DS90UH926Q-Q1: lost display when reboot

enson Steven

Part Number: DS90UH926Q-Q1

Hi,

I use 926connect with 927,and sometimes when I reboot the uh927, the panel lost display, and never recover unless I powerdown them and then power up. When the 926panel doesn't show the picture, I try to enable

pattern generator, still doesn't work.

over 6 years ago

0 Steven(Shenzhen) Shi over 6 years ago

TI__Mastermind 30515 points

Enson,
"lost display" means no image in the panel? can you check the "lock" pin?
when you enable the pattern, it is UB926's?

best regards,
Steven

0 enson Steven over 6 years ago in reply to Steven(Shenzhen) Shi

Intellectual 630 points

yes, no image,only backlight.I check the register 0x1c is 0x03. yes ,I enable 926's pattern.

0 Steven(Shenzhen) Shi over 6 years ago in reply to enson Steven

TI__Mastermind 30515 points

Hi,
if no image is checked, you can have more debugs to find our more clues:
1. Please check the UB926's output PCLK, it is correct or not?
2. IF no PCLK after action1, you can check whether UB926 is set correctly? including pattern gen. setting...
3. IF PCLK is alive in the UB926 output, you also can check the RGB output data, are they correct? if yes, you can check the display panel issue.

best regards,
Steven

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DS90UH926Q-Q1: lost display when reboot