Re: URGENT! 7600CS (rev 02e1) stays black when screen via VGA extender
The CRT is not being detected:
(WW) NVIDIA(GPU-0): No connected display devices detected; assuming 1 CRT (CRT-0)
(WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-0
There's really nothing that can be done here in the driver, as your VGA extender seems to have signal integrity/degredation problems. If it can't maintain the quality of the signal, the driver isn't going to be able to work around that.
Have you confirmed that the problem is not present when connecting the CRT directly to the videocard without the VGA-extender and without a KVM?
Also, what kind of CRT are you using?