Bug 65791

Summary: LG laptops: keyboard does not work
Product: Drivers Reporter: Joonas Saarinen (jza)
Component: Input DevicesAssignee: drivers_input-devices
Status: RESOLVED DUPLICATE    
Severity: normal CC: alan, mjg59-kernel
Priority: P1    
Hardware: i386   
OS: Linux   
Kernel Version: 3.9.0 Subsystem:
Regression: No Bisected commit-id:
Attachments: acpidump
dmesg
lshw
lsmod
lspci -vv

Description Joonas Saarinen 2013-11-25 18:02:52 UTC 
The kernel 3.9.0 has introduced a bug where the internal keyboard of some LG laptops circa 2006 does not work anymore. The PS/2 keyboard interrupt counter does not increment when keys are pressed. The PS/2 touchpad works normally. External keyboards are fine.

This issue affects my LG LW25 Express Dual and there are reports about LG P1 Express Dual and LG S1 Pro Express Dual being affected:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1243904
http://www.ubuntu-es.org/node/181699

The bug still exists all the way up to 3.13-rc1.
Comment 1 Joonas Saarinen 2013-11-25 18:03:34 UTC 
Created attachment 116011 [details]
acpidump
Comment 2 Joonas Saarinen 2013-11-25 18:03:52 UTC 
Created attachment 116021 [details]
dmesg
Comment 3 Joonas Saarinen 2013-11-25 18:04:11 UTC 
Created attachment 116031 [details]
lshw
Comment 4 Joonas Saarinen 2013-11-25 18:04:33 UTC 
Created attachment 116041 [details]
lsmod
Comment 5 Joonas Saarinen 2013-11-25 18:05:09 UTC 
Created attachment 116051 [details]
lspci -vv
Comment 6 Matthew Garrett 2013-11-25 18:20:13 UTC 
Reassigning to the input core.
Comment 7 Joonas Saarinen 2013-11-26 01:20:30 UTC 
Passing "i8042.dumbkbd=1" as a kernel boot parameter seems to be a workaround which makes the keyboard alive. (Of course the keyboard leds don't work in this mode.)
Comment 8 Alan 2013-11-26 21:25:17 UTC 
Dup of 58991

*** This bug has been marked as a duplicate of bug 58991 ***