Public bug reported: Binary package hint: linux-image-2.6.15-27-k7
in the kernel 2.6.15-27-k7, three internal usb hubs are not recognized (not even listed in lspci) in the kernel 2.6.15-26-k7, everything works fine. here is the part of lspci -tv for kernel 2.6.15-26-k7: ----------------------------------------------------------------- \-[00]-+-06.0-[01]--+-00.0 Advanced Micro Devices [AMD] AMD-8111 USB | +-00.1 Advanced Micro Devices [AMD] AMD-8111 USB | +-03.0 NEC Corporation USB | +-03.1 NEC Corporation USB | +-03.2 NEC Corporation USB 2.0 | \-04.0 Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) -------------------------------------------------------------- the same part in lspci -tv for kernel 2.6.15-27-k7: -------------------------------------------------------------- \-[00]-+-06.0-[01]--+-00.0 Advanced Micro Devices [AMD] AMD-8111 USB | +-00.1 Advanced Micro Devices [AMD] AMD-8111 USB | \-04.0 Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) ---------------------------------------------------------------- (only the three NEC USB... are missing) In /var/log/messages, the only difference occurs during the loading of the module ohci_hcd, where the usb hubs should be listed, but aren't in 2.6.15-27. the option noapic does not change anything. Note that there are no PS/2 ports, so the keyboard and the mouse are connected to these USB ports (they work in the BIOS and in Grub, but are desactivated just after leaving the grub) Maybe it is a bug during the parsing of ACPI tables, or maybe this parsing occurs too early. ** Affects: linux-source-2.6.15 (Ubuntu) Importance: Undecided Status: Unconfirmed -- 3 usb hubs disappeared from lspci https://launchpad.net/bugs/68639 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs