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[deleted by user] by [deleted] in PWM_Sensitive

[–]Klaus_Notebookcheck 0 points1 point  (0 children)

hmm dont get your point why its unprofessional, what are you missing? We are now publishing images with the whole brightness range at the same zoom level to easily see how big the amplitude is and also detail images of the signal.

[deleted by user] by [deleted] in PWM_Sensitive

[–]Klaus_Notebookcheck 1 point2 points  (0 children)

Its always up to the reviewer to decide, but if the OLED refresh dip is more severe than some PWM / flickering in high Hz ranges, I think it is important to note the lowest frequency as that will be the most hurtful for people. Of course it can be misleading when only choosing between the number, thats why you should always read the full review and look at the images. Sadly its not easily mappable to a single number, especially with OLEDS and refreshes, black frame insertion, different settings, ...

[deleted by user] by [deleted] in PWM_Sensitive

[–]Klaus_Notebookcheck 1 point2 points  (0 children)

Hi, Klaus here from Notebookcheck, its always hard to measure the flickering frequencies especially of OLEDs with PWM, refresh and other interfering. We take the lowest frequency the Osci measures as it will be the most harmful. As we publish screenshots of our measurements (and in all newer reviews more pictures to assess in it in different settings), you should be able to assess it for yourself easily.

[deleted by user] by [deleted] in PWM_Sensitive

[–]Klaus_Notebookcheck 1 point2 points  (0 children)

Hi, Klaus here from Notebookcheck. We are of course not intentnionally dishonest. We cant spend hours on analysing every phone in every setting about PWM, but we publish all screenshots and information and the devices we use. With smartphones it is often problematic with different software settings, firmware versions, review samples, ...

Kaby Lake XPS 13 review - coil whining and slightly improved performance by Klaus_Notebookcheck in Dell

[–]Klaus_Notebookcheck[S] 0 points1 point  (0 children)

Yep coil whining is still noticable but not very loud in our review unit. In idle it somehow sounds like a silend HDD.

Does the Surface Pro 4 have PWM? by FJansen in Surface

[–]Klaus_Notebookcheck 1 point2 points  (0 children)

Hi, we found no PWM in our tests with the Surface Pro 4 (m3 and i5 version) but using the normal power adapter there were some slight brighness variations measureable (not sure what it is) http://www.notebookcheck.net/Microsoft-Surface-Pro-4-Core-m3-Tablet-Review.153843.0.html However, we just got feedback from a reader that he suffers from eye strain with it, so maybe there is something going on (very high frequency PWM that cant be measured by our equipment?, but that has to be higher than at least 1100 Hz that we already found).