Right now the mute button on the SL410 doesn't work properly. In order for the 
sound to be muted you need to press the mute button followed by one of the 
volume buttons (see 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/994274). But changing the 
keymap as follows fixes the issue.


@@ -3157,7 +3157,7 @@ static int __init hotkey_init(struct ibm_init_struct 
*iibm)
                 */
                KEY_RESERVED,   /* 0x14: VOLUME UP */
                KEY_RESERVED,   /* 0x15: VOLUME DOWN */
-               KEY_RESERVED,   /* 0x16: MUTE */
+               KEY_MUTE,       /* 0x16: MUTE */
 
                KEY_VENDOR,     /* 0x17: Thinkpad/AccessIBM/Lenovo */



The LED still doesn't work, but hey, at least mute works. The comments above it 
says that the "firmware may react very differently" if the keymap is changed. 
So is it okay to change the keymap? Would there be any side effects?


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