[ltp] suspend works with i915 module, but without, it fails!

[Volker Krueger]

dear all,

two small corrections: of course it is kernel 2.6(!).27.7

and in case of the wakeup after the standby: the screen does not stay
blank as described below. My memory was wrong: the wakeup end where the
screen is black with the mouse pointer visible, i.e., the x-server
starts but then something freezes. I have not tried a remote login. In
case a remote login would work: which log file would be the one to look at?

does anyone have an idea how to debug that in general?

best,
Volker


Volker Krueger wrote:
> Hi,
>
> has someone observed this, too?
>
> my laptop happily suspends when the i915/dri  modules are loaded.
> However, it fails when I start the x-server without the i915/dri !!
>
> To be precise: I use suse11.1, with the std-kernel (kernel 2.7.27.7).
> The laptop: X200s
> Graphicscard:Intel Graphics Media Accelerator 4500MHD
>
> I compare the two x-server  settings, where one has the additional line 
>
> 'Option       "NoDRI"'
>
> in the Device-section.
>
> Without the NoDRI option, the suspend works perfecty. With this option,
> however, the laptop shuts down, but hangs somewhere after the wake-up,
> while the screen is still dark.
>
> The whole point for using NoDRI is that the X200s saves about 20%(!!)
> energy when on battery.
>
> any ideas?
>
> best,
> Volker
>
>