Hi Bunsen!
I've tried it with both the stock drivers which came with the OS 9.x installs as well as more recent drivers which I've downloaded from a repository of ATI drivers located on a Hungarian server (http://gona.atw.hu/ATI_Mac). I can't seem to find out why it does what it does, it strikes me as peculiar since obviously the hardware's capable of supporting the required video mode. Perhaps you know of a certain driver build which will work best on this platform?
The adapter is currently connected to the flat panel via the analogue VGA port (had no ADC converter), so there's definitively a chance that the analogue-->digital conversion may be the culprit. I'll try and see if perhaps using a digital connection to the flat panel will make a different. I've got an ADC -> DVI-D adapter shipping my way as we speak and therefore won't be able to test my theory until I receive the hardware. Also, since the Rage 128 Pro card is "kinda gimp" in comparison to more recent models, I was able to get my hands on a Radeon 7500 Mac Edition which should make a rather decent upgrade in terms of being more recent generation hardware, giving better 3D performance, and Quartz Extreme under X, so perhaps that may also do the trick. I guess it will remain to be seen. Unless I/we can figure out what may cause this I'll have to wait until the upgrades comes in so I can retry this again... this blows
I've tried it with both the stock drivers which came with the OS 9.x installs as well as more recent drivers which I've downloaded from a repository of ATI drivers located on a Hungarian server (http://gona.atw.hu/ATI_Mac). I can't seem to find out why it does what it does, it strikes me as peculiar since obviously the hardware's capable of supporting the required video mode. Perhaps you know of a certain driver build which will work best on this platform?
The adapter is currently connected to the flat panel via the analogue VGA port (had no ADC converter), so there's definitively a chance that the analogue-->digital conversion may be the culprit. I'll try and see if perhaps using a digital connection to the flat panel will make a different. I've got an ADC -> DVI-D adapter shipping my way as we speak and therefore won't be able to test my theory until I receive the hardware. Also, since the Rage 128 Pro card is "kinda gimp" in comparison to more recent models, I was able to get my hands on a Radeon 7500 Mac Edition which should make a rather decent upgrade in terms of being more recent generation hardware, giving better 3D performance, and Quartz Extreme under X, so perhaps that may also do the trick. I guess it will remain to be seen. Unless I/we can figure out what may cause this I'll have to wait until the upgrades comes in so I can retry this again... this blows