AMD/ATI Pixel Clock Patcher

[falkentyne]

(07-12-2015 03:29 PM)eucalyptux Wrote:  Thank you for taking the time to explain this, its a bit more clear for me now

Do you have any tip for the AMA setting ? I have hear that this had some change in v4, and what about the "hidden AMA" ?

Finally, what is the ideal contrast setting ?

There are people with a ton of knowledge of the subject on this forum and on blurbusters but i think it lacks a complete guide , I find that those informations are very scattered.

You should post questions like these in the blur busters forum, as this is a bit off topic now.

But I have the XL2720Z and the AMA functions slightly differently on the 27" and 24" screens although BOTH screens still have too much AMA compared to a screen with REALLY nice overdrive (Like VG248QE) and I don't think this was fixed until the XL2730Z (much better AMA improvement, but broken strobe at 100hz and 60hz, go figure).

XL2720Z and XL2411/20Z normal V4 settings:
XL2720Z seems to have less aggressive AMA than XL 24" screens
XL2411Z AMA high seems to look like XL2720Z AMA premium.
Lightboost mode on XL2411Z looks MUCH better than Lightboost mode on XL2720Z.

XL2720Z contrast=40 seems to have half the inverse AMA overshoot intensity/artifacts of contrast=50. I don't know if this applies to XL2411z or not.

V4 firmware: on XL2720Z, turning on blur reduction and then setting AMA to high after blur reduction is already enabled, seems to reduce the AMA intensity by half or more (rather drastic), effectively making it look the same as Lightboost mode on the exact same screen, if you reduce contrast to 0 (lowest amount of ghosting AFTER you do this) to compare Lightboost and Benq MBR. Lightboost mode on the 24" XL's still looks better than it does on the XL2720Z, though. At default contrast of 43 (correct white point), the inverse artifacts are turned into normal ghosting (Very low amount of AMA) after doing this toggle. For best results after this toggle, reduce contrast to 15 or lower or you will have too much normal ghosting (XL2720Z only)
For Blur reduction, this is effectively "AMA Low" on XL2720Z.

On XL2411Z, this toggle only reduces the AMA slightly, instead of drastically. XL2720Z AMA premium seems to do this also--slight AMA reduction instead of drastic AMA reduction (that's why I think that XL2720Z premium= XL2411Z high).
I do NOT know why Benq did not include this "Low" hidden setting on the 2411z and 2420z and only threw in a 'slightly less than overly high" "setting. It also does not apply to blur reduction off either.

About contrast: experiment between contrast 40-50. Do not exceed 50.

The main reason with lack of information about V4 firmware is there is still no 'official' way to update, and Benq still has V2 on gaming download site, even though all monitors shipping since March should have V4.