Re: ASUS A6Q00KM fails to boot without power cable plugged in.
On Thu, 2006-03-30 at 20:00 +0200, Anders Ellenshøj Andersen wrote:
> I have reported this as a kernel bug, but I thought maybe this list would have
> some input for me on this issue.
>
> I have an ASUS A6Q00KM laptop with a Turion64 AMD processor. It has a SiS
> chipset. If I turn on the laptop when the power cable isn't plugged in, the
> system hangs during boot. It hangs the first time you try to boot it after
> the power cable has been plugged in, after that it boots normally. When it
> hangs you can hold the power button for a couple of seconds to turn it off
> (normal ATX behaviour..). There is no other method to reboot it.
>
> When it hangs, the final screen displayed look like this (I wrote off the
> screen manually on a different computer):
>
> ohci_hcd 0000:00:03.0: irq 18, io mem 0xfebff000
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 3 ports detected
> GSI 19 sharing vector 0xC1 and IRQ 19
> ACPI: PCI Interrupt 0000:00:03.1[B] -> GSI 21 (level, low) -> IRQ 19
> ohci_hcd 0000:00:03.1: OHCI Host Controller
> ohci_hcd 0000:00:03.1: new USB bus registered, assigned bus number 2
> ohci_hcd 0000:00:03.1: irq 19, io mem 0xfebfe000
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 3 ports detected
> GSI 20 sharing vector 0xC9 and IRQ 20
> ACPI: PCI Interrupt 0000:00:03.2[C] -> GSI 22 (level, low) -> IRQ 20
> ohci_hcd 0000:00:03.2: OHCI Host Controller
> ohci_hcd 0000:00:03.2: new USB bus registered, assigned bus number 3
> ohci_hcd 0000:00:03.2: irq 20, io mem 0xfebfd000
> hub 3-0:1.0: USB hub found
> hub 3-0:1.0: 2 ports detected
> r8169 Gigabit Ethernet driver 2.2LK loaded
> GSI 21 sharing vector 0xD1 and IRQ 21
> ACPI: PCI Interrupt 0000:00:0b.0[A] -> GSI 19 (level, low) -> IRQ 21
> eth0: RTL8169 at 0xffffc2000000cc00, 00:15:f2:22:8f:0f, IRQ 21
> GSI 22 sharing vector 0cD9 and IRQ 22
> ACPI: PCI Interrupt 0000:00:03.3[D] -> GSI 23 (level, low) -> IRQ 22
> ehci_hcd 0000:00:03.3: EHCI Host Controller
>
> System locks up here.
>
>
>
> --
> - Debian GNU/Linux - KDE 3.5.1 - KMail 1.9.1 -
>
>
I have an ASUS A6k and I think it's related to the bad ACPI that many
laptops come with. They are compiled by Microsoft compilers and thus
contain many, many bugs.
In this case, your kernel loads in USB2 (ehci) and hangs. If you compile
without USB2 or fix your ACPI, you can boot without the power cable
attached. I'm not really sure how to do that, though, so maybe someone
else can help you there.
Here's a couple of websites that might help and helped me discover what
was wrong:
http://acpi.sourceforge.net/
http://www.linux-on-laptops.com/asus.html
I'm sorry I can't be of any more help; I'm fairly new to this whole
thing.
Tom
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