Samsung SyncMaster 740n Phase Control Issue

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  • vincentedel
    New Member
    • Apr 2025
    • 1
    • United States

    #1

    Samsung SyncMaster 740n Phase Control Issue

    Hello,
    I'm having an issue with the Samsung 740n's phase control setting. When I use the automatic adjustment, it sets the value to around 54 (with a range of 0-100), and the picture looks clear and sharp. However, after some time—like after playing a game—the text starts to look blurry. When I auto-adjust again, it may increase the value to 80, and everything becomes sharp once more. Yet, after a while, whether it's a few hours or a day later, the same blurriness returns, and I have to adjust it again.

    I'm using the Samsung 740n monitor drivers instead of the default plug-and-play drivers, which I also tried, but that didn't fix the issue.

    Does anyone have any suggestions?​
  • eccerr0r
    Solder Sloth
    • Nov 2012
    • 8688
    • USA

    #2
    Do also consider your video card as a potential issue...
    Looks like this is an analog only monitor like my old 17" that I bought when they first came out...

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