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[UNSOLVED] Syn. Touchpad missing in /proc/bus/input/devices
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flyingiguana
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PostPosted: Tue Oct 05, 2010 5:52 pm    Post subject: [UNSOLVED] Syn. Touchpad missing in /proc/bus/input/devices Reply with quote

Problem:
Mouse does not work in X11 on my E1212 Netbook

Reason for:
Device
Code:
I:Bus=0011 Vendor=0002 Product = 0007 Version= 01b1
N: Name="SynPS/2 Synaptic TouchPad"
P: Phys= isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers= mouse0 event6
B: EV=b
B: Key = 420 0 30000 0 0 0 0 0 0 0 0 0 0
B: ABS=11000003

is listed in "1 of 10" reboots in /proc/bus/input/devices

What I did so far
- Tested before installing Gentoo with Debian Lenny (synaptic is loading everytime) --> here the don't comes up.
- Tested with Gentoo installed on my hd - after removing Debian (synaptic is randomly missing after reboot [chance of 10% to work]) --> sometimes it is working and listed in /proc/bus/input/devices
- Tested with Gentoo BootCD (USB Stick) --> the same problem

On my Gentoo installation i tried:
- remove xorg.conf (now it is away)
- change INPUT_DEVICES to = "evdev synaptics" and removed "mouse"
- USE is set to: "hal X gnutls extras"

Conclusion
- I don't think it's a kernel module problem (cause it's working sometimes with my own kernel)
- It's no hardware problem (cause hardware is working fine with other OS)

Additional Log + Config Files
/proc/bus/input/devices http://nopaste.info/97f7d7fe6e.html
Xorg.0 http://nopaste.info/6a0dbe83b6.html
dmesg http://nopaste.info/a99b13ef62.html

How u can help me
Give me something to read :)
Or hints how I can solve it.

I got no clue where to start.

I think of interrupt/bus problem/kernel modulproblems/a too early start of several Applications while boot process is going on/changing linux kernel to another/ changing gentoo to unstable/ ...

The Problem could be nearly everywhere, so I don't really know - where is the best place to start (--> I also need book suggestions/man suggestion cause I don't got deep enough knowledge of hardware, yet.)


Last edited by flyingiguana on Sat Oct 23, 2010 9:28 pm; edited 1 time in total
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ribx
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PostPosted: Tue Oct 05, 2010 11:00 pm    Post subject: Reply with quote

do you have something like a button to disable the touchpad? could this be the reason?

did you check the bios? maybe you can disable it there also.

if you can, you should provide dmesg, when the touchpad was recognized.
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flyingiguana
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PostPosted: Wed Oct 06, 2010 7:07 pm    Post subject: Reply with quote

I got a disable button, that works over "FN" Key. But it's not built in yet. So it will not work.
In my Bios - there is no option for deactivation it.

I found out that the ISO USB Stick will load the Pad very often (today everytime). Maybe I was wrong here.
But my own Gentoo does not recognice the pad for over 24h now. Strange.


Is it possible that my USE="hal X gnutls extras" or INPUT_DEVICES "evdev synaptics" bring up the problems?
Cause I know that I compiled some applications with different INPUT_DEVICES in the Past. The same goes for USE.
I know that I compiled X11 without synaptic, but instead I uses USE="mouse".

But the other thing is that as far as I know - applications are loaded after proc and the kernel, so this does not really mather, or do you think so?

My next idea is to use the generic kernel and reduce it to ends up in my final working kernel ...
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PostPosted: Wed Oct 06, 2010 9:00 pm    Post subject: Reply with quote

yes. as long as you don't find it in "dmesg", the kernel doesn't recognize it. then no userland program can find it. i think the INPUT_DEVICES variable is mainly for X and even there, you dont need to set it. it only choose automatically, which drivers to install.

so check your kernel. in "menuconfig" you can search for words with "/". Just search for synaptics.
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flyingiguana
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PostPosted: Wed Oct 06, 2010 9:06 pm    Post subject: Reply with quote

in menuconfig everything with mouse + synaptic is set to y.
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PostPosted: Wed Oct 06, 2010 9:49 pm    Post subject: Reply with quote

also ps/2? often the touchpads are still connected through ps/2
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PostPosted: Thu Oct 07, 2010 7:05 am    Post subject: Reply with quote

yes :)
that's my problem, everything is on.

Yesterday evening I tried to use the options of my genkernel to get closer to the problem. But after compiling it, it was not bootable. I'm rather sure to find the problem today. Here I expect that my touchpad will work.
But it's not sure.

Another option I think about is to reinstall the whole system, perhaps it's only a wrong configuration in make.conf.

But for me it seems to be a problem with the kernel
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PostPosted: Thu Oct 07, 2010 7:57 am    Post subject: Reply with quote

DONT reinstall the system. this is NOT windows or something.

its definatly your kernel. did you try another version? maybe another flavor? like vanilla-sources?
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PostPosted: Sun Oct 10, 2010 11:30 am    Post subject: Reply with quote

no, I have not tried an other kernel yet. But I will do so, if I find no other solution :)


I've posted 2 dmesg results.

The first one is where booting was successful with my kernel, the other one, where it failed (most of the time).
Maybe you can find out why it randomly works and/or not ...

dmesg logs:


Here my Synaptics Touchpad it is succesfully loaded: (documented in line 830)
http://nopaste.info/cb81506739.html

an other time I reboot my computer it is not loaded (documented in line 840):
http://nopaste.info/b4c9d0c954.html

FYI:

- If I do boot multiple times, there will be no changes of lines in dmesg (the process seems to be the same everytime)
- Most of the time, the touchpad works, when my netbook was switched off for some minutes
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flyingiguana
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PostPosted: Sat Oct 16, 2010 7:06 am    Post subject: Reply with quote

I've also tried this out with other kernels:

2.6.35.7 and 2.6.34.1 and 2.6.34.6 the same :(
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PostPosted: Sun Oct 17, 2010 9:42 am    Post subject: Reply with quote

it's also the same with vanilla-sources.

BUT with a ISO boot CD/USB Stick, it works!

How can I use the kernel of the boot cd? what is it's .config?
Else I would use this
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flyingiguana
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PostPosted: Tue Oct 19, 2010 3:10 pm    Post subject: Reply with quote

hm, ok no one got any hints any more.

do you think it could rather be a kernel config problem?
Who or where can I find help else?
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flyingiguana
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PostPosted: Sat Oct 23, 2010 9:29 pm    Post subject: Reply with quote

move up
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PostPosted: Sun Oct 24, 2010 10:05 pm    Post subject: Reply with quote

I bring it up to work with debian and, via Ubuntu Live.

any ideas how to continue to fix the problem?
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PostPosted: Fri Oct 29, 2010 12:36 am    Post subject: Reply with quote

I have the very same problem.

The touchpad works randomly and the system has the same symptons as the OP.

I tried different kernels (gentoo-sources), however, all from 2.6.32.-r* to 2.6.35-r9 display the same random behavior.

The thing that keeps me mad is that it works some times, then, you shutdown the computer and it does not work again. Very tricky.
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PostPosted: Fri Oct 29, 2010 1:41 am    Post subject: Reply with quote

Code:
emerge gpm

reboot to CLI/terminal
test the synaptics touchpad
if it works in the terminal you should look at desktop configuration
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PostPosted: Fri Oct 29, 2010 5:34 pm    Post subject: Reply with quote

Thanks Donahue, however, the problem appears to be with the kernel. When it is detected it works fine both in the CLI as in the X enviroment.

What I actually do is to reboot the computer until the touchpad is detected. I use this command,

Code:
grep -B1 -A7 TouchPad /proc/bus/input/devices


to verify the touchpad detection after each boot, them proceed to KDE login.

Very dumb I know, but I have no clue about what is going on in the kernel, since I use the same configuration for synaptics as for old kernels (2.6.28-R3) that to not have issues with the touchpad detection.
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PostPosted: Mon Nov 08, 2010 5:49 pm    Post subject: Reply with quote

but this cannot be the solution for this problem :-) to reboot as long as it's not working.

I want to use gentoo on my harddisk every time I start.
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PostPosted: Mon Nov 08, 2010 10:04 pm    Post subject: Reply with quote

Sure, as I said, that approach is very very dumb. I have seem improvements with the 2.6.36-gentoo kernel. It detects the touchpad almost in all reboots. Give it a try.
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PostPosted: Tue Nov 09, 2010 8:01 am    Post subject: Reply with quote

I got 2.6.36-rc8. It does work in 1 of 10 tries for me, only.
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PostPosted: Tue Nov 09, 2010 1:49 pm    Post subject: Reply with quote

flyingiguana wrote:

BUT with a ISO boot CD/USB Stick, it works!

How can I use the kernel of the boot cd? what is it's .config?

Code:
/proc/config.gz
Is that what you're looking for? It will not tell you about custom patches, but Gentoo have most of them anyway.
And don't forget to get rid of squashfs and boot-cd initrd settings before you use this.
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PostPosted: Tue Nov 09, 2010 2:02 pm    Post subject: Reply with quote

But what is the ISO boot CD/USB Stick Kernel version?

2.6.28 series works fine with the same .config form 2.6.3* (that do not work).
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PostPosted: Tue Nov 09, 2010 2:19 pm    Post subject: Reply with quote

marcosdecarvalho wrote:
But what is the ISO boot CD/USB Stick Kernel version?
Should be displayed in boot menu, and noted on top of the config file, not to mention livecd directories (modules' patch should contain version, for example).

marcosdecarvalho wrote:
2.6.28 series works fine with the same .config form 2.6.3* (that do not work).
I fail to understand that sentence(?).
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PostPosted: Tue Nov 09, 2010 2:25 pm    Post subject: Reply with quote

Quote:
I fail to understand that sentence(?).


I.E. Compiling the 2.6.36 kernel with the same .config (running "make oldconfig" to update it) of the 2.6.28 Kernel (that detects the Touchpad always), does not make the kernel detect the Touchpad (just randomly, as pointed by flyingiguana, about 1 of 10 reboots).

That makes me think that the problem is with the 2.6.3* series of Kernel releases.
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