Re: [Linuxwacom-discuss] Problem using two monitors

[Gerco B. <ge...@ba...>]

Hi Favux,

My setup is as follows:
* Debian GNU/Linux squeeze/sid
* Kernel 2.6.32
* Wacom driver:
   - the default  (I think 0.8.8)
   - 0.10.7  (compiled myself)
* Wacom Bamboo
* 1 Videocard: nVidia eForce 9600 GT
* 2 Monitors
* xorg.conf:
   - 2 screens (i.e. no twinview)
   - 3 x InputDevice (stylus, eraser, pad)
   - Xinerma on
   - AutoAddDevices off

I tried several setups both with the cursor locked on a single screen
and free (combinations of the MMonitor and ScreenNo option). The option
to keep the cursor in one screen or free works fine.

The problem is that the cursor is only visible in the left part of the 
left screen and/or the right part of the right screen. If the cursor is 
free to move between screens, it jumps from the middle of the left 
screen to the middle of the right screen. If the cursor is locked on the 
left screen, it moves from the left to the middle of the screen while 
moving the stylus from left to right on the tablet; if it is locked on 
the right screen, it moves from the middle to the right of the screen 
while moving the stylus. It is this using of the half of the screens 
that's the problem.

Some further Google queries showed postings that indicate that the 
second problem I mentioned apparently has to deal with the a problem in 
GTK/GDK library (not dealing properly with Xinerama).

Gerco.


On 07/25/2010 04:37 PM, Favux ... wrote:
> On Sun, Jul 25, 2010 at 7:57 AM, Gerco Ballintijn<ge...@ba...>  wrote:
>> Yaron<wacom@fr...>  wrote:
>>> I asked more-or-less the same question about my triple-screen setup. The
>>> cursor isn't eratic, it just uses one third of every screen.
>>
>> I guess my problem is the same.
>>
>> When using the tablet as ordinary mouse in my (horizontal) dual-screen
>> setup, the cursor is either in the left half of the left screen or the
>> right half of the right screen. I have played around with the mmonitor
>> and screenno options. These options only determined on which screen the
>> cursor was placed and whether it locked there.
>>
>> A second, possibly related problem was that in graphical programs (GIMP,
>> Inkscape, and MyPaint) using the tablet as separate input device, the X
>> coordinate of the cursor seems to be twice as big as it should be.
>>
>> With regards,
>> Gerco.
>>
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>
> Hi Gerco,
>
> Not quite enough information to confidently answer.  Distro, release,
> type of wacom tablet, video card, type of display (twinview etc.),
> .fdi or .conf or xorg.conf, etc.?  But try these xsetwacom commands in
> a terminal:
>
> xsetwacom set "Wacom Cintiq 21UX2 stylus" Twinview "horizontal"
> xsetwacom set "Wacom Cintiq 21UX2 stylus" Screen_No "1"
>
> Where you'd use the "Device name" for your tablet from 'xinput
> --list'.  And the screen number would be the one you want wacom
> confined to, usu. 0 or 1.  If they work you can put them in a startup
> script.
>
> Favux