PanelDue 5i V1.0 - White screen of death?

dc42

To run calibration:

Are you able to get to the Setup page and select either the Calibrate Touch or the Factory Settings option? This depends on just how far out the calibration is.
If you can't do that, here's a trick to force it to go to the calibration screen at startup. Press Erase and load Bossa, but upload the wrong firmware file (just make sure it is for a v3 PanelDue, not a v2). Then press Reset to start that firmware. The screen may be garbled, but wait for the splash screen to disappear. You should now get a (possibly garbled) touch calibration screen. At this point, press Erase again and upload the correct firmware. The touch calibration screen should appear after startup.

Explanation: on a V3 PanelDue, upgrading the firmware to a later version of the same build doesn't clear the touch calibration; but uploading a different firmware build does.

droftarts

@dc42 could you also downgrade to an older version of the correct firmware, then upgrade?

Ian

dc42

@droftarts said in PanelDue 5i V1.0 - White screen of death?:

@dc42 could you also downgrade to an older version of the correct firmware, then upgrade?

Ian

Only a very much older version of the firmware.

pkirill

@dc42
"Are you able to get to the Setup page and select either the Calibrate Touch or the Factory Settings option? This depends on just how far out the calibration is."
No luck at all getting to the Setup page. Tapping lowest rightest corner of the screen with a pencil lead only gets me to the heated bed temp area next to Standby C.

I was very hopeful - the explanation made total sense. However, flashing with v3 firmware did not get it. I did notice more of a pause at the end of the splash rollup but still no calibration. The closest I got to a real change was flashing with the PanelDue-v3-7.0.bin left me with no touch action after a button reset and reflash with PanelDue-5.0i-7.0i.bin. I tried the 4.3 and 5 as well. All gave a calibration screen (garbled in some way as you said). But after a reset/reflash either the same issue or no touch. Tried all using the BOSSA GUI and command line, different COM ports and USB cables...

dc42

@pkirill said in PanelDue 5i V1.0 - White screen of death?:

All gave a calibration screen (garbled in some way as you said). But after a reset/reflash either the same issue or no touch. Tried all using the BOSSA GUI and command line, different COM ports and USB cables...

Try that again, but when you get the garbled calibration screen, see if you can get it to calibrate. The calibration doesn't need to be any good, it just needs to be accepted so that the non-volatile data gets written. That will ensure that the calibration screen appears when you re-flash the correct firmware.

If that doesn't work then I will generate a special firmware binary for you to clear the nonvolatile data.

pkirill

@dc42 Gotcha - tried again with the different v3 firmwares and using the GUI and command line. While I could see a dot and the "Touch Here," I couldn't get anything to register. I tapped the entire surface in like an .125" grid with a stylus. As an FYI - when the dot appears, it is in middle of the screen either at the top or bottom (one of firmwares loads up flipped). Not having ever seen the calibration, I wasn't sure if that was where it was supposed to start.

dc42

Please install this firmware and calibrate. Then revert to the standard firmware.

https://www.dropbox.com/s/k8h2j4ebvik2uo2/PanelDue-5.0i-7.0i-reset.bin?dl=0

pkirill

@dc42 Okay... Here's the latest:

Using the provided firmware, flashing and pressing reset button loads calibration but touches do not register.
Cycling USB power returns to calibration, however middle-top dot does not register. However if I touch along the right edge in the upper right quadrant, the dot will move the middle-right.
Middle-right does not register a touch, however touching near but no at the bottom edge of the lower right quadrant, just right of center will move the middle-right dot to middle-bottom position.
Middle-bottom does not recognize a touch anywhere on the screen.

Flashing normal firmware after still skips calibration (as expected since this calibration did not complete). Also noting that touches also do not register until power is cycled with normal firmware as well.

dc42

It sounds to me that there is a problem with the touch membrane. Please confirm that the display is not mounted in an enclosure, as that could be pressing the edge of the touch membrane. I am assuming that your display doesn't have a separate 4-pin connector for the touch membrane.

pkirill

@dc42 It is not in an enclosure and the one I designed for it deliberately held the bezel off the glass. Not sure what you mean about the 4 pins for the membrane. You can see images of my PanelDue here: link text

A Former User

@pkirill said in PanelDue 5i V1.0 - White screen of death?:

ot sure what you mean about the 4 pins for the membrane.

seems to be soldered in place

dc42

@pkirill said in PanelDue 5i V1.0 - White screen of death?:

@dc42 It is not in an enclosure and the one I designed for it deliberately held the bezel off the glass. Not sure what you mean about the 4 pins for the membrane. You can see images of my PanelDue here: link text

Thank you. I approve a warranty replacement for your PanelDue. Please contact your supplier.

pkirill

Oh, cool! Much appreciated!