silikontodays.blogg.se - Elo touchscreen calibration problems

#ELO TOUCHSCREEN CALIBRATION PROBLEMS PASSWORD#

Enter the command roroot and press ENTER.

Press :q (colon, q as in “quit”) followed by ENTER to return to the shell prompt.

If you need to continue adjusting the calibration, return to step #13 now.

Proceed with these instructions only if the calibration is now to your satisfaction.

Hold in the Alt button and press F2 to switch back to the editor.

Make a note as to what needs to change (horizontal and/or vertical calibration), then press Settings followed by Shutdown to return to the prompt. At the point you will be able to test the calibration settings that you entered.

Type xinit and press ENTER to start the controller software.

Hold in the Alt button and press F3 to switch to the second shell prompt that we created above.

Press :w (colon, w) followed by ENTER to save your changes.

Press ESC (escape) on the keyboard to leave the editing mode.

Adjust them in increments of 50 or 100 to start with. Similarly, if it is off in the vertical direction you will want to tweak the MinY and MaxY settings. If your touchscreen’s calibration is off in the horizontal direction you will want to tweak the MinX and MaxX settings.

Finding the perfect calibration values is a trial-and-error process.

Press i (as in “india”) on the keyboard to begin editing the file.

Press the Page Down button on the keyboard until you see the line reading Identifier “TouchScreen”.

You should now see the contents of the configuration file which holds the touchscreen calibration settings.

Enter the command vi /etc/X11/nf and press ENTER.

The command will execute and you will be returned to the shell prompt.

Enter the command rwroot and press ENTER.

Hold in the Alt button and press F2 to return to the first prompt. We will use this prompt at a later stage.

Login once more to get another shell prompt. You must enter each character exactly as the directions indicate. IMPORANT: When entering commands at the shell prompt bear in mind that capitalization matters. The prompt ends with which tells you that the shell is ready for another command.

If you have correctly entered the login information, you will now be given a shell prompt.

#ELO TOUCHSCREEN CALIBRATION PROBLEMS PASSWORD#

Enter the login and password pressing ENTER after each line. The screen will then prompt you for a login. You should see a message indicating that the system has been placed into a waiting (delayed) state. Press the d (delay) button on the keyboard.If you miss the timing, you must reboot your touchscreen and begin again from step #2. TIMING: You must perform the next step quickly enough to prevent the default operation (shutdown) from activating. Press the blue button labeled Shutdown in the top-right corner of the screen.Press the green button labeled Settings near the top-left corner of the screen.You should see three rows of buttons above the student icons. Return to the default screen for LinkSystem control.You may need to remove the long plastic covering before the ports are accessible. The USB ports can be found underneath the front part of the unit. Plug in a USB keyboard to the touchscreen.IMPORTANT: It is advisable to read all of the following directions before beginning. IMPORTANT: You will be accessing sensitive areas of the touchscreen’s configuration and therefore must be very careful to follow these directions precisely or risk leaving your unit in a non-functioning state. Calibrating the touch screen will synchronize the cursor to the point at which your finger touches the screen. The LINK System’s touch screen may occasionally require a calibration. When selecting one button, a button that is beside it is selected. I am unable to select the functions on my LINK System touch screen that I want to select.