Bug 30942

on 2.6.38 don't work too

I confirm this bug on lenovo s10-3c.
Built-in keyboard and ACPI don't work together.

2.6.38 - interesting thing: waking up from suspend by pressing the keyboard button works, but then the keyboard still not working

2.6.38 - interesting thing: waking up from suspend by pressing the keyboard button works, but then the keyboard still not working

I would like to point out the other bug trackers that were tracking this until we were referred here.
http://bugs.gentoo.org/show_bug.cgi?id=355627
and
https://bugs.launchpad.net/gentoo/+bug/677633

Internal keyboard works sometimes when the enter key is pressed on an an external USB keyboard repeatedly while the kernel is loading. -- Though it is not practical for a netbook user to be carting around a USB keyboard everywhere they go ;-)

Created attachment 57812 [details]
DMesg file While KB is Not Working - ACPI enabled

Created attachment 57822 [details]
DMesg file While KB is Working - ACPI disabled

Created attachment 57832 [details]
Example Kernel Config

On my Lenovo S10-3C the Keyboard works right up until the kernel loads.  It
also works if I enable "noapic acpi=off" while in Grub.  
Unfortunately this also creates a basically unusable system as the graphics
drivers for the laptop require ACPI.
I am able to login with SSH or use a USB keyboard, so if you need any type of
logs then let me know what I should get for you.
I am using gentoo-sources 2.6.37 .

Reproducible: Always

Steps to Reproduce:
1.Get Lenovo S10-3C - boot Linux
2.Keyboard stops working after Grub.(all built in KB response stops, Caps lock
does not light up)

Actual Results:  
Keyboard doesn't work when apic and acpi are enabled.(all built in KB response
stops, Caps lock does not light up)

Expected Results:  
Keyboard should work with apic and acpi enabled.

Additional Notes:
Repeatedly hitting <enter> on an attached USB keyboard while the kernel is loading will sometimes activate the KB, sometimes not, and sometimes crash the boot process causing automatic reboot.  (not a good option for a digital nomad like myself who got a netbook cause it is small)

On the ubuntu bug tracker Jay said:
---
The problem is located in atkbd.c . It was fixed a long time ago. I will get with them after the new year and see if they will patch it since it affects a project they are working on. If you would like to see both the acpi and the keyboard workiing. The new unbuntu kernel update has issues with these laptops. Use the stock kernel 2.6.35-22-generic add the following to the grub boot line. You need to attach a external keyboard.

apm=power-off nomce vga=771 intel_idle.max_cstate=0

Now once you boot with a external keyboard attached keep tapping the enterkey <This is very important it creates a response from the atkdb which initializes the internal and external keyboard.

It may be a little bit flaky with the unbuntu kernel. Your system may reboot a couple of times. This has been fixed in the test kernel. It works just fine with the stock knoppix 6.2.1 kernel. If you would like to test it out without reinstalling anything.
---

Hope this helps someone get started on this!

Created attachment 60902 [details]
dmidecode output

Created attachment 60912 [details]
dmidecode output

Doesn't work in 2.6.39 either.

*** Bug 38062 has been marked as a duplicate of this bug. ***

> The problem is located in atkbd.c . It was fixed a long time ago. I will get
> with them after the new year and see if they will patch it since it affects a
> project they are working on.

Where is this patch?

I've tried to compile kernel with ATKBD and i8042 as modules, but in vain. Also, any other free OS kernels (I've tried NetBSD/OpenBSD/FreeBSD/Plan9) are not capable of working with this keyboard adn ACPI enabled. All of suggested boot parameters cannot help me.

There is some version of Meego that works with this laptop. Can anyone look how it it configured?

> Where is this patch?
I'm afraid I was quoting a person on a different forum.  I have yet to see an actual patch.

The only partial solution I have found is to buy one of those USB number pads/USB keyboards.  And if you repeatedly hit Enter key on the USB keyboard while the kernel is loading then sometimes you get the internal keyboard to work with acpi and you can disconnect the USB device without trouble.  Really though, it is a pain, and it usually takes several tries to work.

> There is some version of Meego that works with this laptop. Can anyone look
> how
it it configured?
Do you know which version?
Also do they mention the S10-3 specifically?  Cause the S10-2 worked, and the S10 worked, the problem seems to be with this model.

I've seen exactly S10-3c shipped with Meego. Unfortunately, I don't know what version of Meego it was.

> And if you repeatedly hit Enter key on the USB keyboard
> while the kernel is loading then sometimes you get the internal keyboard to
> work with acpi and you can disconnect the USB device without trouble. 

Interesting fact.

Meego Linuxcenter Edition has the same problem, but some people say that it is Meego edition S10-3c shipped with. May be it needs some configuration.

http://blog.yjl.im/2010/08/disable-laptop-ps2-at-keyboard-i8042.html the problem is here. This code did a thing:

#include <unistd.h>
#include <sys/io.h>

#define I8042_COMMAND_REG 0x64

int main(int argc, char *argv[]) {
  char data = 0xae; // enable keyboard

  ioperm(I8042_COMMAND_REG, 1, 1);

  if (argc == 2 && argv[1][0] == '0')
    data = 0xad; // disable keyboard
  outb(data, I8042_COMMAND_REG);
  return 0;
}

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/677633/comments/101 this is a source

We need some beer to thank

I can confirm that fix worked for me :D  I just set up an init script that called that program and now I have the internal keyboard working with ACPI on boot :)

*** Bug 31852 has been marked as a duplicate of this bug. ***