Am 24.07.2014 16:35, schrieb poma:
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c?h=linux-3.14.y#n195static void nouveau_therm_fan_set_defaults(struct nouveau_therm *therm) { struct nouveau_therm_priv *priv = (void *)therm; priv->fan->bios.pwm_freq = 0; priv->fan->bios.min_duty = 0; priv->fan->bios.max_duty = 100; priv->fan->bios.bump_period = 500; priv->fan->bios.slow_down_period = 2000; /*XXX: talk to mupuf */ #if 0 priv->fan->bios.linear_min_temp = 40; priv->fan->bios.linear_max_temp = 85; #endif } https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c?h=linux-3.15.y#n195 static void nouveau_therm_fan_set_defaults(struct nouveau_therm *therm) { struct nouveau_therm_priv *priv = (void *)therm; priv->fan->bios.pwm_freq = 0; priv->fan->bios.min_duty = 0; priv->fan->bios.max_duty = 100; priv->fan->bios.bump_period = 500; priv->fan->bios.slow_down_period = 2000; priv->fan->bios.linear_min_temp = 40; priv->fan->bios.linear_max_temp = 85; } "drm/nouveau/therm: let the vbios decide on the automatic fan management mode" https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c?h=linux-3.15.y&id=0e994d6 This should fix automatic fan management on fermi cards who do not have 0x46 entries in the thermal table. On my nve6, the blob sets the default linear range from 40°C to 100°C but my nvcf's default values are 40°C to 85°C. Let's keep 85 as a default for everyone. Here refers to NVCF, your is NV108 (GK208) i.e. GeForce GT 630 http://nouveau.freedesktop.org/wiki/CodeNames/ The fan is really LOUD all the time. How do I make it more quiet? http://nouveau.freedesktop.org/wiki/FAQ/#index25h3 ... In the mean time, if you are interested, you can read PowerManagement and/or contact mupuf on the #nouveau freenode IRC channel.Fan at full speed on Dell T1650 https://bugzilla.redhat.com/show_bug.cgi?id=1121331 [NVCF] PWM fan speed too high https://bugs.freedesktop.org/show_bug.cgi?id=80901 [Nouveau] hwmon: question about the sysfs interface http://lists.freedesktop.org/archives/nouveau/2014-July/018012.html nouveau funky fan club
Thank you, Mr. Fantomas, for your thorough analysis, which gave some insight even to me! But I can refrain from trying a kernel recompile which I last did a decade or so ago (although, as far as I can remember, this is not such a kind of rocket science as one might guess from the recent thread on "new kernel & rebooting").
So I'll wait until a clever patch finds its way into the (Fedora-)kernel. Meanwhile I stick to the 3.14-kernel.
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