Description of problem: The radeon driver sets the wrong bits when attempting to set AGP 8x mode, resulting in a lockup when starting X (or a warning in /var/log/messages on newer Fedora kernels that have a workaround for this bug) Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.5.8.0-1 How reproducible: Always, if you have suitable hardware (any AGPv3 Radeon--e.g. RV280) Steps to Reproduce: 1. Install AGPv3 Radeon card 2. Set AGP speed to 8x in BIOS 3. Boot system 4. Log into X 5. After logging in (or lockup) look at /var/log/messages Actual results: As can be seen in /var/log/messages, driver attempts to set nonexistent "AGP 12x" mode, resulting in either lockup or warning message, depending on kernel. Expected results: Driver should correctly set AGP 8x mode. Additional info: kernel-2.6.18-1.2200_FC5 (and later) contains a workaround for this bug, but given the triviality of the fix (see attached patch, which I backported from xorg cvs) I think it's better if we just stamp it out at the source.
Created attachment 142165 [details] Radeon AGPv3 mode patch
Already included in the radeon driver in FC7, closing. Thanks for the report!