I have had a Radeon 7500 with two monitors connected and Xinerama running for quite some time under RedHat 8. After upgrading to 9, I have a strange problem... After logging in, if I move the mouse pointer to the second monitor, the first monitor goes blank (and the monitor goes into standby). I can usually recover the display by doing Ctrl-Alt-F1 and then Alt-F7 to get back to X, but the problem happens again the second I cross into the second monitor. I've tried both my original RH8 XF86Config file and a new one I modified for dual-head after running the redhat-config-xf86 tool to create a clean config. One interesting thing is that this doesn't happen until the window manager is started. At the login screen, I can move back and forth between the two windows with no problem. However, it doesn't seem to be a metacity problem, as the problem also occurs if I kill metacity and start sawfish. I don't have another dual-head video card available to test and see if it is a bug in the nv driver for the 7500 card, but I don't see how that would be the culprit since this works fine before the window manager is started. Anyone have any successes/failures/insights with this? I'd file a bugzilla bug, but I'm not sure what component to file it under. Thanks DC
