I have OpenBSD 7.0 on my PowerMac G4. The graphics card is a Radeon 9000 using the RV250 driver. When running Openbox the desktop freezes. Under Linux I would add the kernel parameter radeon.agpmode=-1 to force the card to PCI mode. This has fixed the issue in the past. I believe in Xorg the setting is Option “BusType” “PCI”. I added that to the 10-radeon.conf file but still getting the lockup. Does anyone have an idea on what I am missing?
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