Manufacturing Test Mode (Basic)

Xyz · 11-01-2022, 02:52 PM

Hi,

As part of an OS update project there are approx 100 devices with DisplayLink screens being upgraded from Ubuntu 18.04 to Ubuntu 22.04.

There are 2 models of DisplayLink screen involved, the first model has upgraded correctly and works without any problem. This one shows up in `lsusb` as below

Code:

  idVendor           0x17e9 DisplayLink
  idProduct          0xff00
  bcdDevice           47.60
  iProduct                2  OLC-TOUCH10.1
  iSerial                 3 1179322TWJANL461743

The second model of screen has stopped working after the update and refuses to work even when the OS is rolled back to Ubuntu 18.04.

This is the screen before the update:

Code:

  idVendor           0x17e9 DisplayLink
  idProduct          0xff00
  bcdDevice           74.37
  iProduct                2 OLC-TOUCH10.1
  iSerial                 3 DSIP293TWJANM200232

After the update the screen stays blank, the serial number has changed and it is showing up as being in a manufacturing test mode:

Code:

  idVendor           0x17e9 DisplayLink
  idProduct          0xff00
  bcdDevice           74.37
  iProduct                2 Manufacturing Test Mode (Basic)
  iSerial                 3 DSIP293DL4121-02.A5D.934

All this type of screen we have tried so far (5) have failed in the same way.
Please can you advise how we can recover these broken screens and how we can upgrade without having this issue?

11-01-2022, 02:52 PM	#1
Xyz Junior Member Join Date: Jul 2022 Posts: 3	Manufacturing Test Mode (Basic) Hi, As part of an OS update project there are approx 100 devices with DisplayLink screens being upgraded from Ubuntu 18.04 to Ubuntu 22.04. There are 2 models of DisplayLink screen involved, the first model has upgraded correctly and works without any problem. This one shows up in `lsusb` as below Code: idVendor 0x17e9 DisplayLink idProduct 0xff00 bcdDevice 47.60 iProduct 2 OLC-TOUCH10.1 iSerial 3 1179322TWJANL461743 The second model of screen has stopped working after the update and refuses to work even when the OS is rolled back to Ubuntu 18.04. This is the screen before the update: Code: idVendor 0x17e9 DisplayLink idProduct 0xff00 bcdDevice 74.37 iProduct 2 OLC-TOUCH10.1 iSerial 3 DSIP293TWJANM200232 After the update the screen stays blank, the serial number has changed and it is showing up as being in a manufacturing test mode: Code: idVendor 0x17e9 DisplayLink idProduct 0xff00 bcdDevice 74.37 iProduct 2 Manufacturing Test Mode (Basic) iSerial 3 DSIP293DL4121-02.A5D.934 All this type of screen we have tried so far (5) have failed in the same way. Please can you advise how we can recover these broken screens and how we can upgrade without having this issue?