https://bugzilla.kernel.org/show_bug.cgi?id=25052

--- Comment #14 from Elmar Stellnberger estellnb@gmail.com 2011-02-15 22:12:58 --- Great! Your patch works for kernel 2.6.38-rc2-0.0.7.4bf0e68-desktop. I can start an X-server over HDMI with radeon.audio=0 but not without. However this may be of not too great use to us since this specific kernel version triggers a fallback to UMS as KMS is broken there (and bisecting it won`t make sense either since it is a bug not an antibug). Nonetheless taking the DVI-edid is a definite improvement. Tomorrow I will re-test with drm.edid_strict=0 on this particular kernel version and commence tests per VGA connector. There also still seems to be a bug in KMS itself not only in the EDID the monitor gives us (Your patches won`t do the job on kernels where it doesn`t work with DVI either; as far as I can see that, so that testing them there won`t be of use.).