ACPI Sleep on Thinkpad R40, wakeup fails for X11/radeon

[Tobias Roth]

On Thu, Jun 30, 2005 at 05:53:44PM -0400, Martin Cracauer wrote:
> Tobias Roth wrote on Thu, Jun 30, 2005 at 10:43:58PM +0200: 
> > On Thu, Jun 30, 2005 at 12:01:48PM -0400, Martin Cracauer wrote:
> > > Any ideas how I could fix suspend/resume on this Thinkpad?
> > > 
> > > 
> > > I have a Thinkpad R40 running 6.0-current.  It has a Radeon 7500 with
> > > 32 MB.
> > > 
> > > When I suspend it with zzz (ACPI actice), the machine sleeps and wakes
> > > up fine except the X11 server is unhappy.
> > > 
> > > The X11 server has some graphical corruption, never updates graphics
> > > and does not take keyboard input (Control-Alt-F2 etc are also disabled
> > > and just beep).
> > 
> > please make sure that you don't have dri in your x.org / xfree config
> 
> I have dri but not using it also fails with graphics corruption and
> hanging X11 server (not using CPU/syscalls, though).
> 
> That failure with no DRI is recoverable, though, X11 restarts fine
> after killing it.

then try experimenting with switching from X to a console before
suspending and switching back to X after resuming. if it works,
automate with hw.syscons.sc_no_suspend_vtswitch

cheers, t.