From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 60704] New: [nouveau, git regression] - I2C PWM fan control broken on nv50 adt7475 on kernels 3.3.x+ Date: Mon, 11 Feb 2013 23:25:30 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0879872138==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0879872138== Content-Type: multipart/alternative; boundary="1360625130.bB0C01.15419"; charset="us-ascii" --1360625130.bB0C01.15419 Date: Mon, 11 Feb 2013 23:25:30 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=60704 Priority: medium Bug ID: 60704 Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Summary: [nouveau, git regression] - I2C PWM fan control broken on nv50 adt7475 on kernels 3.3.x+ QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org Severity: major Classification: Unclassified OS: Linux (All) Reporter: m.meledandri-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Driver/nouveau Product: xorg Created attachment 74657 --> https://bugs.freedesktop.org/attachment.cgi?id=74657&action=edit ic2-bit-banging-nouveau-git-bisect.log When resuming from suspend on affected kernels the lack of fan pwm control causes the GPU fan to run at 100%. This is noisy, annoying and inefficient. After performing a git bisect (attached), I've determined the commit that broke pwm fan control functionality for all kernels 3.3.x+ with adt7475 controller (nv50 GPU in my case): commit f553b79c03f0dbd52f6f03abe8233a2bef8cbd0d Author: Ben Skeggs Date: Wed Dec 21 18:09:12 2011 +1000 drm/nouveau/i2c: handle bit-banging ourselves Along with the many kernels I built and tested during bisection, I've also verified this broke sensors detecting on mainline builds of 3.3.8, 3.4.29, 3.7.3 and the current Nouveau git master. I can verify proper PWM fan control/i2c enumeration on kernel 3.2.35 and 3.2.38. I've not tested earlier kernels than the 3.2 series, but git bisection went back to 3.2-rc1 and was working there. I'm happy to provide any further testing to help expedite getting this patched for stable kernels. I'm particularly interested in the 3.4.x LTS series which is what led me to discover this issue on my system after I strayed from the happy confines of the Debian 3.2.x LTS series kernel. -- You are receiving this mail because: You are the assignee for the bug. --1360625130.bB0C01.15419 Date: Mon, 11 Feb 2013 23:25:30 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Priority medium
Bug ID 60704
Assignee nouveau@lists.freedesktop.org
Summary [nouveau, git regression] - I2C PWM fan control broken on nv50 adt7475 on kernels 3.3.x+
QA Contact xorg-team@lists.x.org
Severity major
Classification Unclassified
OS Linux (All)
Reporter m.meledandri@gmail.com
Hardware x86-64 (AMD64)
Status NEW
Version git
Component Driver/nouveau
Product xorg 

Created attachment 74657 [details]
ic2-bit-banging-nouveau-git-bisect.log

When resuming from suspend on affected kernels the lack of fan pwm control
causes the GPU fan to run at 100%. This is noisy, annoying and inefficient.

After performing a git bisect (attached), I've determined the commit that broke
pwm fan control functionality for all kernels 3.3.x+ with adt7475 controller
(nv50 GPU in my case):

commit f553b79c03f0dbd52f6f03abe8233a2bef8cbd0d
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Wed Dec 21 18:09:12 2011 +1000

drm/nouveau/i2c: handle bit-banging ourselves

Along with the many kernels I built and tested during bisection, I've also
verified this broke sensors detecting on mainline builds of 3.3.8, 3.4.29,
3.7.3 and the current Nouveau git master.

I can verify proper PWM fan control/i2c enumeration on kernel 3.2.35 and
3.2.38. I've not tested earlier kernels than the 3.2 series, but git bisection
went back to 3.2-rc1 and was working there.

I'm happy to provide any further testing to help expedite getting this patched
for stable kernels. I'm particularly interested in the 3.4.x LTS series which
is what led me to discover this issue on my system after I strayed from the
happy confines of the Debian 3.2.x LTS series kernel.

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