Re: 4.1-rc7: Xorg broken after resume on thinkpad T40p, radeon problem?

Hi!

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Unfortunately, not as far as I know.

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If yes it might be a good idea to bisect to narrow down the problem.

No such luck. I may try something like "3.0" if we are really desperate (2.6.X kernels probably won't won't boot with recent userland), but I suspect it just never worked.

The above looks very much like the issue that made me write commit 45171002b01b ("radeon: add AGPMode 1 quirk for RV250"). See https://bugzilla.redhat.com/show_bug.cgi?id=531825 for a lot of background.

Does booting with radeon.agpmode=1 survive a suspend and resume cycle?

Yes, that option helps. Thanks!

Pavel