From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 79820] New: Strange readout on fan1_input when pwm1_min < 33 Date: Mon, 09 Jun 2014 08:35:18 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1414907772==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1414907772== Content-Type: multipart/alternative; boundary="1402302918.5Ca0F3cD1.3698"; charset="us-ascii" --1402302918.5Ca0F3cD1.3698 Date: Mon, 9 Jun 2014 08:35:18 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable https://bugs.freedesktop.org/show_bug.cgi?id=3D79820 Priority: medium Bug ID: 79820 Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Summary: Strange readout on fan1_input when pwm1_min < 33 QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org Severity: normal Classification: Unclassified OS: Linux (All) Reporter: freedesk.apriori-w1QkCcy0X+BxKfgMtfWJuA@public.gmane.org Hardware: x86-64 (AMD64) Status: NEW Version: unspecified Component: Driver/nouveau Product: xorg Created attachment 100705 --> https://bugs.freedesktop.org/attachment.cgi?id=3D100705&action=3Dedit jountalctl -b -k|grep nouveau When running the drivers from kernel 3.15.0, pwm1_min seems to default to 3= 5. I noticed that this yields reported ~2k RPM in fan1_input for my card. Since = the fan runs at ~1k RPM in idle when running the NVIDIA blob, I tried lowering pwm1_min and noticed odd results. Lowering pwm1_min to 32 is fine and gives me a readout of ~1.8k RPM. Howeve= r, after that, I see weird output values: 31 ~ 4.5k 30 ~ 9k 29 ~ 5k 28 ~ 22k (sic) 27 ~ 75k (sic) 26 ~ 400k (sic) At no time was my computer lifting up from the ground though, and even with= the reported 4.5k it seems that the fan did not actually speed up. Additional background: It seems my fan is only supported as of Linux 3.15.0. Before that, the fan ran at 100% and dmesg showed =C2=ABFAN control: none / external=C2=BB. On IRC I was informed that a new fan has been added to 3.15= , and indeed it seems to be recognized now (many thanks for that!). I=E2=80=99m attaching my dmesg and my vbios in case it helps. Note though t= hat nvagetbios reported a warning when dumping the BIOS: > No extraction method specified (using -s extraction_method). Defaulting t= o PRAMIN. > Attempt to extract the vbios from card 0 (nve6) using PRAMIN > Invalid signature(0x55aa). You may want to try another retrieval method. Let me know if there=E2=80=99s additional information I could supply. --=20 You are receiving this mail because: You are the assignee for the bug. --1402302918.5Ca0F3cD1.3698 Date: Mon, 9 Jun 2014 08:35:18 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Priority medium
Bug ID 79820
Assignee nouveau@lists.freedesktop.org
Summary Strange readout on fan1_input when pwm1_min < 33
QA Contact xorg-team@lists.x.org
Severity normal
Classification Unclassified
OS Linux (All)
Reporter freedesk.apriori@spamgourmet.com
Hardware x86-64 (AMD64)
Status NEW
Version unspecified
Component Driver/nouveau
Product xorg 

Created attachment=
 100705 [details]
jountalctl -b -k|grep nouveau

When running the drivers from kernel 3.15.0, pwm1_min seems to default to 3=
5. I
noticed that this yields reported ~2k RPM in fan1_input for my card. Since =
the
fan runs at ~1k RPM in idle when running the NVIDIA blob, I tried lowering
pwm1_min and noticed odd results.

Lowering pwm1_min to 32 is fine and gives me a readout of ~1.8k RPM. Howeve=
r,
after that, I see weird output values:

31 ~ 4.5k
30 ~ 9k
29 ~ 5k
28 ~ 22k (sic)
27 ~ 75k (sic)
26 ~ 400k (sic)

At no time was my computer lifting up from the ground though, and even with=
 the
reported 4.5k it seems that the fan did not actually speed up.

Additional background: It seems my fan is only supported as of Linux 3.15.0.
Before that, the fan ran at 100% and dmesg showed =C2=ABFAN control: none /
external=C2=BB. On IRC I was informed that a new fan has been added to 3.15=
, and
indeed it seems to be recognized now (many thanks for that!).

I=E2=80=99m attaching my dmesg and my vbios in case it helps. Note though t=
hat
nvagetbios reported a warning when dumping the BIOS:

> No extraction method specified (using -s extract=
ion_method). Defaulting to PRAMIN.
> Attempt to extract the vbios from card 0 (nve6) using PRAMIN
> Invalid signature(0x55aa). You may want to try another retrieval metho=
d.

Let me know if there=E2=80=99s additional information I could supply.

You are receiving this mail because: =20=20=20=20=20=20
  • You are the assignee for the bug.
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