I had the same problem, when I installed linux I did it at work using an SGI monitor (can't remember which model). However, I found a VGA adapter in HMV music and video/videogames store for 25 pounds (sterling) called "Blaze VGA Adaptor for Playstation(R)2" (google it, as I can't get the web page [www.xploder.net] to work!). It works well and you only need the hardware that it comes with (the software is for attempting to get normal games working on VGA. I haven't tried it with games as my PS2 is on the Net pretty much all the time (http://frik.mvc.mcc.ac.uk/).
I had the same problem, when I installed linux I did it at work using an SGI monitor (can't remember which model). However, I found a VGA adapter in HMV music and video/videogames store for 25 pounds (sterling) called "Blaze VGA Adaptor for Playstation(R)2" (google it, as I can't get the web page [www.xploder.net] to work!). It works well and you only need the hardware that it comes with (the software is for attempting to get normal games working on VGA. I haven't tried it with games as my PS2 is on the Net pretty much all the time (http://frik.mvc.mcc.ac.uk/).