Originally Posted by JaXXoN
I guess the problem is that the T221 has a maximum refresh rate of 41 Hz
whereas the modeline (and the built-in EDID) assume 60Hz. Maybe it helps
to reduce the pixel clock frequency in the modeline 308.00 MHz to
308*41/60 = 210.46 MHz?
That doesn't matter as its not reading the EDID info and it will take a 60 Hz signal even though the internal refresh rate is 41 Hz.