Been through two graphics cards one Mac ATI Radeon 7000 64MB AGP DVI Video Card G4/G5/Cube that gave me red lines across screens and a Mac ATI Radeon 9200 128MB PCI Video Card G4/G5 Edition that only saw one resolution size and made everything big and off color.
Is the problem with my card? Should I get a new card with more memory, more RAM memory (I have 896 now) or is the problem with my monitors, or my Mac? I am using a grey G4 with OS X. SoYo GoVideo Dual 19" monitors. PLEASE HELP!!! MAC USERS ANYONE??????
Video is unrelated to RAM. If your card has two connectors and the two monitors each have two of the same type of connectors, that is a good match and the card has enough video memory for the two monitors. If you have to use adapters for different types of connectors, weird things can happen. For example, older monitors may have VGA connectors and adapters for a DVI card may or may not work.
You don't mention if the problems with each of these cards is seen exactly the same way on both monitors. Is there any difference in the way the problem shows on each monitor?
The card that produced red lines was either improperly seated in the slot (unlikely), incorrectly connected to the monitor (most likely) or a defective card.
The card for which you had only one resolution option was likely fine. What version of the OS? For OS 10.2 and later, you probably have the drivers included with OS X so either there is a problem with the connection to the two monitors or the driver or preference files. To test for the latter, create a new admin user account, logout and login as the new user. Same? Then it's a physical problem, not likely software.
Connect and power on both monitors. Restart the computer. Open System Preferences > Displays. Do you see a tab called "Arrange"? If not, check all the connections again and restart.
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