Bug 65791 - LG laptops: keyboard does not work
Summary: LG laptops: keyboard does not work
Status: RESOLVED DUPLICATE of bug 58991
Alias: None
Product: Drivers
Classification: Unclassified
Component: Input Devices (show other bugs)
Hardware: i386 Linux
: P1 normal
Assignee: drivers_input-devices
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-11-25 18:02 UTC by Joonas Saarinen
Modified: 2013-11-26 21:25 UTC (History)
2 users (show)

See Also:
Kernel Version: 3.9.0
Subsystem:
Regression: No
Bisected commit-id:

Attachments
acpidump (186.19 KB, application/octet-stream)
2013-11-25 18:03 UTC, Joonas Saarinen 		Details
dmesg (57.19 KB, application/octet-stream)
2013-11-25 18:03 UTC, Joonas Saarinen 		Details
lshw (17.46 KB, application/octet-stream)
2013-11-25 18:04 UTC, Joonas Saarinen 		Details
lsmod (2.50 KB, application/octet-stream)
2013-11-25 18:04 UTC, Joonas Saarinen 		Details
lspci -vv (27.06 KB, application/octet-stream)
2013-11-25 18:05 UTC, Joonas Saarinen 		Details
Add an attachment (proposed patch, testcase, etc.)

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 ***
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