I have a Matrix Orbital LK204-25-USB running on Fedora 20 64-bit (kernel 3.16.6-203.fc20.x86_64). lcdproc is version 0.5.6-6.
The device ID given by lsusb is "Bus 002 Device 003: ID 1b3d:0157" though there is no descriptor string - is it missing from usb.ids in the hwdata package?
When I start LCDd I get the following output to the system log file:
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ov 04 22:04:32 localhost.localdomain systemd[1]: Starting LCDd Service...
Nov 04 22:04:32 localhost.localdomain LCDd[7225]: MtxOrb: unable to read device type
Nov 04 22:04:32 localhost.localdomain LCDd[7225]: MtxOrb: unable to read device firmware revision
Nov 04 22:04:32 localhost.localdomain LCDd[7225]: MtxOrb: unable to read device serial number
Nov 04 22:04:32 localhost.localdomain systemd[1]: Started LCDd Service.
(also tried "Type=lcd") andType=lkd
The display goes bright all over when the system boots, but then goes dark and stays that way. I get the following output when I try to start lcdproc:hasAdjustableBacklight=no
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Nov 04 22:18:13 localhost.localdomain systemd[1]: Starting lcdproc Service...
Nov 04 22:18:13 localhost.localdomain systemd[1]: lcdproc.service: control process exited, code=exited status=1
Nov 04 22:18:13 localhost.localdomain systemd[1]: Failed to start lcdproc Service.
Nov 04 22:18:13 localhost.localdomain systemd[1]: Unit lcdproc.service entered failed state.
Nov 04 22:18:13 localhost.localdomain lcdproc[7274]: sock_connect: connect failed
Nov 04 22:18:13 localhost.localdomain lcdproc[7274]: Error connecting to LCD server localhost on port 13666.
Nov 04 22:18:13 localhost.localdomain lcdproc[7274]: Check to see that the server is running and operating normally.
Grateful for any advice,
Andrew