Even though the GENDAC provides a set of standard clocks that can be found with the normal clock probing procedure, it is mandatory to put a
ClockChip "ics5341"
line into the Device Section to be able to use the programmable clocks that
the ICS5341 can produce. You can also add a
Ramdac "ics5341"
line, but the RAMDAC should be auto-probed correctly. Even though the
server currently accepts any dot clock up to 135MHz with the ICS5341 GENDAC,
most boards show a small band of clock values in the area between 86MHz and
about 100MHz that don't work. This are usually is just a few MHz wide, higher
clocks as well as lower clocks work just fine. I'm working on it. (DHH)