From: Ruben Puettmann <ruben@puettmann.net>
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.22 APM problems with IBM Thinkpad's
Date: Wed, 13 Aug 2003 15:31:26 +0200 [thread overview]
Message-ID: <20030813133126.GA26337@puettmann.net> (raw)
In-Reply-To: <16186.14686.455795.927909@gargle.gargle.HOWL>
On Wed, Aug 13, 2003 at 03:13:02PM +0200, Mikael Pettersson wrote:
>
> This sounds like a well-known APM/local-APIC clash.
nice to know ...
>
> Never ever use DISPLAY_BLANK if you also have SMP or UP_APIC.
not nice so ;-( how is it with acpi? Same problem?
> With APIC support enabled (SMP or UP_APIC), APM must be constrained:
> DISPLAY_BLANK off
> CPU_IDLE off
> built-in driver, not module
Why will this not be disabled in make *config so that nobody will run in
this problem?
> This is because the apm driver does BIOS calls, and many BIOSen
> (including the code in graphics cards, e.g. all Radeons it seems)
> like to hang if a local APIC timer interrupt arrives.
Yes radeonfb don't like apm -s on this thinkpad. apm -s works but on
resume it freezed some on
modprobe radeonfb;
sleep 10;
rmmod radeonfb;
sleep 10;
modprobe radeonfb;
and thinkpad freezed .
Ruben
--
Ruben Puettmann
ruben@puettmann.net
http://www.puettmann.net
next prev parent reply other threads:[~2003-08-13 13:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-13 12:31 Ruben Puettmann
2003-08-13 13:13 ` Mikael Pettersson
2003-08-13 13:31 ` Ruben Puettmann [this message]
2003-08-13 14:24 ` Mikael Pettersson
2003-08-13 14:11 ` Alan Cox
2003-08-13 14:32 ` Mikael Pettersson
2003-08-14 12:28 ` Ruben Puettmann
2003-08-14 13:21 ` Mikael Pettersson
2003-08-14 13:47 ` Alan Cox
2003-08-14 17:33 ` Jamie Lokier
2003-08-14 20:03 ` Mikael Pettersson
2003-08-14 21:40 ` Jamie Lokier
[not found] ` <20030813131043.GA1112@deimos.one.pl>
2003-08-13 13:35 ` Ruben Puettmann
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