Changes

Jump to navigation Jump to search

C779-Software

1,185 bytes added, 12:35, 27 December 2021
no edit summary
sudo nano edid.txt
#copy the above commend in edid.txt, save&exit;
</pre>
<pre>
pi@raspberrypi:~ $ v4l2-ctl --set-edid=file=edid.txt --fix-edid-checksums
 
CTA-861 Header
IT Formats Underscanned: yes
Audio: yes
YCbCr 4:4:4: no
YCbCr 4:2:2: no
 
HDMI Vendor-Specific Data Block
Physical Address: 3.0.0.0
YCbCr 4:4:4 Deep Color: no
30-bit: no
36-bit: no
48-bit: no
 
CTA-861 Video Capability Descriptor
RGB Quantization Range: yes
YCC Quantization Range: no
PT: Supports both over- and underscan
IT: Supports both over- and underscan
CE: Supports both over- and underscan
</pre>
 
The driver does NOT automatically switch to the resolution detected. Use the command:
<pre>
pi@raspberrypi:~ $ v4l2-ctl --query-dv-timings
Active width: 1280
Active height: 720
Total width: 1650
Total height: 750
Frame format: progressive
Polarities: -vsync -hsync
Pixelclock: 74250000 Hz (60.00 frames per second)
Horizontal frontporch: 0
Horizontal sync: 370
Horizontal backporch: 0
Vertical frontporch: 0
Vertical sync: 30
Vertical backporch: 0
Standards:
Flags:
</pre>

Navigation menu