Bug 175731

On Thursday 31 January 2013 15:03:03 Norbert Koch wrote:
> >Number:         175731
> >Category:       usb
> >Synopsis:       detaching USB keyboard freezes other USB keyboards
> >Confidential:   no
> >Severity:       non-critical
> >Priority:       low
> >Responsible:    freebsd-usb
> >State:          open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Thu Jan 31 14:10:00 UTC 2013
> >Closed-Date:
> >Last-Modified:
> >Originator:     Norbert Koch
> >Release:        9.0
> >Organization:
> 
> >Environment:
> FreeBSD  9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Thu Jan 24 16:31:49 CET
> 2013    
> root@entw-pr2.demig.intra:/usr/home/nk/src/kernel/src/sys/EMBEDDED_USBKBD_
> ONLY  i386
> 
> >Description:
> My kernel is compiled without support for atkbd. I only use USB keyboards.
> 
> Attaching is fine but when detaching, any of the keyboards - I tried up to
> three - the other keyboards freeze. If I attach the keyboard again the
> other keyboards unfreeze and work as before.
> 
> The problem has something to do with devd.
> Detaching works without problems in single user mode or with devd not
> running. As long as dev does not run *during* detaching things seem to be
> ok too.
> 
> Commenting out usb keyboard related entries in /etc/devd.conf
> or /etc/devd/usb.conf does not help.
> Commenting out syscons_setkeyboard in /etc/rc.d/syscons does not help
> either.
> 
> >How-To-Repeat:
> Attach two USB keyboards.
> Detach any of them.
> The still connected keyboards freezes.
> Reconnect other keyboard.
> Both keyboards work.

Hi,

Is this with or without X11?

Can you try 9-stable?

--HPS

It seems to be an X11 only problem.
My xorg.conf is auto-generated. Hald is running.
In xorg.conf I see Driver "kbd".
Does X11 bypass kbdmux?

Same problem with FreeBSD-9.1-RELEASE.

On Thursday 07 February 2013 13:10:01 Norbert Koch wrote:
> The following reply was made to PR usb/175731; it has been noted by GNATS.
> 
> From: Norbert Koch <nkoch@demig.de>
> To: bug-followup@FreeBSD.org
> Cc:
> Subject: Re: usb/175731: detaching USB keyboard freezes other USB keyboards
> Date: Thu, 07 Feb 2013 13:01:01 +0100
> 
>  Same problem with FreeBSD-9.1-RELEASE.

Hi,

In /etc/devd.conf there are a few lines of code:

# When a USB keyboard arrives, attach it as the console keyboard.
attach 100 {
        device-name "ukbd0";
        action "/etc/rc.d/syscons setkeyboard /dev/ukbd0";
};
detach 100 {
        device-name "ukbd0";
        action "/etc/rc.d/syscons setkeyboard /dev/kbd0";
};

Can you try to uncomment these?

Then restart devd or reboot and try again and see what happens.

I believe the devd.conf lines above should be removed.

--HPS

On Thursday 07 February 2013 22:26:17 Hans Petter Selasky wrote:
> Can you try to uncomment these?

I mean en-comment by adding # in front of every line.

--HPS

On Thursday 07 February 2013 22:40:01 Hans Petter Selasky wrote:
> The following reply was made to PR usb/175731; it has been noted by GNATS.
> 

Hi,

You should look into HAL and xf86-input-keyboard ports. I don't have time to 
debug this currently.

To prevent KBD X11 driver unload by /usr/ports/x11-drivers/xf86-input-keyboard 
change this in the source code:

 {
-    xf86AddInputDriver(&KBD, NULL, 0);
+    xf86AddInputDriver(&KBD, module, 0);
 
     return module;
 }

The problem is deeper. When X11 sees that the keyboard is gone it 
issues some IOCTLs on /dev/console, like the keyboard MODE and then no more 
keys are received. See using ktrace on Xorg. This is a shared device receiving 
key-presses for all keyboards as far as I can see and it should only be 
programmed once. This is currently not handled.

Inside the file referenced below code is present to set "x11_driver" to "kbd". 
Probably changing this will affect the outcome too:

/usr/local/share/hal/fdi/policy/10osvendor/10-x11-input.fdi

How to reproduce:

Plug two USB keyboards using a HAL enabled Xorg server. Unplug one keyboard. 
Input from the other keyboard disappears until some other keyboard device is 
plugged again!

--HPS

Am 07.02.2013 22:26, schrieb Hans Petter Selasky:
> On Thursday 07 February 2013 13:10:01 Norbert Koch wrote:
>> The following reply was made to PR usb/175731; it has been noted by GNATS.
>>
>> From: Norbert Koch <nkoch@demig.de>
>> To: bug-followup@FreeBSD.org
>> Cc:
>> Subject: Re: usb/175731: detaching USB keyboard freezes other USB keyboards
>> Date: Thu, 07 Feb 2013 13:01:01 +0100
>>
>>  Same problem with FreeBSD-9.1-RELEASE.
> Hi,
>
> In /etc/devd.conf there are a few lines of code:
>
> # When a USB keyboard arrives, attach it as the console keyboard.
> attach 100 {
>         device-name "ukbd0";
>         action "/etc/rc.d/syscons setkeyboard /dev/ukbd0";
> };
> detach 100 {
>         device-name "ukbd0";
>         action "/etc/rc.d/syscons setkeyboard /dev/kbd0";
> };
>
> Can you try to uncomment these?
>
> Then restart devd or reboot and try again and see what happens.
>
> I believe the devd.conf lines above should be removed.
>
> --HPS

I already tried this. Commenting out does not help.

Two choices work for me:
1. devd_enable=NO and hald_enable=YES
2. devd_enable=YES and option "AutoAddDevices" "NO" in xorg.conf

On Thursday 14 February 2013 10:20:02 Norbert Koch wrote:
> The following reply was made to PR usb/175731; it has been noted by GNATS.
> 
> From: Norbert Koch <nkoch@demig.de>
> To: hselasky@c2i.net
> Cc: freebsd-usb@freebsd.org, bug-followup@freebsd.org, imp@freebsd.org
> Subject: Re: usb/175731: detaching USB keyboard freezes other USB keyboards
> Date: Thu, 14 Feb 2013 10:19:05 +0100
> 
>  Am 07.02.2013 22:26, schrieb Hans Petter Selasky:
>  > On Thursday 07 February 2013 13:10:01 Norbert Koch wrote:
>  >> The following reply was made to PR usb/175731; it has been noted by
>  >> GNATS.
>  >> 
>  >> From: Norbert Koch <nkoch@demig.de>
>  >> To: bug-followup@FreeBSD.org
>  >> Cc:
>  >> Subject: Re: usb/175731: detaching USB keyboard freezes other USB
>  >> keyboards Date: Thu, 07 Feb 2013 13:01:01 +0100
>  >> 
>  >>  Same problem with FreeBSD-9.1-RELEASE.
>  > 
>  > Hi,
>  > 
>  > In /etc/devd.conf there are a few lines of code:
>  > 
>  > # When a USB keyboard arrives, attach it as the console keyboard.
>  > attach 100 {
>  > 
>  >         device-name "ukbd0";
>  >         action "/etc/rc.d/syscons setkeyboard /dev/ukbd0";
>  > 
>  > };
>  > detach 100 {
>  > 
>  >         device-name "ukbd0";
>  >         action "/etc/rc.d/syscons setkeyboard /dev/kbd0";
>  > 
>  > };
>  > 
>  > Can you try to uncomment these?
>  > 
>  > Then restart devd or reboot and try again and see what happens.
>  > 
>  > I believe the devd.conf lines above should be removed.
>  > 
>  > --HPS
> 
>  I already tried this. Commenting out does not help.
> 
>  Two choices work for me:
>  1. devd_enable=NO and hald_enable=YES
>  2. devd_enable=YES and option "AutoAddDevices" "NO" in xorg.conf
> 

Can you edit this file:

/usr/local/share/hal/fdi/policy/10osvendor/10-x11-input.fdi

And change:

<merge key="input.x11_driver" type="string">kbd</merge>

Into:

<merge key="input.x11_driver" type="string">kbd_dummy</merge>


Then restart hal.

Possibly you need a keyboard device entry in /etc/X11/xorg.conf after this 
change.

--HPS

Comment 9 Eitan Adler 2018-05-28 19:40:38 UTC

batch change:

For bugs that match the following
-  Status Is In progress 
AND
- Untouched since 2018-01-01.
AND
- Affects Base System OR Documentation

DO:

Reset to open status.


Note:
I did a quick pass but if you are getting this email it might be worthwhile to double check to see if this bug ought to be closed.

Comment 10 Graham Perrin 2021-11-05 01:16:40 UTC

No response; close?