2007-09-03 12:36:32

by Jeff Chua

Subject: Re: [2/4] 2.6.23-rc5: known regressions

On 9/3/07, Michal Piotrowski <[email protected]> wrote:

> Subject : console is messed up after resume from s2ram or switching to console from X
> References : http://lkml.org/lkml/2007/8/4/6
> Last known good : ?
> Submitter : Jeff Chua <[email protected]>
> Caused-By : ?
> Handled-By : H. Peter Anvin <[email protected]>
> Antonino A. Daplas <[email protected]>
> Workaround : "s2ram --force --acpi_sleep 1 --vbe_mode"
> Status : problem is being debugged

Michal,

Can you please close this case. I'm using the workaround and satisfied with it.

Thanks,
Jeff.

2007-09-03 12:51:14

by Andrew Morton

Subject: Re: [2/4] 2.6.23-rc5: known regressions

> On Mon, 3 Sep 2007 20:36:32 +0800 "Jeff Chua" <[email protected]> wrote:
> On 9/3/07, Michal Piotrowski <[email protected]> wrote:
>
> > Subject : console is messed up after resume from s2ram or switching to console from X
> > References : http://lkml.org/lkml/2007/8/4/6
> > Last known good : ?
> > Submitter : Jeff Chua <[email protected]>
> > Caused-By : ?
> > Handled-By : H. Peter Anvin <[email protected]>
> > Antonino A. Daplas <[email protected]>
> > Workaround : "s2ram --force --acpi_sleep 1 --vbe_mode"
> > Status : problem is being debugged
>
> Michal,
>
> Can you please close this case. I'm using the workaround and satisfied with it.
>

2.6.21 was OK, and 2.6.23-rc2 needed a manual workaround?

That's a regression.

2007-09-03 13:08:16

by H. Peter Anvin

Subject: Re: [2/4] 2.6.23-rc5: known regressions

Andrew Morton wrote:
>> On Mon, 3 Sep 2007 20:36:32 +0800 "Jeff Chua" <[email protected]> wrote:
>> On 9/3/07, Michal Piotrowski <[email protected]> wrote:
>>
>>> Subject : console is messed up after resume from s2ram or switching to console from X
>>> References : http://lkml.org/lkml/2007/8/4/6
>>> Last known good : ?
>>> Submitter : Jeff Chua <[email protected]>
>>> Caused-By : ?
>>> Handled-By : H. Peter Anvin <[email protected]>
>>> Antonino A. Daplas <[email protected]>
>>> Workaround : "s2ram --force --acpi_sleep 1 --vbe_mode"
>>> Status : problem is being debugged
>> Michal,
>>
>> Can you please close this case. I'm using the workaround and satisfied with it.
>
> 2.6.21 was OK, and 2.6.23-rc2 needed a manual workaround?
>
> That's a regression.

Yes, it is. 2.6.21 was OK, but only within a narrow and
ill-characterized set of conditions (framebuffer not compiled into the
kernel, in particular.) It appears to me that the interaction between
STR and video on this system is extremely fragile, to the point that any
minor perturbations in the state can break it, and that that is the real
underlying problem here.

-hpa