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SubjectRe: Input : regression - touchpad not detected
From
On Fri, Jul 17, 2009 at 6:01 PM, Jiri Kosina<jkosina@suse.cz> wrote:
> On Fri, 17 Jul 2009, Dave Young wrote:
>
>> Hi,
>>
>> since 2.6.31-rc3, sometimes the touchpad of my laptop will not be
>> detected, usually after reboot it will be there.
>>
>> I have no such problem with 2.6.31-rc2
>>
>> `dmesg|grep input` with touchpad detected:
>>
>> [    2.447119] input: Lid Switch as
>> /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
>> [    2.458089] input: Power Button as
>> /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
>> [    2.459155] input: Sleep Button as
>> /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input2
>> [    3.093556] input: Video Bus as
>> /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:33/input/input3
>> [    3.120647] input: Video Bus as
>> /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:3b/input/input4
>> [    5.300364] input: AT Translated Set 2 keyboard as
>> /devices/platform/i8042/serio0/input/input5
>> [    5.669278] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input6
>> [    5.698278] input: AlpsPS/2 ALPS GlidePoint as
>> /devices/platform/i8042/serio1/input/input7
>>
>> `dmesg|grep input` without touchpad detected:
>>
>> [    2.454246] input: Lid Switch as
>> /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
>> [    2.478038] input: Power Button as
>> /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
>> [    2.487538] input: Sleep Button as
>> /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input2
>> [    3.118063] input: Video Bus as
>> /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:33/input/input3
>> [    3.164064] input: Video Bus as
>> /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:3b/input/input4
>> [    5.353006] input: AT Translated Set 2 keyboard as
>> /devices/platform/i8042/serio0/input/input5
>
> Providing the dmesg output with 'i8042.debug' kernel parameter in place
> from the situation the TouchPad doesn't get detected might be helpful.

I did some test with i8042.debug param but did not get it. I will keep
an eye on this issue, if I encounter the bug again I will provide the
dmesg.

When I keep rebooting with ctrl+alt+del I have another problem,
sometimes there will be many kernel warnings about unknown key pressed
like following, after which the keyboard will be unusable, I means the
pressed-key changed promiscuously.

Apr 26 14:49:06 darkstar kernel: [ 4.776903] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 4.780095] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 4.946906] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 4.950187] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.000172] Clocksource tsc
unstable (delta = -214953565 ns)
Apr 26 14:49:06 darkstar kernel: [ 5.216977] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.220251] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.298545] VFS: Mounted root
(ext3 filesystem) readonly on device 8:2.
Apr 26 14:49:06 darkstar kernel: [ 5.331958] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.335253] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.456971] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.460252] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.546911] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.550189] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.756976] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.760253] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 5.866754] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 5.870042] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 6.006971] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 6.010250] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 6.106748] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 6.110031] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 6.216754] atkbd.c: Unknown key
pressed (raw set 2, code 0xd3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 6.220032] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.
Apr 26 14:49:06 darkstar kernel: [ 6.296912] atkbd.c: Unknown key
pressed (raw set 2, code 0x1d3 on isa0060/serio0).
Apr 26 14:49:06 darkstar kernel: [ 6.300189] atkbd.c: Use
'setkeycodes e053 <keycode>' to make it known.


>
> --
> Jiri Kosina
> SUSE Labs
>
>



--
Regards
dave
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