On Monday 16 April 2007 13:59, marco wrote:
> ... It is still a problem which renders the
> pen unusable after a suspend.
> I am happy to run any tests you need.
> Attatched are a dmesg right after a reboot when the pen is working
> dmesg.wpen and another dmesg after I suspend the laptop and the pen no
> longer works.
Here's your trackpoint device:
[17179584.620000] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[17179584.640000] input: TPPS/2 IBM TrackPoint as /class/input/input2
After resume, it looks like it's associated with a different input device:
[17179770.968000] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[17179770.984000] input: TPPS/2 IBM TrackPoint as /class/input/input4
I'm sure that alone would be enough to confuse X. It seems a bit
strange that the device is associated differently after resume, but
I don't know enough about input drivers to know whether that's by
design or not.
And I can't figure out what device that really is. For some reason, I
thought it was ttyS0, but you seem to be using drivers/input/mouse/trackpoint.c,
which looks like PS/2 stuff, not serial. And the wiki you referenced
mentions /dev/wacom. I have no idea how that's wrapped up with this,
although drivers/usb/input/wacom* is all USB stuff, and I assume your
trackpoint is not a USB device (or is it?)
I should probably shut up right now before I ask more stupid questions.
But fools rush in where angels fear to tread, so:
- Does it make any difference if you stop X before suspending and
restart it afterwards?
- Can you grub around in /sys and find the trackpoint device? Maybe
start with:
$ grep . /sys/bus/pnp/devices/*/id
$ ls -l /sys/bus/pnp/devices/*/driver
$ ls -l /sys/class/input/*
- Are you using a wacom module? Maybe an "lsmod" would be useful.
- What's in your Xorg config? Does it mention /dev/wacom, /dev/ttyS0,
/dev/input/..., etc?
Bjorn
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