I have two Toshiba Satellite Pro 6100 notebooks experiencing this issue too. Problem occurs with 2.6.32-21 and 2.6.33.3. Works fine in XP. Turning acpi=off in kernel boot parameter is work around.
I have two Toshiba Satellite Pro 6100 notebooks experiencing this issue too. Problem occurs with 2.6.32-21 and 2.6.33.3. Works fine in XP. Turning acpi=off in kernel boot parameter is work around.