Results 1 to 3 of 3

Thread: Graphics Quality via a KVM

  1. #1
    Senior Member
    Join Date
    Mar 2004
    Location
    Yatton, North Somerset
    Posts
    449
    Thanks
    12
    Thanked
    7 times in 7 posts

    Graphics Quality via a KVM

    Does anyone having any experience or knowledge of the comparative degradation in graphics performance and quality between ATI and NVidia products when connected to a monitor via a KVM?

    The reason I ask is that I have multiple PCs connected via a Belkin Omniview KVM (this one) and whilst NVidia cards (8600GT, 8300LE, 8800GT) seem to always recognise my Dell 2407WFP monitor and perform quite happily at 1920x1200, both the ATI Radeon cards I have tried (3870 and 4850) fail to do so.

    By this I mean that the monitor is not recognised by the ATI Catalyst Control Centre software; the DDC (?) data is not recognised and I have to manually set the monitor's resolution and refresh rate (1920x1200 @ 60Hz). The screen display then suffers from distortion, wavering and flickering in the top inch or so, be it on the 2D Windows desktop or via DirectX 3D in a game.

    For clarity and (hopefully) to forestall any questions:

    - PCs are connected via Belkin (VGA - obviously) cables to the KVM, and thence via the Dell provided VGA cable to the monitor.
    - PCs are running Vista SP1 - I don't currently have a XP machine
    - Latest Radeon Catalyst drivers installed (8.8 at the time)
    _____________________

    New job, new home, new life! Feeling very positive


  2. #2
    Moosing about! CAT-THE-FIFTH's Avatar
    Join Date
    Aug 2006
    Location
    Not here
    Posts
    31,621
    Thanks
    3,757
    Thanked
    5,060 times in 3,912 posts
    • CAT-THE-FIFTH's system
      • Motherboard:
      • Less E-PEEN
      • CPU:
      • Massive E-PEEN
      • Memory:
      • RGB E-PEEN
      • Storage:
      • Not in any order
      • Graphics card(s):
      • EVEN BIGGER E-PEEN
      • PSU:
      • OVERSIZED
      • Case:
      • UNDERSIZED
      • Operating System:
      • DOS 6.22
      • Monitor(s):
      • NOT USUALLY ON....WHEN I POST
      • Internet:
      • FUNCTIONAL

    Re: Graphics Quality via a KVM

    I had image degradation problems and Vista would not recognise my monitor(and its native resolution) either until I installed the drivers for it!! I am using a HD3870.However I was using a DVI to vga converter too. Also I noticed there was a lag with the mouse and keyboard when playing games too. I was using a Belkin Switch2.

  3. #3
    Senior Member
    Join Date
    Mar 2004
    Location
    Yatton, North Somerset
    Posts
    449
    Thanks
    12
    Thanked
    7 times in 7 posts

    Re: Graphics Quality via a KVM

    Similarly, my video signal goes graphics card -> DVI to VGA converter -> VGA cable -> KVM -> Dell VGA cable -> monitor. I appreciate that this is quite a convoluted run, but the Dell monitor driver which works perfectly well with NVidia cards. The Catalyst Control Centre refuses to recognise it and has to be 'forced' to display wide-screen resolutions.
    _____________________

    New job, new home, new life! Feeling very positive


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Graphics card problem
    By uchiha_itachi in forum Help! Quick Relief From Tech Headaches
    Replies: 5
    Last Post: 26-03-2007, 12:52 AM
  2. Replies: 4
    Last Post: 12-08-2005, 05:24 PM
  3. Random Reboots and Corrupt Graphics....
    By Speed in forum Graphics Cards
    Replies: 24
    Last Post: 14-02-2005, 12:25 PM
  4. Replies: 14
    Last Post: 24-12-2004, 08:50 PM
  5. Graphics Cards Advice Please
    By smokie10 in forum Graphics Cards
    Replies: 6
    Last Post: 22-11-2004, 10:40 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •