ubuntu-x-swat team mailing list archive

[djp <djpnewton@xxxxxxxxx>]

Hmm there is probably a bug with one of the driver locks (if anyone wants to
help review the code the source to the kernel module is included with the
nwfermi package)

What kernel are you using?

On Tue, Apr 6, 2010 at 1:11 PM, robireland <rob@xxxxxxxxxxxxxxxx> wrote:

> Thanks for the quick reply, Dan.
>
> I tried the different installs, and I get the same thing regardless. It
> works for anything from a couple of seconds to a couple of minutes.
> Then the mouse buttons stop working and a few seconds later machine just
> stops dead and won't accept any input from anything forcing me to do a
> hard reboot.
>
> --
> Handling NextWindow Touchscreen (multitouch)
> https://bugs.launchpad.net/bugs/379313
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “xserver-xorg-input-evdev” package in Ubuntu: Incomplete
>
> Bug description:
> Binary package hint: xserver-xorg-input-evdev
>
> Ubuntu 9.04/8.10 and probably other.
>
> The NextWindow touch screen is used on the HP TouchSmart systems however
> doesn't work out of the box on 8.10 or 9.04.
>
> Firstly it is allocated to a synaptic touchpad driver initially which is
> wrong, but can be overcome with the appropriate HAL fdi to change to evdev.
>
> Secondly (and this is a most likely a problem of either the hardware or X),
> it reports X, Y values using ABS_RX, ABS_Z rather than the expected ABS_X,
> ABS_Y. The evtouch driver will work because it accepts these as
> alternatives.
>
> Lastly, because the system is multi-touch aware it reports to the xserver
> that it has buttons. This causes it to be misclassified by evdev as a
> touchpad rather than a touchscreen.
>
> The following patch fixes the problem for me but is obviously not a general
> solution. This is against packaged version 1:2.1.1-1ubuntu4:
>
> --- src/evdev.c.orig    2010-05-22 16:08:14.000000000 +1000
> +++ src/evdev.c 2009-05-22 16:09:30.000000000 +1000
> @@ -382,10 +382,12 @@
>
>        case EV_ABS:
>            switch (ev.code) {
> +            case ABS_Z:
>            case ABS_X:
>                pEvdev->abs_x = value;
>                abs = 1;
>                break;
> +            case ABS_RX:
>            case ABS_Y:
>                pEvdev->abs_y = value;
>                abs = 1;
> @@ -1368,11 +1370,11 @@
>         xf86Msg(X_INFO, "%s: Found x and y absolute axes\n", pInfo->name);
>        pEvdev->flags |= EVDEV_ABSOLUTE_EVENTS;
>        if (TestBit(BTN_TOUCH, key_bitmask)) {
> -            if (num_buttons) {
> +/*          if (num_buttons) {
>                 xf86Msg(X_INFO, "%s: Found absolute touchpad\n",
> pInfo->name);
>                 pEvdev->flags |= EVDEV_TOUCHPAD;
>                 pEvdev->old_x = pEvdev->old_y = -1;
> -            } else {
> +            } else */ {
>                 xf86Msg(X_INFO, "%s: Found absolute touchscreen\n",
> pInfo->name);
>                 pEvdev->flags |= EVDEV_TOUCHSCREEN;
>                 pEvdev->flags |= EVDEV_BUTTON_EVENTS;
>
> ProblemType: Bug
> Architecture: amd64
> DistroRelease: Ubuntu 9.04
> NonfreeKernelModules: nvidia
> Package: xserver-xorg-input-evdev 1:2.1.1-1ubuntu4 [modified:
> usr/lib/xorg/modules/input/evdev_drv.so]
> ProcEnviron:
>  LANG=en_AU.UTF-8
>  SHELL=/bin/bash
> ProcVersion: Linux version 2.6.28-11-generic (buildd@crested) (gcc version
> 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009
> SourcePackage: xserver-xorg-input-evdev
> Uname: Linux 2.6.28-11-generic x86_64
>
> To unsubscribe from this bug, go to:
>
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/379313/+subscribe
>

-- 
Handling NextWindow Touchscreen (multitouch)
https://bugs.launchpad.net/bugs/379313
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