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

Pavel Machek
2015-06-17T14:10:55Z

Hi!

> > Unfortunately, not as far as I know.
> >
> > > 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!