Fix HDMI2USB output with Blackmagic gear

[xfxf]

During Wrest Point testing, the Opsis would not output successfully to the Blackmagic gear they have in the Plenary hall (ATEM TV Studio, and separately a Blackmagic HDMI to SDI converter they use for running long lines).

No video is detected / shown. Tried all 720p and 1080p resolutions available.

@xfxf has identical equipment with him at the Hackfest that can be used for testing.

[mithro]

@xfxf Can you dump the EDID info of both those devices?

[xfxf]

@mithro can you confirm we're just going to use scalers for now?

[mithro]

Scalers are the current plan, I'm going to have another play with it today.

My current theory is that they require a proper HDMI signal and don't support the DVI1.0 signal we are sending. /However/, I could be wrong and it could be a timing problem.

It would really help for @joeladdison to finish the EDID mode-line addition stuff, then I could add the exact mode lines that the blackmagic device is advertising and make sure it isn't something like that.

[mithro]

I'm also a little worried that we don't have enough scalers - @xfxf Can you update https://docs.google.com/spreadsheets/d/1uc_QICAHcZtQpQxt8bpTy2hKk7BN11h375hLQG0wcoA/edit as a matter of priority?

[mithro]

HDMI1 connected 1280x720+1366+0 (normal left inverted right x axis y axis) 708mm x 398mm
    EDID:
        00ffffffffffff002301000001000000
        26100103804728960adaffa3584aa229
        17494b00000001010101010101010101
        010101010101011d8018711c1620582c
        2500c48e2100009e011d007251d01e20
        6e285500c48e2100001e000000fc0042
        4d442048444d490a20202020000000fd
        00323c1f4408000a202020202020019a
        02031c76488584879493960312230904
        078301000066030c000000008c0aa014
        51f01600267c4300138e21000098011d
        80d0721c1620102c2580c48e2100009e
        011d00bc52d01e20b8285540c48e2100
        001e8c0aa02051201810187e2300138e
        21000098000000000000000000000000
        00000000000000ffffffffffffffffff
    aspect ratio: Automatic
        supported: Automatic, 4:3, 16:9
    Broadcast RGB: Automatic
        supported: Automatic, Full, Limited 16:235
    audio: auto
        supported: force-dvi, off, auto, on
   1920x1080i    60.00 +  50.00    59.94  
   1280x720      60.00*   50.00    59.94  
   1440x576i     50.00  
   1440x480i     59.94  
   720x576       50.00  
   720x576i      50.00  
   720x480       60.00    59.94  
   720x480i      60.00    59.94  
HDMI2 disconnected (normal left inverted right x axis y axis)
    aspect ratio: Automatic
        supported: Automatic, 4:3, 16:9
    Broadcast RGB: Automatic
        supported: Automatic, Full, Limited 16:235
    audio: auto
        supported: force-dvi, off, auto, on
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

[mithro]

Extracted contents:
header:          00 ff ff ff ff ff ff 00
serial number:   23 01 00 00 01 00 00 00 26 10
version:         01 03
basic params:    80 47 28 96 0a
chroma info:     da ff a3 58 4a a2 29 17 49 4b
established:     00 00 00
standard:        01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
descriptor 1:    01 1d 80 18 71 1c 16 20 58 2c 25 00 c4 8e 21 00 00 9e
descriptor 2:    01 1d 00 72 51 d0 1e 20 6e 28 55 00 c4 8e 21 00 00 1e
descriptor 3:    00 00 00 fc 00 42 4d 44 20 48 44 4d 49 0a 20 20 20 20
descriptor 4:    00 00 00 fd 00 32 3c 1f 44 08 00 0a 20 20 20 20 20 20
extensions:      01
checksum:        9a

Manufacturer: HXA Model 0 Serial Number 1
Made week 38 of 2006
EDID version: 1.3
Digital display
Maximum image size: 71 cm x 40 cm
Gamma: 2.50
Supported color formats: RGB 4:4:4, YCrCb 4:4:4
First detailed timing is preferred timing
Established timings supported:
Standard timings supported:
Detailed mode: Clock 74.250 MHz, 708 mm x 398 mm
               1920 2008 2052 2200 hborder 0
                540  542  547  562 vborder 0
               +hsync +vsync interlaced 
Detailed mode: Clock 74.250 MHz, 708 mm x 398 mm
               1280 1390 1430 1650 hborder 0
                720  725  730  750 vborder 0
               +hsync +vsync 
Monitor name: BMD
Monitor ranges (GTF): 50-60Hz V, 31-68kHz H, max dotclock 80MHz
Has 1 extension blocks
Checksum: 0x9a (valid)

CEA extension block
Extension version: 3
24 bytes of CEA data
  Video data block
    VIC   5 1920x1080i@60Hz (native)
    VIC   4 1280x720@60Hz (native)
    VIC   7 1440x480i@60Hz (native)
    VIC  20 1920x1080i@50Hz (native)
    VIC  19 1280x720@50Hz (native)
    VIC  22 1440x576i@50Hz (native)
    VIC   3 720x480@60Hz 
    VIC  18 720x576@50Hz 
  Audio data block
    Linear PCM, max channels 2
    Supported sample rates (kHz): 48
    Supported sample sizes (bits): 24 20 16
  Speaker allocation data block
    Speaker map: FL/FR
  Vendor-specific data block, OUI 000c03 (HDMI)
    Source physical address 0.0.0.0
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
6 native detailed modes
Detailed mode: Clock 27.000 MHz, 531 mm x 398 mm
               1440 1478 1602 1716 hborder 0
                240  244  247  262 vborder 0
               -hsync -vsync interlaced 
Detailed mode: Clock 74.250 MHz, 708 mm x 398 mm
               1920 2448 2492 2640 hborder 0
                540  542  547  562 vborder 0
               +hsync +vsync interlaced 
Detailed mode: Clock 74.250 MHz, 708 mm x 398 mm
               1280 1720 1760 1980 hborder 0
                720  725  730  750 vborder 0
               +hsync +vsync 
Detailed mode: Clock 27.000 MHz, 531 mm x 398 mm
               1440 1464 1590 1728 hborder 0
                288  290  293  312 vborder 0
               -hsync -vsync interlaced 
Checksum: 0xff (should be 0x51)

EDID block does NOT conform to EDID 1.3!
    Detailed block string not properly terminated
EDID block does not conform at all!
    Block has broken checksum

[xfxf]

Windows machine configured with Blackmagic ATEM software, to remotely control. Note documentation indicates it needs both the USB + ethernet connected (static IP, 192.168.10/24).

[mithro]

As I expected, despite outputting the exact details requested by the BlackMagic mixer (thanks to @joeladdison 's "Custom EDID Mode" thingy) - still not getting anything on the BlackMagic Mixer...

Tried the following; 720p50

74.25 1280 1720 1760 1980 720  725  730  750 +hsync +vsync

720p60

74.25 1280 1390 1430 1650 720  725  730  750 +hsync +vsync

Can we try the blackmagic sender thingies?