Re: tslib Issue

[Neil MacMunn <neil@gumstix.com>]

After a few cycles of:

  # rm /etc/pointercal
  # shutdown -r now
  # stat /etc/pointercal

I found that pointercal is only accessed on the first restart after it 
has been modified/created.

The problem seems to be that Xorg is started before ts_calibrate runs 
for the first time. I found a fairly simple hack that seems to fix the 
problem.

  # cp /etc/X11/Xinit.d/89xTs_Calibrate /etc/rc5.d/S89xTs_Calibrate

Though this fails to address the situation where ts_calibrate is run and 
pointercal already exists - a manual reboot is still necessary for the 
new calibration to take effect. Does anyone know of a better, more 
permanent fix?


--
Neil

On 11-02-02 09:31 AM, Neil MacMunn wrote:
> I am seeing the same thing using the omap3-palmtop-image for Gumstix
> Overo. On first boot, /etc/X11/Xinit.d/89xTs_Calibrate doesn't find
> /etc/pointercal so it runs ts_calibrate. The calibration doesn't take
> effect until I reboot though - restarting gpe-dm doesn't solve the problem.
>
> I think that the library /usr/lib/ts/linear.so looks for /etc/pointercal
> and defaults to some preset values if the file doesn't exist. I thought
> that restarting gpe-dm would reload linear.so (which fuser suggests it
> does) but this doesn't solve the problem. It would appear that I am
> missing something...
>
> --
> Neil
>
>
> On 11-02-01 12:37 PM, openembedded@rkmorris.us wrote:
>> Hi,
>>
>> I have successfully build and then run several OE images on my target
>> hardware (h1940) - and have noticed an interesting oddity (bug?).
>>
>> If I run the opie-image for example, everything works just great.
>> However, if I run an X-based image (like, say x11-gpe-image) when the
>> GUI starts up tslib calibration is run ... but then basically thrown
>> away, as the driver for the touchscreen is set to evdev by default
>> (and the touchscreen isn't calibrated / does not work right). If I
>> manually build and install xf86-input-tslib, and then configure the
>> input as tslib (not evdev) - once I restart gpe-dm it works as expected!
>>
>> Is this supposed to be the case, or perhaps something not configured
>> quite right in the builds?
>>
>> Thanks!
>>
>> ... Russell
>>
>>
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