<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [NVCF] PWM fan speed too high" href="https://bugs.freedesktop.org/show_bug.cgi?id=80901#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [NVCF] PWM fan speed too high" href="https://bugs.freedesktop.org/show_bug.cgi?id=80901">bug 80901</a> from <a class="email" href="mailto:lars@homer.se" title="Lars E Pettersson <lars@homer.se>"> Lars E Pettersson</a> <pre>I am the original poster of the Fedora bug report mentioned by K.-P. Schrage, <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1121331">https://bugzilla.redhat.com/show_bug.cgi?id=1121331</a> I have the exact same problem as the original poster of this bug report, but using another graphical card. I.e. the fan on the card works nice using kernels below 3.15, but all kernels from 3.15 and up will peg the fan. Reverting the commit mentioned by K.-P. Schrage, <a href="http://lists.freedesktop.org/archives/nouveau/2014-March/016589.html">http://lists.freedesktop.org/archives/nouveau/2014-March/016589.html</a> solves the issue for me. The fan returns to how it behaved before kernel 3.15. I am using a Nvidia GF106GL (Quadro 2000) card, lspci: 01:00.0 VGA compatible controller: NVIDIA Corporation GF106GL [Quadro 2000] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 084a Flags: bus master, fast devsel, latency 0, IRQ 30 Memory at f0000000 (32-bit, non-prefetchable) [size=32M] Memory at e0000000 (64-bit, prefetchable) [size=128M] Memory at e8000000 (64-bit, prefetchable) [size=64M] I/O ports at e000 [size=128] Expansion ROM at f2000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information: Len=14 <?> Capabilities: [100] Virtual Channel Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?> Kernel driver in use: nouveau Kernel modules: nouveau At the moment I am using the following kernel Linux tux 3.17.7-300.fc21.x86_64 #1 SMP Wed Dec 17 03:08:44 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux vbios.rom will follow...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>