Laptop ACPI issues
Lyndon Drake
lyndon at arotau.com
Sat Nov 20 12:11:19 UTC 2004
Hi,
I've just installed Ubuntu on my laptop (a Toshiba Portege 3480CT, P3
600 Speedstep with 196MB RAM and a 40 GB disk). I am having problems
with ACPI and cardbus.
If I let the default setup boot, ACPI is not enabled because the BIOS is
from 2000. In this case, the computer runs extremely slowly, but it
does work. I can enable APM by modprobe'ing the apm module and starting
apmd, which lets me suspend the machine (though it doesn't detect lid
closure).
If I boot with acpi=force, ACPI loads up and the whole computer runs
much faster. However, my cardbus network cards fail to operate. I have
a 3Com 10/100 card and a Cisco Aironet 350 wireless card. It looks like
for some reason the ACPI stuff is causing cardbus cards to get allocated
IRQ 0 when they are plugged in, which doesn't work. I've appended the
trimmed dmesg output below.
Can anyone make a suggestion?
Regards,
Lyndon
PCI: Enabling device 0000:00:0b.0 (0000 -> 0002)
ACPI: PCI interrupt 0000:00:0b.0[A]: no GSI
Yenta: CardBus bridge found at 0000:00:0b.0 [1179:0001]
irq 11: nobody cared!
[<c0107c3e>] __report_bad_irq+0x31/0x73
... (many similar messages snipped)
handlers:
[<cca1e5f0>] (snd_intel8x0_interrupt+0x0/0x1f7 [snd_intel8x0])
[<cca4c20f>] (usb_hcd_irq+0x0/0x4e [usbcore])
Disabling IRQ #11
Yenta: ISA IRQ mask 0x0000, PCI irq 0
.... (time passes, then I plug in the Ethernet card)
0000:01:00.0: 3Com PCI 3CCFE575BT Cyclone CardBus at 0x4000. Vers
LK1.1.19
PCI: Setting latency timer of device 0000:01:00.0 to 64
*** Warning: IRQ 0 is unlikely to work! ***
eth0: Could not reserve IRQ 0
... (plugin the Aironet)
airo_cs: RequestIRQ: Resource in use
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