Re: [patch] PM: suspend/resume debugging should depend on

Re: [patch] PM: suspend/resume debugging should depend on

[Al Boldi]

Mike Galbraith wrote:
> On Sun, 2006-11-19 at 09:33 -0800, Linus Torvalds wrote:
> > On Sun, 19 Nov 2006, Chuck Ebbert wrote:
> > > When doing 'make oldconfig' we should ask about suspend/resume
> > > debug features when SOFTWARE_SUSPEND is not enabled.
> >
> > That's wrong.
> >
> > I never use SOFTWARE_SUSPEND, and I think the whole concept is totally
> > broken.
> >
> > Sane people use suspend-to-ram, and that's when you need the suspend and
> > resume debugging.
>
> Here I am wishing I had the _opportunity_ to be sane.  With my ATI X850
> AGP card, I have no choices except swsusp or reboot.

You make it sound like suspend-to-ram is dependent on a correct display 
adapter to work; it doesn't even work on a machine without a display 
adapter.

see http://bugzilla.kernel.org/show_bug.cgi?id=7037


Thanks!

--
Al

Re: [patch] PM: suspend/resume debugging should depend on

[Pavel Machek]

On Sun 19-11-06 21:30:11, Al Boldi wrote:
> Mike Galbraith wrote:
> > On Sun, 2006-11-19 at 09:33 -0800, Linus Torvalds wrote:
> > > On Sun, 19 Nov 2006, Chuck Ebbert wrote:
> > > > When doing 'make oldconfig' we should ask about suspend/resume
> > > > debug features when SOFTWARE_SUSPEND is not enabled.
> > >
> > > That's wrong.
> > >
> > > I never use SOFTWARE_SUSPEND, and I think the whole concept is totally
> > > broken.
> > >
> > > Sane people use suspend-to-ram, and that's when you need the suspend and
> > > resume debugging.
> >
> > Here I am wishing I had the _opportunity_ to be sane.  With my ATI X850
> > AGP card, I have no choices except swsusp or reboot.
> 
> You make it sound like suspend-to-ram is dependent on a correct display 
> adapter to work; it doesn't even work on a machine without a display 
> adapter.
> 
> see http://bugzilla.kernel.org/show_bug.cgi?id=7037

Well, on 'normal' machines, video card is the most common problem.

							Pavel

-- 
Thanks for all the (sleeping) penguins.

Re: [patch] PM: suspend/resume debugging should depend on

[Al Boldi]

Pavel Machek wrote:
> On Sun 19-11-06 21:30:11, Al Boldi wrote:
> > Mike Galbraith wrote:
> > > On Sun, 2006-11-19 at 09:33 -0800, Linus Torvalds wrote:
> > > > On Sun, 19 Nov 2006, Chuck Ebbert wrote:
> > > > > When doing 'make oldconfig' we should ask about suspend/resume
> > > > > debug features when SOFTWARE_SUSPEND is not enabled.
> > > >
> > > > That's wrong.
> > > >
> > > > I never use SOFTWARE_SUSPEND, and I think the whole concept is
> > > > totally broken.
> > > >
> > > > Sane people use suspend-to-ram, and that's when you need the suspend
> > > > and resume debugging.
> > >
> > > Here I am wishing I had the _opportunity_ to be sane.  With my ATI
> > > X850 AGP card, I have no choices except swsusp or reboot.
> >
> > You make it sound like suspend-to-ram is dependent on a correct display
> > adapter to work; it doesn't even work on a machine without a display
> > adapter.
> >
> > see http://bugzilla.kernel.org/show_bug.cgi?id=7037
>
> Well, on 'normal' machines, video card is the most common problem.

Ok, but it's normally well understood that when debugging, you should try to 
reduce the number of elements to a bare minimum for the problem to surface.

Are you saying that the ACPI STR spec requires a display-card to be attached?

If not, then all efforts should go into fixing STR with a bare minimum 
.config without even a display adapter.


Thanks!

--
Al