Lilliput UM-70 7" USB Monitor

Getting your soundcard to work, using Debian on non-i386 hardware, etc

Lilliput UM-70 7" USB Monitor

Postby scar » 2019-06-29 11:43

Hi all, wondering how to get this monitor working correctly in Debian stretch with Gnome. It worked seamlessly when I was using Ubuntu 14.04 with Gnome, so there must be some way. As soon as I plugged it in, it would show up in the Gnome Displays and I could turn it on/off and re-position it and it worked great. Now on Debian I just see these messages in the system log:

Code: Select all
Jun 29 04:57:12  kernel: [580532.941168] usb 1-1.2: new high-speed USB device number 5 using ehci-pci
Jun 29 04:57:12  kernel: [580533.053282] usb 1-1.2: New USB device found, idVendor=17e9, idProduct=02a9
Jun 29 04:57:12  kernel: [580533.053286] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jun 29 04:57:12  kernel: [580533.053288] usb 1-1.2: Product: LILLIPUT USB Monitor
Jun 29 04:57:12  kernel: [580533.053290] usb 1-1.2: Manufacturer: DisplayLink
Jun 29 04:57:12  kernel: [580533.053292] usb 1-1.2: SerialNumber: 8745014043
Jun 29 04:57:12  kernel: [580533.054159] udlfb: DisplayLink LILLIPUT USB Monitor - serial #8745014043
Jun 29 04:57:12  kernel: [580533.054161] udlfb: vid_17e9&pid_02a9&rev_0123 driver's dlfb_data struct at ffff94609190f800
Jun 29 04:57:12  kernel: [580533.054162] udlfb: console enable=1
Jun 29 04:57:12  kernel: [580533.054163] udlfb: fb_defio enable=1
Jun 29 04:57:12  kernel: [580533.054164] udlfb: shadow enable=1
Jun 29 04:57:12  kernel: [580533.054366] udlfb: vendor descriptor length:17 data:17 5f 01 00 15 05 00 01 03 00 04
Jun 29 04:57:12  kernel: [580533.054367] udlfb: DL chip limited to 1500000 pixel modes
Jun 29 04:57:12  kernel: [580533.054401] udlfb: allocated 4 65024 byte urbs
Jun 29 04:57:12  mtp-probe: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2"
Jun 29 04:57:12  mtp-probe: bus: 1, device: 5 was not an MTP device
Jun 29 04:57:12  kernel: [580533.142627] udlfb: 800x480 @ 59 Hz valid mode
Jun 29 04:57:12  kernel: [580533.142630] udlfb: Reallocating framebuffer. Addresses will change!
Jun 29 04:57:12  kernel: [580533.143366] udlfb: 800x480 @ 59 Hz valid mode
Jun 29 04:57:12  kernel: [580533.143368] udlfb: set_par mode 800x480
Jun 29 04:57:12  kernel: [580533.144981] udlfb: DisplayLink USB device /dev/fb1 attached. 800x480 resolution. Using 1504K framebuffer memory


So it looks like it get detected and initialized properly. The amber power light comes on and the display turns on (black screen). Usually light will change green when it's activated. I can turn it on/off and the same messages show up in the system log, but the light stays amber and it never shows up in the Gnome Displays. I tried to search around and only found really old articles for Ubuntu 10 which are really involved with changing kernel modules and configuring x11.org.conf file... I didn't have to do any of that with Ubuntu 14.04 so I'm wondering if there are just some extra packages I need to install or what to make this user-friendly again. Thanks
scar
 
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Re: Lilliput UM-70 7" USB Monitor

Postby Head_on_a_Stick » 2019-06-29 14:20

What is your graphics hardware & driver?

Have you installed any non-free firmware that may be required by your hardware?
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Re: Lilliput UM-70 7" USB Monitor

Postby scar » 2019-06-29 21:05

Not sure how to find that info. lspci says,

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Also not sure what firmware might be required for the USB monitor
scar
 
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Re: Lilliput UM-70 7" USB Monitor

Postby Head_on_a_Stick » 2019-06-30 12:34

scar wrote:Not sure how to find that info.

The lspci command is good for that, read the man page to find out about the various options (including how to show the kernel drivers for any given device).

scar wrote:not sure what firmware might be required for the USB monitor

I was thinking of firmware for the graphics card but yours doesn't need any,

I have no idea why your monitor isn't working, sorry.
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