On Friday 05 of September 2014, Zhang Rui wrote: > On Fri, 2014-09-05 at 07:03 +0200, Arkadiusz Miskiewicz wrote: > > On Friday 05 of September 2014, Zhang Rui wrote: > > > On Thu, 2014-09-04 at 21:21 +0200, Rafael J. Wysocki wrote: > > > > On Thursday, September 04, 2014 06:40:04 PM Arkadiusz Miskiewicz wrote: > > > > > Hi. > > > > > > > > > > I'm using 3.17.0-rc3-00002-g7505cea kernel on Dell XPS 15 machine: > > > > > DMI: Dell Inc. XPS 15 9530/XPS 15 9530, BIOS A06 07/16/2014 > > > > > (this is latest bios) > > > > > > > > > > After loading thermal acpi driver I get: > > > > > > > > > > [54136.633643] ACPI: Invalid active2 threshold > > > > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > this is a BIOS bug. _AC2 is defined while _AL2 is not, thus this is an > invalid active trip point. > But it won't hurt IMO, because there are two ACPI Fan devices, and they > are both used (for active trip point 0 and 1) in the ACPI thermal > management in your laptop. > > > > > > [54136.633761] thermal LNXTHERM:00: registered as thermal_zone6 > > > > > [54136.633763] ACPI: Thermal Zone [TZ00] (28 C) > > > > > [54136.634009] thermal LNXTHERM:01: registered as thermal_zone7 > > > > > [54136.634011] ACPI: Thermal Zone [TZ01] (-266 C) > > This is more serious to me. > can you please file a bug at > https://bugzilla.kernel.org/enter_bug.cgi?product=ACPI > and attach your acpidump output there. Done https://bugzilla.kernel.org/show_bug.cgi?id=83921 > > thanks, > rui > > > > > > I assume bios is buggy (right?) > > > > > > > > Well, we don't seem to like the value for some reason. Also the -266 > > > > C for TZ01 looks suspicious. > > > > > > > > > What problems can happen to this machine due to this problem? It is > > > > > quite hot frequently, so I wonder if there is some thermal > > > > > management problem with it. > > > > > > > > I'm leaving this question to Rui. > > > > > > It looks like ACPI thermal driver fails to parse _AC2 control methods. > > > please attach the acpidump output. -- Arkadiusz Miśkiewicz, arekm / maven.pl Q: vger.kernel.org postmasters - always rude and impolite, hmm? -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
