Hi, I also have this problem on my laptop, a TOSHIBA Satellite A300D model (PSAK8E-001003PT). I'm using the latest release of ubuntu 8.10 amd64 with the latest patches as of today.
Some of the solutions pointed here worked from time to time but not always, there where times that the defaults actually worked. Funny thing... Anyway, my webcam (integrated with the laptop) and my wireless card are usb 2.0 so having ehci-hcd removed is not a option, actually the wireless card (realtek 8187b integrated) works in usb 1.0 mode but the webcam is a no go. I managed to trace the problem back to the webcam module, uvcvideo, by trial and error blacklisting those usb device modules one at the time in several combinations. So there is a conflict with the integrated usb webcam module (uvcvideo) on my laptop and something else that interferes with the ehci module, blacklisting the uvcvideo module and everything works fine them, wireless and usb pendrives. More, if after this, II manully modprobe for uvcvideo after boot on the gnome desktop everything keeps working fine webcam included. One more thing offtopic, not intirely usb related, on this laptop I have to use acpi_osi="Linux" boot option otherwise this thing keeps rebooting on halt instead of powering off, and complains about an "irq 9: nobody cared". I attached a few ls* and dmesg for this laptop for you viewing pleasure ;). Thanks ** Attachment added: "PSAK8E.tar.gz" http://launchpadlibrarian.net/19516260/PSAK8E.tar.gz -- ehci_hcd module causes I/O errors in USB 2.0 devices https://bugs.launchpad.net/bugs/88746 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
