From: Alexey Dobriyan Fun in dmesg: --- dmesg-2.6.12-rc4 +++ dmesg-2.6.12-rc4-mm1 -PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 10 <=== +PNP: PS/2 controller doesn't have AUX irq; using default 0xc PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 112 <====== +serio: i8042 AUX port at 0x60,0x64 irq 12 serio: i8042 KBD port at 0x60,0x64 irq 1 <=== I never realized "irq 10" meant "KBD irq 1 and you don't have AUX irq". In 2.6.12-rc4-mm1 "irq 112" means "KBD irq 1 and AUX irq 12 (now assigned by default)". Signed-off-by: Alexey Dobriyan Cc: Adam Belay Cc: Vojtech Pavlik Signed-off-by: Andrew Morton --- drivers/input/serio/i8042-x86ia64io.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff -puN drivers/input/serio/i8042-x86ia64io.h~print-kbd-and-aux-irqs-correctly drivers/input/serio/i8042-x86ia64io.h --- 25/drivers/input/serio/i8042-x86ia64io.h~print-kbd-and-aux-irqs-correctly 2005-05-31 02:43:16.000000000 -0700 +++ 25-akpm/drivers/input/serio/i8042-x86ia64io.h 2005-05-31 02:43:16.000000000 -0700 @@ -300,10 +300,10 @@ static int i8042_pnp_init(void) i8042_kbd_irq = i8042_pnp_kbd_irq; i8042_aux_irq = i8042_pnp_aux_irq; - printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %d%s%d\n", + printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %d,%d\n", i8042_pnp_kbd_name, (result_kbd > 0 && result_aux > 0) ? "," : "", i8042_pnp_aux_name, i8042_data_reg, i8042_command_reg, i8042_kbd_irq, - (result_aux > 0) ? "," : "", i8042_aux_irq); + i8042_aux_irq); return 0; } _