2 out of 4 usb sockets work

William Murray W.J.Murray at rl.ac.uk
Tue Jan 29 21:49:39 UTC 2008

On Sun, 2008-01-27 at 22:05 +0000, William Murray wrote: 
> Hello all,
>           I am trying to understand a laptop with 4 USB ports,
> apparently identical, but all 4 work under windows and only 2 under F8.
> If I look in 'hwbrowser' I see 3 controllers, (2 UHCI and 1 EHCI I
> think)  but no 'USB UHCI #n' entries like I expect.
>   cat /proc/bus/usb/devices shows up 3 controllers, and the USB mouse I
> have plugged in.  
>   It ALSO shows a device "0baa 0158", which is somehow a Realtek disk (I
> don't think there IS one) but not "0bda 8187" (or is it 8189) that I
> think the wireless card should be registered as.
>    Can anyone suggest how to debug this?
>       Thank you,
>            Bill
> Nb ACPI=off, NOAPIC were needed at boot time...
  Well...I learnt something from a Kanotix live cd, with a 2.6.24
kernel, like Chris Snook suggested.
I can boot "nosmp  noapic", instead of "acpi=off noapic", and if I do
that acpi works and the wireless appears.
So that is something. Unfortunately the process switches of half the
CPU, so it doesn't seem like a good idea. And half the usb sockets are
still dead. And the wireless card looks like an ndiswrapper case...

Also, "lsusb" or  "cat /proc/bus/usb/devices" have an interesting
behaviour, with either boot options: normally they look OK, e.g.:
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 002: ID 05e3:1205 Genesys Logic, Inc. Afilias Optical
Mouse H3003
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 003: ID 0bda:0158 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 0000:0000

but if I plug something into one of the unresponsive sockets then they
freeze and never work again. There is nothing in the log file.
So presumably the usb system is trying to work and dying?

Finally, Robert Day asked for the op of lspci:
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 671MX
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port
(virtual PCI-to-PCI bridge)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS968 [MuTIOL
Media IO] (rev 01)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0
Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0
Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] 191
Gigabit Ethernet Adapter (rev 02)
00:05.0 IDE interface: Silicon Integrated Systems [SiS] SATA
Controller / IDE mode (rev 03)
00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
771/671 PCIE VGA Display Adapter (rev 10)

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