Hardware/FPGA Twitter: I've built a really simple VGA module in VHDL for an FPGA. When connecting it directly to a VGA screen it looks fine but when running it through a VGA<->HDMI converter I get horizontal wobble. Where do I start troubleshooting?
Can you video the effect? My section "VGA Clock Stability" in https://io.netgarage.org/arm/digitalcold/ … may be part of the issue. Here's a video of the flicker I experienced:https://youtu.be/JQcPPcMlzJ8?t=97 …
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It was a borrowed FPGA that is now returned to my friend but judging from the description in your text and the video I think it's the same issue and it might absolutely be clock instability. No vertical jitter but every scanline jumping right/left 1-2 pixels. Thanks!
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