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AMD/ATI Pixel Clock Patcher
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09-03-2017, 10:15 PM
Post: #805
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RE: AMD/ATI Pixel Clock Patcher
(09-03-2017 09:33 PM)daren@connectel.biz Wrote: Brilliant! Ran reset all, rebooted, Deleted the ext block and rebooted again and voila! works perfectly. Not sure exactly what all the patch did or how it worked, but it does and it does work on the ATI Radeon HD 4550!Sounds like the "SL-DVI limit on DL-DVI" part works with 4000-series GPUs at least, but only if the extension block doesn't have HDMI support in it. Newer video cards will send an HDMI signal through the DVI port, but I guess they didn't program that in for older video cards. The problem was the video card normally sends a dual-link DVI signal beyond 165 MHz, but since you're using a DVI-HDMI cable and HDMI is single-link, you were losing half the pixels, which is why it was blurry. The patch allows it to send a single-link DVI signal up to 230 MHz. |
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