From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [Bugme-new] [Bug 9155] New: No fan control with ATI Radeon display support on HP nx6125. Date: Mon, 15 Oct 2007 22:32:34 +0200 Message-ID: <200710152232.35324.rjw@sisk.pl> References: <200710142155.09345.rjw@sisk.pl> <1192468342.6249.9.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1192468342.6249.9.camel@localhost> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: Cc: Andrew Morton , linux-acpi@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, Benjamin Herrenschmidt , bugme-daemon@bugzilla.kernel.org, Len Brown On Monday, 15 October 2007 19:12, Daniel W=C3=BCrfel wrote: > Am Sonntag, den 14.10.2007, 21:55 +0200 schrieb Rafael J. Wysocki: > > On Sunday, 14 October 2007 16:18, Daniel W=C3=BCrfel wrote: > > > Am Sonntag, den 14.10.2007, 16:02 +0200 schrieb Rafael J. Wysocki= : > > > > On Sunday, 14 October 2007 09:26, Daniel W=C3=BCrfel wrote: > > > > > Hi there, > > > > >=20 > > > > > at first great respect for your fast answers.=20 > > > > > I don't think, that the binary ati driver is the problem, bec= ause: > > > > > 1. with switched of "ati radeon display support" in the kerne= l, the fan > > > > > control works correctly (and i still using the ati-driver) > > > >=20 > > > > How do you know, however, that the "ati radeon display support"= in the kernel > > > > does not interfere with the ATI driver in a destructive way? > > >=20 > > > I think, but im not sure, that the ati driver is loaded, if X was > > > started. But at this moment X was not started. > >=20 > > Well, the kernel module part is probably loaded earlier. > > =20 > > > > > 2. the fan starts spinning at the boot screen even if the rad= eon display > > > > > driver was loaded (and the ati driver is not just loaded yet)= =2E > > > >=20 > > > > I'm not sure what you mean exactly. Can you clarify, please?da= nn > > >=20 > > > Well, i see it looks a little bit confused what i wrote. What i m= ean is, > > > that the fan at this time starts to rotate, when the "radeon disp= lay > > > support" is loaded at boot time. > >=20 > > I see. > >=20 > > Can you please check: > > - What happens if you don't use the ATI driver at all (please unloa= d its kernel > > module before loading the kernel's radeon one)? > > - Does the loading of the radeon module trigger the fan automatical= ly? > > - What happens if the fan module is not loaded at that time? >=20 > I think i got the problem: > I made some test. The problem is the module radeonfb. If i compile > radeonfb as a module there is no problem with the fan control. But if= i > compile it into the kernel, than fan control will be destroyed and th= e > fan doesn't stop working from the beginning of the system start.=20 > The other modules (fglrx, agp_gart) have no influence to the fan > behaviour. Thanks for having narrowed this, good job. Now, the question is why the radeonfb compiled in statically has this e= ffect. Can you please attach your current .config to the bugzilla entry? - To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html