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This table contains informations about which LED number is used for which LED in the ibm-acpi driver.

To test please do the following and add the blinking LED to the table. The moon symbol is the standby led.

echo "0 blink" > /proc/acpi/ibm/led
echo "1 blink" > /proc/acpi/ibm/led
echo "2 blink" > /proc/acpi/ibm/led
echo "3 blink" > /proc/acpi/ibm/led
echo "4 blink" > /proc/acpi/ibm/led
echo "5 blink" > /proc/acpi/ibm/led
echo "6 blink" > /proc/acpi/ibm/led
echo "7 blink" > /proc/acpi/ibm/led
echo "on" > /proc/acpi/ibm/light

A Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
A22p	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
A30	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
A31				Ultrabay left	Ultrabay right	not found	Standby	unknown	unknown
G Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
G41	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
R Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
R31	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
R40	unknown	unknown	unknown	unknown	Ultrabay	unknown	unknown	Standby	unknown
R40e	unknown			unknown	unknown	unknown	unknown	Standby	unknown
R50	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
R50p				unknown	unknown	unknown	unknown	Standby
R50e				unknown	unknown	unknown	unknown	Standby
R51				unknown	Ultrabay	unknown	unknown	Standby		2883-ELU, 1830-DG4
R52				unknown	Ultrabay	unknown	unknown	Standby
R60				unknown	Ultrabay	unknown	unknown	Standby
R61				unknown	Ultrabay	unknown	unknown	Standby
R60e				unknown	unknown	unknown	unknown	Standby
T Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
T20				unknown	Ultrabay	unknown	unknown	Standby
T21				nothing	Ultrabay	nothing	nothing	Standby
T22				nothing	Ultrabay	nothing	nothing	Standby
T23				unknown	Ultrabay	unknown	unknown	Standby		2647-4MG
T30				unknown	Ultrabay	unknown	unknown	Standby
T40				unknown	Ultrabay	unknown	unknown	Standby
T40p				unknown	Ultrabay	unknown	unknown	Standby
T41				unknown	Ultrabay	unknown	unknown	Standby		2373-2gg
T41p				unknown	Ultrabay	unknown	unknown	Standby		2373-GHG
T42				unknown	Ultrabay	unknown	unknown	Standby
T42p				unknown	Ultrabay	unknown	unknown	Stanby		2373-C96
T43, T43p				unknown	Ultrabay	unknown	unknown	Standby
T60, T61				unknown	Ultrabay	unknown	unknown	Standby		2007-49G, 6465-CTO
X Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
X20	unknown			Ultrabase	unknown	unknown	unknown	Standby
X21	unknown	unknown	unknown	unknown	unknown	unknown	unknown	Standby
X23	unknown	unknown	unknown	unknown	unknown	unknown	unknown	Standby
X24	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
X30				Ultrabase	Ultrabay	Ultrabase Battery	unknown	Standby
X31				Ultrabase	Ultrabay	unknown	unknown	Standby
X32				unknown	unknown	unknown	unknown	Standby
X40				Ultrabase	Ultrabay	unknown	unknown	Standby	unknown
X41				Ultrabase	Ultrabay	unknown	unknown	Standby	unknown
X60				Ultrabase	Ultrabay	unknown	unknown	Standby
X61				unknown	unknown	unknown	unknown	Standby
X61 Tablet				unknown	unknown	unknown	unknown	Standby	unknown
X300				unknown	unknown	unknown	unknown	Standby
Z Series	LED #0	LED #1	LED #2	LED #3	LED #4	LED #5	LED #6	LED #7	ThinkLight	Notes
Z60t				unknown	Ultrabay	unknown	unknown	Standby
Z60m				unknown	unknown	unknown	unknown	Standby
Z61m				unknown	Ultrabay	unknown	unknown	Standby
Z61p				unknown	Ultrabay	unknown	unknown	Standby
Z61t				unknown	Ultrabay	unknown	unknown	Standby