb doesnt come back.... does anyone knows what this means?
thanks in advance.

sorry for my bad english...

**candykane** · 2nd January 2011, 12:02

it could be so many things.
first try in the bios to this-able the legacy usb device

**Toltuga** · 4th January 2011, 11:18

can you please make a quick list of the things that "may cause" this? i will appreciate it. thanks.

**lycheebill** · 4th January 2011, 12:18

tried unpluging and repluging? to me it sounds like a kexts problem. oh yah, there are some known bugs on usb kexts with 10.6.5 update, my use ports became all un-useable after that update, rolling back to 10.6.2 might be a good idea.

**Toltuga** · 4th January 2011, 23:38

oook so 10.6.5 might be the issue.... i experienced the same thing on real macbook 6,1 ... with safari open all day long and then all usb port suddenly stopped , trackpad too... :S .... so buggy 10.6.5 .... well thank you for your time i really appreciate it.

**lycheebill** · 5th January 2011, 03:32

^^ all good all good~~
have fun~

**Toltuga** · 15th January 2011, 00:24

ok, i was having a look to the console and logs, at the time this happen this logs appears... any clues?

**lycheebill** · 20th January 2011, 10:50

im not pro at this but i did have no dependency problem after stright update to 10.6.6. used a clone back to 10.6.5 then update to 10.6.6 but before restart installed 10.6.2 usb rollback, then i never had this problem again...

**Toltuga** · 20th January 2011, 16:55

its a very very strange thing, right now i don't have the "dependencies" i don't get those messages anymore.... (reinstalled the system, from 10.6.2 straight to 10.6.6).

but i have noticed that some times when i turn on the pc ... just normally... let it boot .. right .. when done i open safari and pufff all usb ports stops working, i tried to change the ports of mouse and keyboard but its useless because are the PORTS!

, now sometimes i turn on the pc boots up i open safari and don't happen... and i spend the rest of the day just normally on the system... so like i said its a very very strange thing maybe something its loading good sometimes and other times not. i have not been able to determine the cause of this, nothing that calls my attention and say "this could be". :/ it only happens like once in 3 or 4 days... its a very random issue.

**candykane** · 20th January 2011, 18:12

did you try repairing the kext files and permissions?
2 are you using a dsdt file? yes? is the usb fix in there ?
did you try rolling back the usb driver from 10.6.2?

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