When I tried to downgrade to 2.6.24-19 it didn't fix the problem. Looking at the ehci_hcd.ko file after downgrading it appears as if the file did not get replaced by the ehci_hcd.ko file that is on the live CD of Ubuntu 8.04.1 (kernel 2.6.24-19). Why that is? I don't know. I would expect all of the kernel related files to be updated to the version you install, but that does not appear to be the case, at least for ehci_hcd.ko.
Right now I am testing out a different temporary fix before doing a complete reinstall test.
When I tried to downgrade to 2.6.24-19 it didn't fix the problem. Looking at the ehci_hcd.ko file after downgrading it appears as if the file did not get replaced by the ehci_hcd.ko file that is on the live CD of Ubuntu 8.04.1 (kernel 2.6.24-19). Why that is? I don't know. I would expect all of the kernel related files to be updated to the version you install, but that does not appear to be the case, at least for ehci_hcd.ko.
Right now I am testing out a different temporary fix before doing a complete reinstall test.
https:/ /bugs.launchpad .net/ubuntu/ intrepid/ +source/ linux/+ bug/88746/ comments/ 467