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Custom Resolution Utility (CRU)
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11-04-2015, 11:37 AM
(Last edited: 11-04-2015, 11:39 AM by falkentyne)
Post: #1755
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RE: Custom Resolution Utility (CRU)
(11-04-2015 07:21 AM)Fidelity Wrote: Hey guys, i'm using a BenQ XL2430T with a dual-link DVI and was able to reach with manual timings: Hi, You are using the wrong timings. You are using the 60hz timings for 100-130hz; this must not be done. These timings may or will cause image corruption because the scaler is being pushed too hard when you are using VT tweaks. Its fine without VT tweak but you can check "LCD standard" first to see your porch, sync and HT are too high. For 100hz and higher, change 88/4 to 48/3 for front porch. Change 44/5 to 32/5 for sync width change horizontal total to 2080. Vertical total is fine if you want to use VT tweak. LCD reduced is for refresh rates higher than 129hz if you get black screen out of range error, you must use VT 1098 from 130 hz - 145 hz. You can not use "VT tweak" at 130hz+. Firmware will not allow it. Toastyx can explain why 100hz/120hz don't use 88,4 and 44,5 and 2200 HT. If you check in CRU with "LCD standard" and enter 60hz you will see the timings. If you change 60hz to 100hz, you will see porch, sync and HT values change to lower. This will also lower the pixel clock too. 125hz with VT 1500 should be around 396 MHz pixel clock with (48,3) front porch, and (32,5) sync width and (2080) HT. Don't worry about polarity and don't change kHz manually. this is set by combination of other values. |
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