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cb951303
n00b
Joined: 07 May 2008
Posts: 5
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 Posted: Wed May 07, 2008 3:46 pm Post subject: Disabling /sys/devices/platform/i8042/serio0 |
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Hello all
My laptop's keyboard is broken. It presses random keys thus it won't let me write anything. That's why I need to disable it.
with this I found out that the keyboard is presented by | Code: | | /sys/devices/platform/i8042/serio0/input/input1 |
and the KBD port is presented by | Code: | | /sys/devices/platform/i8042/serio0 |
I want to disable one of them. any help would be appreciated...
PS: Virtualbox uses i8042 as it's keyboard serial interface. you can mess with it 
thanks very much |
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BradN
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Joined: 19 Apr 2002
Posts: 2391
Location: Wisconsin (USA)
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| Posted: Wed May 07, 2008 7:33 pm Post subject: |
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Add this to your kernel boot parameters:
i8042.nokbd
Good luck |
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cb951303
n00b
Joined: 07 May 2008
Posts: 5
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| Posted: Wed May 07, 2008 9:37 pm Post subject: |
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thanks very much
that worked, but mouse doesn't work too
I use an external usb mouse but it would be great if touchpad worked too
any ideas?
Last edited by cb951303 on Thu May 08, 2008 5:08 am; edited 1 time in total |
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cb951303
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Joined: 07 May 2008
Posts: 5
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| Posted: Wed May 07, 2008 9:43 pm Post subject: |
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I noticed that mouse works until I touch a key
after that it just stops working |
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BradN
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Joined: 19 Apr 2002
Posts: 2391
Location: Wisconsin (USA)
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| Posted: Wed May 07, 2008 10:38 pm Post subject: |
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| What shows up in dmesg before & after you hit a key? |
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cb951303
n00b
Joined: 07 May 2008
Posts: 5
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| Posted: Thu May 08, 2008 5:15 am Post subject: |
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ok. it's been a little tricky. I setup cron jobs to get dmesg since screen keyboard wasn't installed
unfortunately nothing shows up in dmesg :/ exactly the same dmesg before and after pressing the key |
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BradN
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Joined: 19 Apr 2002
Posts: 2391
Location: Wisconsin (USA)
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| Posted: Thu May 08, 2008 7:18 am Post subject: |
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Well, here's the various 8042 options for the kernel... you could try experimenting but I can't imagine why hitting a key would make the mouse not work anymore. Maybe something is really messed up with your keyboard controller?
| Code: | i8042.direct [HW] Put keyboard port into non-translated mode
i8042.dumbkbd [HW] Pretend that controller can only read data from
keyboard and cannot control its state
(Don't attempt to blink the leds)
i8042.noaux [HW] Don't check for auxiliary (== mouse) port
i8042.nokbd [HW] Don't check/create keyboard port
i8042.nomux [HW] Don't check presence of an active multiplexing
controller
i8042.nopnp [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
controllers
i8042.panicblink=
[HW] Frequency with which keyboard LEDs should blink
when kernel panics (default is 0.5 sec)
i8042.reset [HW] Reset the controller during init and cleanup
i8042.unlock [HW] Unlock (ignore) the keylock |
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cb951303
n00b
Joined: 07 May 2008
Posts: 5
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| Posted: Thu May 08, 2008 12:20 pm Post subject: |
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thanks very much.
I didn't have the chance to try any of this in my actual laptop yet. I tried all of this with virtualbox 1.6. so it may very well be a virtualbox bug 
thanks again |
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