Ubuntu 设置 GPU 风扇速度
查看所有风扇相关设置
sh
DISPLAY=:0 nvidia-settings -q all | grep -i fan输出形如：
sh
Attribute 'GPUFanControlState' (xeon:0[gpu:0]): 1.
'GPUFanControlState' is a boolean attribute; valid values are: 1 (on/true) and 0 (off/false).
'GPUFanControlState' can use the following target types: GPU.
Attribute 'GPUFanControlState' (xeon:0[gpu:1]): 1. [55/4124]
... (同上)
Attributes queryable via xeon:0[fan:0]:
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:0]): 30.
The valid values for 'GPUTargetFanSpeed' are in the range 0 - 100 (inclusive).
'GPUTargetFanSpeed' can use the following target types: Fan.
Attribute 'GPUCurrentFanSpeed' (xeon:0[fan:0]): 30.
The valid values for 'GPUCurrentFanSpeed' are in the range 0 - 100 (inclusive).
'GPUCurrentFanSpeed' is a read-only attribute.
'GPUCurrentFanSpeed' can use the following target types: Fan.
Attribute 'GPUCurrentFanSpeedRPM' (xeon:0[fan:0]): 1998.
'GPUCurrentFanSpeedRPM' is an integer attribute.
'GPUCurrentFanSpeedRPM' is a read-only attribute.
'GPUCurrentFanSpeedRPM' can use the following target types: Fan.
Attribute 'GPUFanControlType' (xeon:0[fan:0]): 2.
'GPUFanControlType' is an integer attribute.
'GPUFanControlType' is a read-only attribute.
'GPUFanControlType' can use the following target types: Fan.
Attribute 'GPUFanTarget' (xeon:0[fan:0]): 0x00000007.
'GPUFanTarget' is a bitmask attribute.
'GPUFanTarget' is a read-only attribute.
'GPUFanTarget' can use the following target types: Fan.
Attributes queryable via xeon:0[fan:1]:
... (同上)
Attributes queryable via xeon:0[fan:2]:
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:2]): 30.
The valid values for 'GPUTargetFanSpeed' are in the range 0 - 100 (inclusive).
'GPUTargetFanSpeed' can use the following target types: Fan.
Attribute 'GPUCurrentFanSpeed' (xeon:0[fan:2]): 0.
The valid values for 'GPUCurrentFanSpeed' are in the range 0 - 100 (inclusive).
'GPUCurrentFanSpeed' is a read-only attribute.
'GPUCurrentFanSpeed' can use the following target types: Fan.
Attribute 'GPUCurrentFanSpeedRPM' (xeon:0[fan:2]): 0.
'GPUCurrentFanSpeedRPM' is an integer attribute.
'GPUCurrentFanSpeedRPM' is a read-only attribute.
'GPUCurrentFanSpeedRPM' can use the following target types: Fan.
Attribute 'GPUFanControlType' (xeon:0[fan:2]): 2.
'GPUFanControlType' is an integer attribute.
'GPUFanControlType' is a read-only attribute.
'GPUFanControlType' can use the following target types: Fan.
Attribute 'GPUFanTarget' (xeon:0[fan:2]): 0x00000007.
'GPUFanTarget' is a bitmask attribute.
'GPUFanTarget' is a read-only attribute.
'GPUFanTarget' can use the following target types: Fan.
Attributes queryable via xeon:0[fan:3]:
... (同上)查看风扇信息
sh
DISPLAY=:0 nvidia-settings -q fans输出形如：
sh
4 Fans on xeon:0
[0] xeon:0[fan:0] (Fan 0)
Has the following name:
FAN-0
[1] xeon:0[fan:1] (Fan 1)
Has the following name:
FAN-1
[2] xeon:0[fan:2] (Fan 2)
Has the following name:
FAN-2
[3] xeon:0[fan:3] (Fan 3)
Has the following name:
FAN-3查看 GPU 风扇控制状态
sh
DISPLAY=:0 nvidia-settings -q GPUFanControlState输出形如：
sh
Attribute 'GPUFanControlState' (xeon:0[gpu:0]): 0.
'GPUFanControlState' is a boolean attribute; valid values are: 1 (on/true) and 0 (off/false).
'GPUFanControlState' can use the following target types: GPU.
Attribute 'GPUFanControlState' (xeon:0[gpu:1]): 0.
'GPUFanControlState' is a boolean attribute; valid values are: 1 (on/true) and 0 (off/false).
'GPUFanControlState' can use the following target types: GPU.- 这里两张 GPU 都是
0，表示风扇控制未开启
设置 GPU 风扇控制状态
sh
DISPLAY=:0 nvidia-settings -a '[gpu:0]/GPUFanControlState=1'
DISPLAY=:0 nvidia-settings -a '[gpu:1]/GPUFanControlState=1'输出形如：
sh
Attribute 'GPUFanControlState' (xeon:0[gpu:0]) assigned value 1.
Attribute 'GPUFanControlState' (xeon:0[gpu:1]) assigned value 1.查看修改是否成功：
sh
DISPLAY=:0 nvidia-settings -q GPUFanControlState输出形如：
sh
Attribute 'GPUFanControlState' (xeon:0[gpu:0]): 1.
'GPUFanControlState' is a boolean attribute; valid values are: 1 (on/true) and 0 (off/false).
'GPUFanControlState' can use the following target types: GPU.
Attribute 'GPUFanControlState' (xeon:0[gpu:1]): 1.
'GPUFanControlState' is a boolean attribute; valid values are: 1 (on/true) and 0 (off/false).
'GPUFanControlState' can use the following target types: GPU.- 可以看到两张 GPU 都是
1，表示风扇控制已开启
查看风扇当前速度
sh
DISPLAY=:0 nvidia-settings -q '[fan:0]/GPUCurrentFanSpeed'
DISPLAY=:0 nvidia-settings -q '[fan:2]/GPUCurrentFanSpeed'输出形如：
sh
Attribute 'GPUCurrentFanSpeed' (xeon:0[fan:0]): 30.
The valid values for 'GPUCurrentFanSpeed' are in the range 0 - 100 (inclusive).
'GPUCurrentFanSpeed' is a read-only attribute.
'GPUCurrentFanSpeed' can use the following target types: Fan.
Attribute 'GPUCurrentFanSpeed' (xeon:0[fan:2]): 0.
The valid values for 'GPUCurrentFanSpeed' are in the range 0 - 100 (inclusive).
'GPUCurrentFanSpeed' is a read-only attribute.
'GPUCurrentFanSpeed' can use the following target types: Fan.- 第一张 GPU 风扇（fan:0/1）转速为 30%
- 第二张 GPU 风扇（fan:2/3）转速为 0%（未转动）
设置风扇目标速度
sh
DISPLAY=:0 nvidia-settings -a '[fan:0]/GPUTargetFanSpeed=35'
DISPLAY=:0 nvidia-settings -a '[fan:1]/GPUTargetFanSpeed=35'
DISPLAY=:0 nvidia-settings -a '[fan:2]/GPUTargetFanSpeed=30'
DISPLAY=:0 nvidia-settings -a '[fan:3]/GPUTargetFanSpeed=30'输出形如：
sh
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:0]) assigned value 35.
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:1]) assigned value 35.
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:2]) assigned value 30.
Attribute 'GPUTargetFanSpeed' (xeon:0[fan:3]) assigned value 30.查看修改是否成功：
sh
DISPLAY=:0 nvidia-settings -q '[fan:0]/GPUTargetFanSpeed'
DISPLAY=:0 nvidia-settings -q '[fan:2]/GPUTargetFanSpeed'或者直接查看显卡信息：
sh
nvidia-smi常见问题1：无法修改部分属性
drivers - Unable to Control NVIDIA Fan Speed - Ask Ubuntu
https://askubuntu.com/questions/1411667/unable-to-control-nvidia-fan-speed
修改 Xwrapper.config
sh
sudo nano /etc/X11/Xwrapper.config在 allowed_users=console 上面一行添加 needs_root_rights=yes：
sh
# Xwrapper.config (Debian X Window System server wrapper configuration file)
#
# This file was generated by the post-installation script of the
# xserver-xorg-legacy package using values from the debconf database.
#
# See the Xwrapper.config(5) manual page for more information.
#
# This file is automatically updated on upgrades of the xserver-xorg-legacy
# package *only* if it has not been modified since the last upgrade of that
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command as root:
# dpkg-reconfigure xserver-xorg-legacy
needs_root_rights=yes
allowed_users=console重启 X server
可以直接重启服务器，sudo reboot。不过也可以试试单独重启 X server。
查看 X server 服务状态：
sh
sudo systemctl status display-manager输出形如：
sh
● gdm.service - GNOME Display Manager
Loaded: loaded (/lib/systemd/system/gdm.service; static)
Active: active (running) since Tue 2025-08-26 08:09:03 CST; 36min ago
Process: 4273 ExecStartPre=/usr/share/gdm/generate-config (code=exited, status=0/SUCCESS)
Main PID: 4294 (gdm3)
Tasks: 3 (limit: 629145)
Memory: 123.7M
CPU: 4.061s
CGroup: /system.slice/gdm.service
└─4294 /usr/sbin/gdm3
8月 26 08:09:02 xeon systemd[1]: Starting GNOME Display Manager...
8月 26 08:09:03 xeon systemd[1]: Started GNOME Display Manager.
8月 26 08:09:04 xeon gdm-autologin][4302]: gkr-pam: no password is available for user
8月 26 08:09:04 xeon gdm-autologin][4302]: pam_unix(gdm-autologin:session): session opened for user asimov(uid=1000) by (uid=0)
8月 26 08:09:04 xeon gdm-autologin][4302]: gkr-pam: gnome-keyring-daemon started properly- 可以看到，X server 使用的是
gdm3。
重启 X server：
sh
sudo systemctl restart gdm3常见问题2：4090设置风扇速度有效，3080设置无效
GPT5 说有可能是部分显卡有零转速模式（Zero RPM Mode），在低温时风扇会自动停转。
待解决。