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Ubuntu 未检测到连接的显示器

tag-icon • tag-icon multiple-monitors lenovo hdmi
Ubuntu 未检测到连接的显示器

我正在使用联想 IdeaPad Pro 5 14IMH9，配备集成 GPU Intel Arc。Ubuntu 23.10 通过 HDMI 连接

尝试过多次重启并插拔。更新和升级都是最新的。

xrandr 显示

$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 2880 x 1800, current 2880 x 1800, maximum 2880 x 1800
default connected primary 2880x1800+0+0 0mm x 0mm
   2880x1800     91.00*

有人能帮帮我吗？

编辑：

回应xset -q

$ xset -q
Keyboard Control:
  auto repeat:  on    key click percent:  0    LED mask:  00001000
  XKB indicators:
    00: Caps Lock:   off    01: Num Lock:    off    02: Scroll Lock: off
    03: Compose:     off    04: Kana:        off    05: Sleep:       off
    06: Suspend:     off    07: Mute:        off    08: Misc:        off
    09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
    12: Group 2:     on     13: Mouse Keys:  off
  auto repeat delay:  500    repeat rate:  33
  auto repeating keys:  00ffffffdffffbbf
                        fadfffefffedffff
                        9fffffffffffffff
                        fff7ffffffffffff
  bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control:
  acceleration:  2/1    threshold:  4
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  0    cycle:  0
Colors:
  default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path:
  /usr/share/fonts/X11/misc,/usr/share/fonts/X11/Type1,built-ins
DPMS (Energy Star):
  Standby: 0    Suspend: 0    Off: 0
  DPMS is Enabled
  Monitor is On

答案1

如果您的笔记本电脑有额外的 GPU（未集成到处理器中），您应该为其安装驱动程序以使 HDMI 正常工作。

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