kernel crash on screen blanking during Usb 2.0 data transfer

Dominik Brodowski linux at dominikbrodowski.de
Fri Apr 30 15:20:01 BST 2004


You may want to try this:

1.) pass acpi=force as kernel argument so that ACPI gets enabled even
though your notebook is a bit old,

2.) quoting drivers/acpi/pci_link.c

/*
 * "acpi_irq_balance" (default in APIC mode) enables ACPI to use PIC
Interrupt
 * Link Devices to move the PIRQs around to minimize sharing.
 *
 * "acpi_irq_nobalance" (default in PIC mode) tells ACPI not to move any PIC
IRQs
 * that the BIOS has already set to active.  This is necessary because
 * ACPI has no automatic means of knowing what ISA IRQs are used.  Note that
 * if the BIOS doesn't set a Link Device active, ACPI needs to program it
 * even if acpi_irq_nobalance is set.
 *
 * A tables of penalties avoids directing PCI interrupts to well known
 * ISA IRQs. Boot params are available to over-ride the default table:
 *
 * List interrupts that are free for PCI use.
 * acpi_irq_pci=n[,m]
 *
 * List interrupts that should not be used for PCI:
 * acpi_irq_isa=n[,m]

so, if the IRQ isn't set differently with acpi=force, you can try to
influence it a bit. In dmesg it'll also tell you whether different IRQs are
supported at all for these devices.

	Dominik



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