From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu LESNIAK Subject: Re: ACPI issues - suspend-to-ram and processor speed Date: Thu, 20 May 2004 11:17:27 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <40AC77A7.10704@eskuel.net> References: <200405180213.34603.andre@eisenbach.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <200405180213.34603.andre-+hZUvIEKc2q1Z/+hSey0Gg@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Andre Eisenbach Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hello, I confirm what Andre have said : I've got a Presario 2118EA (quite same=20 model with AMD Athlon XP1800). Suspend to ram hav never worked for me.=20 It suspends but cannot resume (2 seconds after the wake up, the laptop=20 shuts down) I suspected acpid to catch the power button press and tell the laptop to=20 shut down, but after disabling it, no more luck... Regarding the CPU slowdown, I've seen similar behaviour under Windows. I=20 think it's related to the laptop itself, maybe as Pavel Machek said on=20 LKML, it's the lack of power that force the laptop to run in this mode. Mathieu LESNIAK Andre Eisenbach wrote: > Dear ACPI devel team, >=20 > I have two issues which prevent me from fully enjoying my notbook runni= ng on > Linux. Both are seemingly related to ACPI. Please help me understand th= e > problems better and maybe fix them or help me attempting a fix. >=20 > The notebook in question is a Compaq Presario 2100Z with an AMD Athlon = XP > 2400+ processor. Current kernel version is 2.6.6-mm2. I am not applying= any > ACPI patches from sf.net, but rely on whats in the kernel (which may be= my > first mistake). >=20 > I am very willing to learn and may be able to fix it myself, if you guy= s can > help me find out more about which components are involved. >=20 > Problem 1 - Cannot suspend (or resume better) >=20 > Right now I am unable to suspend my notebook in any for or fashion (ram= , disk, > etc.). Therefore I have to turn off the notebook and boot again, which > honestly makes the notebook pretty useless. >=20 > When I try to suspend to RAM, the suspend part seems to run fine (I can= see > suspend-to-ram messages), the lcd shuts off and the power button starts > pulsing slowly (indicating standby). So far so good. However, if I hit = the > power button then to resume, the device seems to want to wake up (hd sp= ins > up, fans start) but the LCD never turns on and the notebook quickly (1-= 2 > seconds) later switched to off (all quiet/lights off). Hitting the powe= r > button again starts a normal startup. >=20 > I also tried to suspend to disk using swsusp. That corrupted my swap pa= rtition > and didn't resume. >=20 > What does it take to suspend to RAM? > What could be broken, and where should I start looking if I want to fix= it? > What more debug information do you guys need? >=20 > Problem 2 - CPU slows down when on battery >=20 > When the power cord is unplugged, my CPU slows down quite a bit. This i= s not > indicated in /proc/cpuinfo and NOT due to cpufreq / powernow adjustment= s. >=20 > The problem does not seem to occur with ACPI=3DOFF >=20 > More details here in a post to the linux-kernel mailing list: > http://lkml.org/lkml/2004/5/9/100 >=20 > Also a relevant and informative entry here: > http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=3D= 467655 >=20 > When on battery, KDE is barely usable. Once again it doesnt make much s= ense > for a laptop not to be usable on battery ... :( >=20 >=20 > Thanks for your attention and hopefully for your answers/comments. I ca= n > provide as much debug/info/configs as you would like and as a programme= r am > willing to help out/read up, if you just help me identify where to star= t. >=20 > Thanks, > Andr=E9 Eisenbach ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id%62&alloc_ida84&op=3Dclick _______________________________________________ Acpi-devel mailing list Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org https://lists.sourceforge.net/lists/listinfo/acpi-devel ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click