lcd only 60 hz

  dean-os 23:47 10 Aug 2003

i have a sony sdm-x72 and a rad 9000 pro graphics card and it only shows i can get a 60hz refresh rate should i be able to get more,also would a better card help

  hugh-265156 00:00 11 Aug 2003

i dont know much about lcd screens but im guessing that 60hz is the max you will get with it.its the way they are made.

i may be wrong though.

  JIM 00:19 11 Aug 2003

sdm-x72 60hz refresh rate is normal for TFT

Your monitor is capable of the following.

Dot Pitch 0.26 mm
Max Resolution 1280 x 1024
Color Support 24-bit (16.7M colors)
Max Sync Rate (V x H) 85 Hz x 92 kHz

9000 pro graphics card Card resoluion highest =2048 x 1536

  Ironman556 00:31 11 Aug 2003

You're probably using a DVI connection to your monitor instead of an analgue connection. My TFT will run on analogue at 75Hz or digital (DVI)60Hz at 1280*1024 resolution. The new TFT's are digital as you can get improved sharpness etc. that way, and the higher refresh rates aren't needed as much.

Unless you are a serious gamer there's no point really in upgrading your graphics card. The Radeon 9000 Pro will keep you going for quite a while yet. Even if you were to upgrade you may not notice a huge, if any, performance increase, depending on the rest of your system spec.

  Djohn 00:40 11 Aug 2003

Digital Multiscan Technology - accurate resolutions up to 1280 x 1024 @ 85Hz (Optimum viewing at 1280 x 1024)

Right click on desktop, choose properties/settings/advanced/adaptor, then click on "List all modes", this should give you the option of selecting 85hz. j.

  hugh-265156 00:44 11 Aug 2003

install the latest drivers for the radeon click here

  Stuartli 09:01 11 Aug 2003

The refresh rate on an LCD/TFT is not as important as with a CRT, which needs to be at least 85MHz to avoid flicker.

  DieSse 09:40 11 Aug 2003

Yes - just to add to the above - the persistence (the length of time the image stays on the screen if it isn't refreshed)on an lcd is much longer than a CRT - thus you don't need to refresh it so quickly to get a flicker-free image.

The downside of the same factor is that lcds are prone to "ghosting" with fast moving images.

It's ironic that in the early days of CRT monitors, much effort was put into reducing the persistence, to avoid ghosting - now we have to have the same effort all over again with lcds.

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