Custom Resolution Utility (CRU)
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01-30-2017, 12:00 AM
Post: #2583
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RE: Custom Resolution Utility (CRU)
(01-28-2017 05:21 PM)DustinEarnhardt Wrote: Background:The problem is you're trying to get 3840x2160 @ 60 Hz on an old video card that has no way of supporting such a resolution. 3840x2160 @ 60 Hz requires HDMI 2.0 or DisplayPort 1.2 with HBR2, neither of which are supported by the HD 6870. DisplayPort without HBR2 on AMD cards is usually limited to 360 MHz pixel clock with 8-bit color and 480 MHz pixel clock with 6-bit color. Some early 3840x2160 monitors used multi-stream transport to get around that limitation, but I don't think the P2715Q has that option. The patch does nothing for DisplayPort limits, so you'll have to keep those limits in mind when adding custom resolutions. Have you tried other refresh rates like 40 Hz and 50 Hz? |
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