Cannot set fan speed below 55% on 295.40 drivers. Previously worked.

[crushcardinale]

With the previous drivers I was able to lower the fan speed of my GPU to 20%. Now I can only set it to 55% (the default speed after X is started) or higher. None of the following methods work:

a) Setting the fan speed in the nvidia-settings GUI. Any value I try below 55%, it just sets back to 55%.

b)

nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=20"

Output:

  Attribute 'GPUFanControlState' (NightFury:0[gpu:0]) assigned value 1.

  Attribute 'GPUCurrentFanSpeed' (NightFury:0[fan:0]) assigned value 20.

But the fan speed remains the same if I try to set it below 55% (I can hear it so and I can check it in the nvidia-settings GUI).

c) "nvclock -f -F 20" previously worked, but now I get a segmentation fault. I know nvclock isn't something officially supported, but I thought you should know anyway.

I want to mention that the GPU temperature is not an issue. Previously with 20% fan speed it would stay around 55C. Now it's at 47C.

I have attached the output from nvidia-bug-report.sh

[jcdole]

Same problem.

see : http://www.nvnews.net/vbulletin/newr...reply&t=179766


/usr/bin/nvidia-settings -t --query GPUCoreTemp is working
/usr/bin/nvidia-settings -t --query GPUCoreTemp is working
but
nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=20" is not working.

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 295.49  (buildmeister@swio-display-x86-rhel47-07.nvidia.com)  Tue May  1 00:54:24 PDT 2012

########################################################
#											#
#											#
#	/etc/X11/Xorg.conf							#
#											#
#											#
########################################################
#
# Configuration manuelle
#
########################################################
# RPM Fusion - nvidia-xorg.conf
#

Section "ServerLayout"
    Identifier     "Default Layout"
    Screen         "Default Screen" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "keyboard"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 6800 GS"
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "Videocard0"
# initial    Option         "Coolbits" "4"
    Option         "Coolbits" "5"
    SubSection     "Display"
        Modes      "nvidia-auto-select"
    EndSubSection
EndSection

Have to return to 295.33 until nvidfia-settings would set fan speed.

[jcdole]

Found on internet that to set also /etc/X11/xorg.conf.d/50-device.conf

Now the command is accepted.

linux:/local/zypper_install # nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=80"

  Attribute 'GPUFanControlState' (linux-srv:0[gpu:0]) assigned value 1.

  Attribute 'GPUCurrentFanSpeed' (linux-srv:0[fan:0]) assigned value 80.
linux:/local/zypper_install # 

linux:/local/zypper_install # /usr/bin/nvidia-settings -t --query [fan:0]/GPUCurrentFanSpeed 
80
linux:/local/zypper_install #

I continue to digg to see if I can remove /etc/X11/xorg.conf and keep only /etc/X11/xorg.conf.d/50-device.conf.

[jcdole]

/etc/X11/xorg.conf.d/50-device.conf have to be modified.

Section "Device"
#		Identifier "Default Device"
    Identifier  "Video Card"

#		Driver "radeon"
    Driver    "nvidia"

  ## Required magic for radeon/radeonhd drivers; output name
  ## (here: "DVI-0") can be figured out via 'xrandr -q'
  #Option "monitor-DVI-0" "Default Monitor"

    Option    "Coolbits" "5"

EndSection

Have removed /etc/X11/xorg.conf.

Command are accepted :

linux-srv:/local/zypper_install # /usr/bin/nvidia-settings -t --query [fan:0]/GPUCurrentFanSpeed 
53

linux-srv:/local/zypper_install # nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=90"

  Attribute 'GPUFanControlState' (linux-srv:0[gpu:0]) assigned value 1.

  Attribute 'GPUCurrentFanSpeed' (linux-srv:0[fan:0]) assigned value 90.

linux-srv:/local/zypper_install # /usr/bin/nvidia-settings -t --query [fan:0]/GPUCurrentFanSpeed 
90

linux-srv:/local/zypper_install # nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=30"

  Attribute 'GPUFanControlState' (linux-srv:0[gpu:0]) assigned value 1.

  Attribute 'GPUCurrentFanSpeed' (linux-srv:0[fan:0]) assigned value 30.

linux-srv:/local/zypper_install # /usr/bin/nvidia-settings -t --query [fan:0]/GPUCurrentFanSpeed 
30

[crushcardinale]

@jcdole

I did what you said - remove xorg.conf and create /etc/X11/xorg.conf.d/50-device.conf - but it still doesn't work. I can't get the fan speed below 55%. I even tried with the latest drivers - 302.17.

Any other ideas?