Custom Resolution Utility (CRU)
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11-02-2017, 10:54 AM
Post: #3258
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RE: Custom Resolution Utility (CRU)
Hello, I wonder whether CRU can help me solve the following problem.
I have a Sony Bravia 4K TV (KD-43X8309C) connected via high-speed HDMI cable to a Nvidia GTX 1060 running under Windows 10 64-bit. Windows 10 and the Nvidia control panel report that the display has 1920x1080 native resolution, which of course is wrong because the TV has a 3840x2160 LCD panel and it officially supports HDMI 2.0 (at least when the HDMI input is set to "advanced" as it is). This is not actually a problem because I can easily select 3840x2160 60 Hz in the Nvidia control panel and the Windows desktop is rendered beautifully. But sometimes the wrong info about native resolution could have adverse effects. The Nvidia control panel has a tab devoted to "GPU scaling" in which I can select [GPU] or [Display] scaling. When I select [GPU] any full-screen program that outputs a low resolution should be upscaled to the current resolution (which I set to 3840x2160) before reaching the HDMI output. This feature is not working properly because irrespective of the scaling setting:
I believe that the driver thinks that the display is 1920x1080 therefore it decides to not upscale the same resolution. The HDMI cable in use is sold with this advice: "Meets the latest HDMI standards (4K Video at 60 Hz, 2160p, 48 bit/px color depth) that supports bandwidth up to 18Gbps". TV firmware and Nvidia driver are updated to the latest version. Already contacted Sony and Nvidia but they are not terribly helpful to date. I feel that perhaps CRU can tell the Nvidia driver that the display has 3840x2160 native resolution, but I am afraid I don't understand how. |
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