From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: I have some problems with acpi on my laptops: Date: Fri, 30 Sep 2011 02:58:25 +0100 Message-ID: <20110930015825.GA6359@srcf.ucam.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:54953 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753297Ab1I3B63 (ORCPT ); Thu, 29 Sep 2011 21:58:29 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Silvio Caggia Cc: linux-acpi@vger.kernel.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