From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Silvio Caggia <silvio.caggia@tiscali.it>
Cc: linux-acpi@vger.kernel.org
Subject: Re: I have some problems with acpi on my laptops:
Date: Fri, 30 Sep 2011 02:58:25 +0100 [thread overview]
Message-ID: <20110930015825.GA6359@srcf.ucam.org> (raw)
In-Reply-To: <loom.20110930T000656-380@post.gmane.org>
On Thu, Sep 29, 2011 at 10:13:59PM +0000, Silvio Caggia wrote:
> if I run acpitool -s it suspends correctly, but when I press power on all
> the laptop awakes except video display.
> So the screen is black, if I press caps-lock the led works, if I press
> ctrl-alt-F1 and then ctrl-C I am still able to (blindly) type reboot...
> It seems that the video adapter is not able to awake.
Sounds like a bug with the radeon driver. Are you using kernel
modesetting?
> powersave governor with a fixed 222Mhz speed, so slow that the system is
> not usable.
> the cpu is a Celeron
> note: on the first laptop, a Compaq Evo N800v, driver acpi-cpufreq works
> fine with ondemand governor, driver p4-clockmod have same problems.
> How to activate a working driver with ondemand governor?
Older Celerons didn't support speedstep. There's no way to use ondemand
with them.
--
Matthew Garrett | mjg59@srcf.ucam.org
prev parent reply other threads:[~2011-09-30 1:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-29 22:13 I have some problems with acpi on my laptops: Silvio Caggia
2011-09-30 1:58 ` Matthew Garrett [this message]
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