Comment 88 for bug 271706

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Aryeh Gregor (simetrical+launchpad) wrote :

On 2.6.33-rc4 (presumably also 2.6.32), this mostly works:

sudo bash -c 'echo 174,176,`cat /sys/devices/platform/i8042/serio0/force_release` > /sys/devices/platform/i8042/serio0/force_release'

(I figured out 174,176 by binary search. Protip: don't force_release anything in the range 0-127, since that will prevent keycodes like Ctrl-Alt-F1 from working . . . I had to hard-reset my computer.)

The volume control no longer goes crazy when you turn the dial. But it's not a complete fix -- as noted, the dial sends three or four keypresses at once, so this results in the volume jumping instead of increasing smoothly. A quirk probably does need to be added to the kernel after all, which will cut out the duplicate keypresses. I'll look into writing that.