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ADV7604 video auto detection failure

Question asked by ronak.desai on Mar 14, 2014
Latest reply on Mar 19, 2014 by DaveD

Hi,

 

We are using ADV7604 chip with DVI-D source, we have configured ADV7604 in HDMI mode and using linux driver to configure it. But, we are not able to detect video, albeit chip is detecting TMDS signal, it's TMDS PLL gets locked as shown in below log.

 

Anybody has faced this issue? If yes then please provide suggestions. Also, if somebody has i2c scripts to configure 7604 then we can use them.

 

r is capable of adv7604 1-0020: -----Chip status-----

doing capture

adv7604 1-0020: Chip power: on

adv7604 1-0020: Connector type: DVI-D

adv7604 1-0020: EDID: enabled

adv7604 1-0020: CEC: disabled

adv7604 1-0020: -----Signal status-----

adv7604 1-0020: Cable detected (+5V power): true

adv7604 1-0020: TMDS signal detected: true

adv7604 1-0020: TMDS signal locked: true

adv7604 1-0020: SSPD locked: false

adv7604 1-0020: STDI locked: false

adv7604 1-0020: CP locked: true

adv7604 1-0020: CP free run: on

adv7604 1-0020: Prim-mode = 0x1, video std = 0x2, v_freq = 0x0

adv7604 1-0020: -----Video Timings-----

adv7604 1-0020: STDI: not locked

adv7604 1-0020: No video detected

adv7604 1-0020: Configured format: 0x0p0 (0x0)

adv7604 1-0020: horizontal: fp = 0, -sync = 0, bp = 0

adv7604 1-0020: vertical: fp = 0, -sync = 0, bp = 0

adv7604 1-0020: pixelclock: 0

adv7604 1-0020: flags (0x0):

adv7604 1-0020: standards (0x0):

 

Thanks,

Ronak

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