In the original bug, they were able to restore functionality by adding some HAL rules to disable use of evdev for the device. I experimented around with doing something similar for Dell by disabling evdev for /dev/input/event4 (which xinput shows as 'Sleep Button'. It made no effect; in fact I don't think evdev is grabbing that key to begin with.
I'll experiment with it more; perhaps removing acpi-support would have an effect.
In the original bug, they were able to restore functionality by adding some HAL rules to disable use of evdev for the device. I experimented around with doing something similar for Dell by disabling evdev for /dev/input/event4 (which xinput shows as 'Sleep Button'. It made no effect; in fact I don't think evdev is grabbing that key to begin with.
I'll experiment with it more; perhaps removing acpi-support would have an effect.