linux-kernel - Re: Any SYSRQ key to force mode switch to console mode when using KMS?

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Date:	Thu, 23 Sep 2010 11:51:22 +0200
From:	Uwe Bonnes <bon@...ktron.ikp.physik.tu-darmstadt.de>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Any SYSRQ key to force mode switch to console mode when using
 KMS?

>>>>> "Randy" == Randy Dunlap <randy.dunlap@...cle.com> writes:

    Randy> On 09/22/10 02:44, Uwe Bonnes wrote:
    >> >> is there any SYSRQ key that forces the video system to console
    >> mode, >> especially when using KMS and allows to work on.
    >> 
    Randy> sysrq-v help message says:
    >>
    Randy> force-fb(V) = "Restore framebuffer console"
    >>  How is that documented outside the sysrq itself?
    >> 
    >> /usr/src/linux-2.6.36-rc4-19/Documentation/sysrq.txt:
    >> 
    >> 'v' - Dumps Voyager SMP processor info to your console

    Randy> Yes, I noticed that and I posted a patch for it yesterday.

Thanks for caring!

However 2.6.36-rc4 also fixed my hibernate problem:

commit 84e1d836ef0759a152578a961894824bde89596f
Merge: 20f4cad 6715045
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Sat Sep 11 15:50:53 2010 -0700

    Merge branch 'pm-fixes' of
    git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
    
    * 'pm-fixes' of
      ...
      PM / Hibernate: Avoid hitting OOM during preallocation of memory
      ...

so I no longer hit the problem with the dark screen...

Bye
-- 
Uwe Bonnes                bon@...ktron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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