Search found 10 matches

by uberniner
08 Aug 2014, 12:57
Forum: G-SYNC
Topic: I got the ROG Swift (PG278Q) -- my tests
Replies: 60
Views: 71865

Re: I got the ROG Swift (PG278Q) -- my tests

I have a ROG in review and I was new from start there is something wrong going on while gaming. It was difficult to point out, but I think its related to this problem you shown. Here is my result (compared to QNIX) https://www.youtube.com/watch?v=-8S2KkJFFMY&feature=youtu.be Does anyone know the nam...
by uberniner
02 Aug 2014, 12:53
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: [I'm a reviewer] Quirks measuring input lag of ROG by ca

Chief Blur Buster wrote: Yes, even a 1/4000sec shutter can inject a 1/250sec error (4ms) due to the rolling shutter.
horizontal is "fine"
DSC_7663.JPG
DSC_7663.JPG (184.76 KiB) Viewed 6984 times
but vertical shows the delay of rolling shutter
DSC_7664.JPG
DSC_7664.JPG (163.13 KiB) Viewed 6984 times
by uberniner
02 Aug 2014, 12:43
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: [I'm a reviewer] Quirks measuring input lag of ROG by ca

Thanks for the info about rolling shutter, I knew about it but havent realized that it will affect the test. So I went to search some solution. A CCD camera instead of the CMOS seemed easy. Quickly I found out, that CCD is quite rare, but guess what - I bought a compact camera for my mother and its ...
by uberniner
01 Aug 2014, 16:34
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

Before I answer more fully, what exposure length did you use for these specific photos, and which model camera did you use? Many cameras have a 1/250sec scanout as flood says, which adds approx 50% error to a 120Hz refresh. Try testing portrait versus landscape as some cameras scan sideways, and se...
by uberniner
01 Aug 2014, 16:20
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

This is what I was asking about in my main question. If you could enlighten me a bit more in this area I would be grateful. What makes the LCD and CRT scan-out identically? It looks like the GPU is driving all clocks etc. What I originaly though was happening: LCD has internal Clock generator that ...
by uberniner
01 Aug 2014, 15:46
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

Thanks for elaborate explanation. Also, tearlines are always in identical positions on both LCD and CRT. The scanout is identical top-to-bottom, except for the lack of fade-to-black on a LCD. This is what I was asking about in my main question. If you could enlighten me a bit more in this area I wou...
by uberniner
01 Aug 2014, 15:00
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

ok, i will level the screens to the same height and shoot with even higher speeds, perhaps 1/4k could do. What do you think? Btw does anyone know how to setup gsync screen and at the same time duplicate to nongsync screen and run a fullscreen app (game) in gsync mode on one screen and just normal no...
by uberniner
01 Aug 2014, 11:27
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

Hello guys, and thanks for the response. By the way, great job, what you are doing here, I really appreciate it. At first - what do you mean by proper vsync off? I mean, can there be a state between on and off? Anyways I ran the tests at fullscreen and could see actually many tears + times different...
by uberniner
01 Aug 2014, 06:49
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

Re: Precise inputlag measurements revealed disturbing facts

nice work what graphics card are you using? i run on gtx680 lightning my camera is nikon dslr D7000 with shutter speed set over 1/1000 about the lcd vs crt synchro - I believe its on the exactly same spot, the fact that 952 fades is just pixel persistence, as well as that the 969 is already scanned...
by uberniner
01 Aug 2014, 03:00
Forum: Input Lag / Display Lag / Network Lag
Topic: [I'm a reviewer] Quirks measuring input lag of ROG by camera
Replies: 30
Views: 22400

[I'm a reviewer] Quirks measuring input lag of ROG by camera

Hi there! Recently I received the ASUS ROG Swift for review at PCTuning.cz. I decided to measure also the inputlag of this screen. Since the flash stopwatch/timers are quite a BS I went for my implementation. Done in Qt and OpenGL, it renders around 1000 fps with timer info in milliseconds in column...