GUI touchscreen not working on am335x

Hi,

Set the following environment variable

export TSLIB_TSDEVICE=/dev/input/touchscreen0

and then try again.

Regards,

Deepti

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Thanks deepti,

I tried it , now i am getting the calibration screen with a calibrator cursor and following message

root@am335x-evm:~# /etc/init.d/matrix-gui-2.0 stop
Stopping Matrix GUI application.
root@am335x-evm:~# ts_calibrate
xres = 800, yres = 480

BUt i can see my driver touch messages about coordinates,

[  625.019897] ==int ft5x0x_ts_interrupt=
[  625.023864] ==work 1=
[  625.029876] ==ft5x0x_report_value =
[  625.033569] ===x1 = 39,y1 = 37 ====
[  625.037200] ==int ft5x0x_ts_interrupt=
[  625.041137] ==touch_point default =
[  625.044799] 1:(39, 37) 2:(0, 0) 3:(0, 0) 4:(0, 0) 5:(0, 0)
[  625.050537] ==work 2=
[  625.052886] ==work 1=
[  625.055267] ==int ft5x0x_ts_interrupt=
[  625.062988] data package read error
[  625.066650] ==work 2=
[  625.069000] ==work 1=
[  625.074645] data package read error
[  625.078308] ==work 2=

But i cant calibrate my screen on touching.

Any clue on this ?

THANKS

rohit Shanbhag

Hi Rohit,

You may need to set the following environment variables

export TSLIB_PLUGINDIR=/usr/lib/ts
export TSLIB_CALIBFILE=/etc/pointercal
export TSLIB_CONFFILE=/etc/ts.conf
export TSLIB_FBDEVICE=/dev/fb0
export TSLIB_CONSOLEDEVICE=none

Regards,

Deepti

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hi deepti ,

one observation i can do , i.e when my system boots with kernel and then the matrix filesystem i can even move the cursor by toucing on the matrix gui.

I did the setting on  environment variables said , still the calibrating screen appears with cursor , but issue is same.  (touch wont work)

Is der anythng i need to configure in matrix gui side? As my driver is giving x and y coordinates properly.

Regards

ROHIT SHANBHAG

Hi Rohit,

Can you do the calibration again.

Stop the matrix gui by running the following command

/etc/init.d/matrix-gui-2.0 stop

Delete the pointercal from /etc or from sd card where ever available.

Start the matrix gui by running the following command

/etc/init.d/matrix-gui-2.0 start

It should ask for calibration.

Regards,

Deepti

hi deepthi ,

Thanks for your support !

Touchscreen is working fine for me , by doing some  functionality changes in touch driver.

Cheers

ROHIT Y SHANBHAG

I am using the Beaglebone with LVDS-LCD/touchscreen cape from Chalkboard. With Angstrom/Gnome, the touchscreen works fine. However, when I uses Arago/Matrix-GUI I have a similar problem. In both cases I am running the same kernel ( kernel patched following these instructions: http://beagleboard.org/linux ). When I boots the Beaglebone, the Linux Arago boot process stops at the touchscreen calibration and it asks for "touch the crosshair to calibrate". But it freezes at this point. Even touching the screen, nothing happens. But, unplugging the touchscreen USB cable the boot process ends.

After boot, stopping the Matrix-GUI ( /etc/init.d/matrix-gui-2.0 stop ) and executing ts_calibrate command, I don't get anything.

Setting the variables as you suggested, I get the screen calibration ("touch the crosshair to calibrate") and the prompt prints:

root@am335x-evm:~# ts_calibrate
xres = 1280, yres = 800

But, the prompt and the screen freeze here over again and I need to press CTRL+C to abort.

Could you help me?

By the way, do you know how to install the Matrix-GUI in the Angstrom? Thus I can compare the execution behavior of the touchscreen in the Arago and in the Angstrom.

My regards,

Alexandre

Hi Rohit,

I am facing the similar problem. I have working ft5x0x_ts driver which reads the coordinates (kernel debug messages). But, it is not being recognised / used by matrix gui. I also changed the corresponding environment variables.

It would be extremely helpful if you can tell me how you managed to solve yours ?

Thanks a lot.

Ram

Did you sovled the problem. I meet the same problem when I using 4wire resistive touchscreen on my custome am335x board.

root@am335x-evm:~# ts_calibrate
xres = 800, yres = 480

But, the prompt and the screen freeze here over again and I need to press CTRL+C to abort.

I don't modify the tsc driver in am335x PSP 04.06.00.09

Any advice for the issue?  How do I debug the issue. thanks!

Jacky, as my time was short when I try it, I abandoned this approach (Arago + tsc) because I needed to get results to show. At this stage, my prototype had to be functional, so I continue this work with angstrom an tsc...

Best regards,

Alexandre

I solved my issue,  There is one  hardware probelm.

thanks!

hi  Rohit Shanbhag, could you please share the changes you did to the kernel touchscreen driver?, I have a simmilar problem with st1232.c