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HDMI Monochrome not working

Greg Schwartz
Prodigy 80 points
Other Parts Discussed in Thread: DLPC300

I am trying to use HDMI input to drive the LightCrafter with 1 LED at a time. Using the GUI, I set HDMI mode and the video is streaming correctly in RGB mode. Then, I select Red, Green, or Blue under "LED select" and press "Set" and the screen goes blank. I realize that my 24-bit RGB input signal should not look "normal" in monochrome mode, but I should be seeing something, right?

I can switch the bit depth in RGB mode with the expected results. 

Here are my version numbers:

DM365: 4.0

FPGA: 2.6.43

MSP430: 2.7

Thanks,

-Greg

  • 0
    TI__Expert 4500 points

    Hi Greg,

    You have the latest firmware on your device. If the RGB video is streaming correctly as you mentioned, you should be able to see the flickering screen with the same background ideally when you switch to monochrome mode.

    Can you please check the following:

    1. Check if the display is set correctly in "Graphical Properties" in your windows settings. Try to 'Clone Displays" after you have made the GUI settings (HDMI & Select 1 LED).

    2. If the above does not fix the problem, change the display mode to 'Pattern Sequence' and load any 1-8 bit map image and start the pattern sequence. Check if you can see the patterns when you change the LED to Red, Green and Blue.

    3. Try upgrading the EDID v1.0 firmware. Use either 608x684 or 864X40 resolution files. This firmware is part of the DLP LightCrafter Firmware 7 Software Bundle v2.0.1

    The binary EDID file can be found in the "DLPLightCrafter_FW_SW_v2.0.1" folder.

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 80 points

    Hi Divya,

    Thanks for your reply. Unfortunately, none of the above solutions fixed the problem.

    1) I Mirrored my display and the same thing happened - blank screen on the DMD (but not my laptop screen) when switching to Red HDMI input

    2) I also cannot display Pattern Sequences - a related error perhaps? I followed the instructions on Pages 20-21 of the user guide and I always get a "Command FAILED" error when I press start to initiate the sequence. I am using either 1-bit or 8-bit images downloaded from TI (correct 608x684 resolution) linked from another thread in this forum. These images display correctly in "Static Image" mode.

    3) I had already upgraded the EDID firmware that came with Software Bundle 2.0.1. Doing so again had no effect.

    I failed to mention that I am running this on a Mac. Are there known issues with v2.0.1 on Mac?

    Thanks,

    -Greg

  • 0 in reply to Greg Schwartz
    TI__Expert 4500 points

    Hi Greg,

    Can you post your Pattern Sequence settings?

    Did you make any hardware modifications on the board?

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 80 points

    Here is a screen shot of my Pattern Sequence settings. When I press "Start" I get "Command FAILED" 

    I have not made any hardware modifications. 

    Thanks,

    -Greg

  • 0 in reply to Greg Schwartz
    TI__Expert 4500 points

    Hi Greg,

    The pattern settings look good to me. Can you check few more things,

    1. Do you have a 2.0 red sticker on LightCrafter's thermal plate?

    2. Can you check if  R205 (below the DM365 on systems board) installed on your board? This is for extended pattern sequence mode. The v2.0 boards should have the resistor installed by default.

    3. In your settings, can you change the "number" from 0-7 and see if the images are displayed correctly in the preview pane. Sorry for several questions, but I am trying to see if its a hardware/ firmware issue.

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 80 points

    No problem. Thanks for taking the time to help me. 

    1) Yes, I have the 2.0 sticker.

    2) I don't see this resistor. I see a box listing many codes (R205, R208, R212, etc) with an arrow pointing to what I assume is the location those components would go, but there appears to be nothing there. 

    3) The images all display correctly in the preview pane, and I have also loaded each one as a static image and they all display correctly that way.

    Thanks,

    -Greg

  • 0 in reply to Greg Schwartz
    TI__Expert 4500 points

    Hi Greg,

    Can you install a zero ohm resistor at R205 and R202 should be removed if its present. 

    This should fix the Command Failed error in pattern sequence. Set the display mode to "Pattern Sequence" and upload the images as before.

    I am still trying to figure out the HDMI issue.

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 80 points

    Hi Divya,

    I don't really want to go soldering things onto the board if it was supposed to come with the resistor installed. I did try to short it with a wire pressed firmly across the two contracts, and this had no effect. The R202 resistor is also absent.

    The HDMI issue is more important to me anyway as I have no plans to use pre-loaded pattern sequences.

    I did notice that the startup splash screen says v1.0 even though I have the red 2.0 sticker on the device. Does this suggest a version problem?

    -Greg

     

  • 0 in reply to Greg Schwartz
    TI__Expert 4500 points

    Hi Greg,

    The version number (1.0) on the splash screens represent the DLPC300 controller bootloader version.

    I am unable to reproduce this issue on the LightCrafters I have here. Can you revert back to DM365 v3.31 and FPGA v 2.4.39 and let me know your findings.

    The Software binary files are part of the DLP LightCrfater Firmware and Software Bundle v1.1 dated 11/08/2012 on LightCrafter page.

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 80 points

    Hi Divya, 

    I think I have narrowed down the problem. When I plugged the LightCrafter into a PC, the monochrome HDMI mode worked fine (flickering monochrome image) - even without downgrading anything. It seems that the Mac software is the culprit. I tried using the HDMI stream from the PC while the LightCrafter was controlled by the Mac (through the GUI) and the monochrome mode still did not work. Conversely, controlling the unit through the PC with the HDMI signal from the Mac works fine. 

    The software problem is not the GUI, per se, because switching to HDMI monochrome through tcip commands from Matlab also results in a black screen (even though my other commands through tcpip work fine). 

    -Greg