I've talked to quite a few people that have had problems getting
dualhead to work on radeon IGP chips. Specifically, the crt port seems
to go into powersave mode when dualhead is enabled. I talked to Hui Yu
at ATI about the problem and he hasn't seen it on his IGP boards using
the lastest code from cvs. So, for those of you that are having
problems please send me or Hui the output of this radeon register dump
To run this program, configure the non-working dualhead setup as usual,
login as root, startx or xinit, run radeon_dump in a xterm, redirect
the output to a file. Hopefully we will be able to pinpoint any
anomolies and fix the driver.
Please set up regular xinerama based multi-head rather than my mergedfb
version of multi-head.
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