I installed the nVidia drivers for my Quadro 2000 card using the ElRepo repositories. The install went fine and I ran nvidia-xconfig which generated a new xorg.conf file to use.

However, my monitor (a BenQ BL2710PT) displays the X-environment as blurry. Despite this the screenshot comes out as the correct resolution (2560 x 1440) looking clear.

I'm assuming this is something to do with the xorg.conf file, but I can't figure it out. I have added the lines

Option        "DPI" "109 x 109"
DisplaySize   596.8 335.6  #in millimeters

to the xorg.conf file under Section "Monitor", but that did not resolve the issue.

I should note that I had the same issue before I installed the nVidia drivers. This is a fresh install of RHEL and I thought the blurriness may be an issue of not using the correct drivers.

The monitor is recognized and shows it being displayed at the correct resolution, so I'm at a bit of a loss on what to tackle next. Any ideas would be appreciated.

  • Are you looking at the screenshot on this monitor or a different device? – casey Sep 14 '15 at 21:11
  • Does xdpyinfo | grep dots show 109x109? – drewbenn Sep 14 '15 at 21:13
  • @drewbenn I get xdpyinfo: unable to open display ""; guessing I should start there. – chasely Sep 15 '15 at 18:23
  • @casey I emailed it to myself and opened it on the same monitory hooked up to a different machine, the screenshot is clear. – chasely Sep 15 '15 at 18:24
  • @chasely might be a wild goose chase. I've had a blurry fonts issue and xdpyinfo helped identify it, but that doesn't mean it's the same as your issue. – drewbenn Sep 15 '15 at 19:24

My problem ended up being not having a duo-link DVI support from my graphics card. It scaled to 1920x1080 just fine, but doesn't support 2560x1440 @ 60Hz. There are apparently some workarounds to get to 2560x1440, but I'm happy with 1080p since it's not my main machine.

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