AGP and Thinkpad APM/suspend problems

Reporting that both the IBM Thinkpad A31 and the Thinkpad T30 does not survive a suspend-resume cycle when the X server is configured to run at AGP >1x mode. The machines suspend fine. But an attempt to resume the machine, freezes it (requiring a cold reboot).

Both machines have Radeon Mobility Chipsets.

AGP speed is set using ==> "Option "AGPMode" "N" in /etc/X11/XF86Config-4

A note on XIG's website which might be relevant (seems to attribute the problem to APM):

3.0-28 05/07/2002

- corrected a problem that would cause multiple server invokations to hang on ATI chips. This was related to the APM fix made in the previous version.

3.0-27 05/06/2002

- corrected a problem with APM whereby the AGP bridge would not be shutdown/re-initialized properly during APM events. This could cause the server to lock in certain cases when the machine was 'woken up' after a suspend.