更改显卡驱动程序后,它检测不到第二个 HDMI 显示器,而且我无法更改亮度

更改显卡驱动程序后,它检测不到第二个 HDMI 显示器,而且我无法更改亮度

更改图形驱动程序后,它无法检测到第二个 HDMI 显示器,并且我无法更改亮度。

你好。我的操作系统是Ubuntu 20.04。我的显卡是 GTX 1660ti 移动版和 HP OMEN 笔记本电脑。我需要将显卡驱动程序从开源 X.org X 服务器更改为 Nvidia 470,以获得更好的性能,偶尔会出现系统崩溃,并且 Gazebo 程序中的纹理单元无法正常工作。

更换显卡驱动程序后,我的第二台显示器和亮度设置停止工作。从 470 改回开源后,一切都像以前一样工作。而且,nvidia-settings不起作用。“错误:未加载 NVIDIA 驱动程序”

我尝试过更换其他显卡驱动程序,比如 515、510,但没什么用。我还关闭了安全启动,尝试了ubuntu- autoinstall、、prime-selectlightdm、更新内核以及我在互联网上找到的许多其他方法,但都没什么用。

因此,我想向您寻求建议,我将不胜感激。

谢谢你的每一个回答。

xrandr:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00* 

Nvidia 错误报告

lshw-c 视频:

  *-display UNCLAIMED       
   description: VGA compatible controller
   product: TU116M [GeForce GTX 1660 Ti Mobile]
   vendor: NVIDIA Corporation
   physical id: 0
   bus info: pci@0000:01:00.0
   version: a1
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress vga_controller cap_list
   configuration: latency=0
   resources: memory:bb000000-bbffffff memory:90000000-9fffffff memory:a0000000-a1ffffff ioport:4000(size=128) memory:c0000-dffff

dmesg |grep -i nvidia:

[    1.134452] nvidia-gpu 0000:01:00.3: enabling device (0000 -> 0002)
[    3.987994] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input14
[    3.988061] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15
[    3.988105] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16
[    3.988144] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17
[    3.988182] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18
[    3.988222] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19
[    4.510072] nvidia-gpu 0000:01:00.3: i2c timeout error e0000000
[   12.926918] audit: type=1400 audit(1662012991.674:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=3139 comm="apparmor_parser"
[   12.926922] audit: type=1400 audit(1662012991.674:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=3139 comm="apparmor_parser"

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