Custom Resolution Utility (CRU)

[ToastyX]

(07-02-2017 01:20 PM)Hardcore Wrote:  Both look identical to my eyes but I am pretty sure first one with lower timings is faster than the second one by about 10-20ms. I used humanbenchmark.com to test but difference is smaller than deviation error. In total going from 60 Hz on default timings to 76.979 Hz on lowest timings I think I god rid of about ~40 ms latency in total. Can you confirm which settings are better? Which polarity set is better in terms of lag? -/-? -/+? +/-? +/+?

The timing parameters have nothing to do with lag. Monitor lag can only happen if the monitor is buffering frames. I doubt that monitor has 40 ms of lag. If you can get 76.979 Hz without frame skipping, then the monitor probably has no lag other than pixel response times. Monitors that lag usually skip frames at higher refresh rates.

There's no need to mess with the timing parameters if it's working and you're not seeing artifacts or distortion. Higher numbers will just waste bandwidth and increase the likelihood of signal quality issues. Just make sure the vertical blanking/total is large enough so the video card can clock down when idle. I would just use the "LCD standard" timing parameters if that works.

(07-02-2017 01:20 PM)Hardcore Wrote:  Maybe some settings are the best to be as low as possible and the other as high as possible and both of my sets of settings aren't the fastest ones possible for my monitor Philips 273EL(MonInfo log)? It has DVI-D and D-Sub sockets. I use DVI-D(Single Link) cable for my monitor. Is DVI-D is actually better(in terms of latency and overclocking abilities) than D-Sub?

For most monitors, the lag would be the same on all inputs. Overclocking can vary depending on the input, but that depends on the monitor.

(07-02-2017 01:20 PM)Hardcore Wrote:  Also, I can go as high as 85 Hz(I have to use a little higher timings compared to my lowest values) and it 'works' fine without video artifacts, but once I go over 76.979 Hz, it starts to show a message from my monitor(on top of the working display behind the image) every ~1 minute for ~15 seconds saying:

Quote:Attention
This is 85 Hz overdrive
change computer display
input to 1920x1080 60 Hz

Is there any way I can do something to my monitor(like disassembling my monitor, taking out controller, patching few bits to not ever show any kind of menus) to never show this message? I believe I also read few years ago that it turns monitor off after 10 minutes of using monitor in this mode.

Unless you know how to hack the monitor's firmware, there's no way around that.