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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