I am a very happy owner of a Samsung HL-R6168w. Yesterday, we finally hooked up my kids' iMac G5 to the 6168 via their respective VGA ports. We had no trouble getting the image to display at all 6168-supported resolutions up to 1280x1024 (at both 60 and 75Hz).
However, we are unable to display at the 6168's highest supported resolution of 1920x1080. Since this is a 1080p display you would think there would not be a problem. The iMac supports far more resolutions than are shown in the 6168's compatibility chart below. As you will see in the notes, the Samsung manual says the optimal resolution is 1920x1080 at 60. However, when we set he iMac's output to that level, we get an error message from the 6168 about an incorrect signal.
I am not display expert so I ask for assistance. I do note that the 6168's chart indicates support of 1920x1080 at 59.988 Hz -- is that different from the 60hz the iMac outputs? Also, the vertical polarity for this resolution in the chart below is shown as negative -- what's that about and can I make that happen with the iMac?
I have not tried the 1920x1080 from a PC but will try that tonight. In the interim, any thoughts would be appreciated.
Tom
Excerpt from Samsung manual:
NOTES • The Modes Table conforms to the regulations of IBM/VESA and is prepared based on analog input standards. • The optimal resolution is 1920 x 1080 @ 60Hz. • The optimal timing per each mode is the Vertical Frequency 60Hz. • Resolutions other than the resolutions above are not supported in PC mode. • Although the OSD menu may shake when selecting a PC input of 1920 x 1080, this is not a defect. Therefore, please use the unit as usual.