我有一台第六代联想 X1C，运行 Fedora 32。买了一个不错的外接显示器（G-story）作为第二显示器。
但是，通过 USB-C 连接显示器不起作用。屏幕是黑的，Fedora 无法识别它。（未显示在 lsusb 或 xrandr 中）
一些有趣的观察：
- 监视器未显示在 xrandr 中
- 监视器未显示在 lspci 中
- 当我插入第二个屏幕时确实有一些日志条目。
Feb 20 09:17:55 x1c kernel: usb 1-4: new high-speed USB device number 19 using xhci_hcd
Feb 20 09:17:55 x1c kernel: usb 1-4: New USB device found, idVendor=1a40, idProduct=0801, bcdDevice= 1.00
Feb 20 09:17:55 x1c kernel: usb 1-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Feb 20 09:17:55 x1c kernel: usb 1-4: Product: USB 2.0 Hub
Feb 20 09:17:55 x1c kernel: hub 1-4:1.0: USB hub found
Feb 20 09:17:55 x1c kernel: hub 1-4:1.0: 4 ports detected
Feb 20 09:17:56 x1c kernel: usb 1-4.3: new full-speed USB device number 20 using xhci_hcd
Feb 20 09:17:56 x1c kernel: usb 1-4.3: New USB device found, idVendor=2a94, idProduct=5249, bcdDevice= 1.03
Feb 20 09:17:56 x1c kernel: usb 1-4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 20 09:17:56 x1c kernel: usb 1-4.3: Product: Multi-Touch by G2TSP
Feb 20 09:17:56 x1c kernel: usb 1-4.3: Manufacturer: G2Touch
Feb 20 09:17:56 x1c kernel: input: G2Touch Multi-Touch by G2TSP as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.3/1-4.3:1.0/0003:2A94:5249.0013/input/input37
Feb 20 09:17:56 x1c kernel: hid-multitouch 0003:2A94:5249.0013: input,hidraw0: USB HID v1.11 Device [G2Touch Multi-Touch by G2TSP] on usb-0000:00:14.0-4.3/input0
Feb 20 09:17:56 x1c kernel: hid-generic 0003:2A94:5249.0014: hiddev96,hidraw1: USB HID v1.11 Device [G2Touch Multi-Touch by G2TSP] on usb-0000:00:14.0-4.3/input1
Feb 20 09:17:56 x1c mtp-probe[43176]: checking bus 1, device 20: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.3"
Feb 20 09:17:56 x1c mtp-probe[43176]: bus: 1, device: 20 was not an MTP device
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) config/udev: Adding input device G2Touch Multi-Touch by G2TSP (/dev/input/mouse2)
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) No input driver specified, ignoring this device.
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) This device may have been added with another device file.
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) config/udev: Adding input device G2Touch Multi-Touch by G2TSP (/dev/input/event17)
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: Applying InputClass "evdev touchscreen catchall"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: Applying InputClass "libinput touchscreen catchall"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) Using input driver 'libinput' for 'G2Touch Multi-Touch by G2TSP'
Feb 20 09:17:56 x1c kernel: usb 1-4.3: USB disconnect, device number 20
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) systemd-logind: got fd for /dev/input/event17 13:81 fd 93 paused 0
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: always reports core events
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) Option "Device" "/dev/input/event17"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) Option "_source" "server/udev"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) event17 - G2Touch Multi-Touch by G2TSP: is tagged by udev as: Touchscreen
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) event17 - G2Touch Multi-Touch by G2TSP: device is a touch device
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) event17 - G2Touch Multi-Touch by G2TSP: device removed
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.3/1-4.3:1.0/0003:2A94:5249.0013/input/input37/event17"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) XINPUT: Adding extended input device "G2Touch Multi-Touch by G2TSP" (type: TOUCHSCREEN, id 14)
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) Option "AccelerationScheme" "none"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: (accel) selected scheme none/0
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: (accel) acceleration factor: 2.000
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (**) G2Touch Multi-Touch by G2TSP: (accel) acceleration threshold: 4
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (EE) client bug: Invalid path /dev/input/event17
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: [dix] couldn't enable device 14
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (EE) Couldn't init device "G2Touch Multi-Touch by G2TSP"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) UnloadModule: "libinput"
Feb 20 09:17:56 x1c /usr/libexec/gdm-x-session[3641]: (II) systemd-logind: releasing fd for 13:81
有人知道此类设置的正确配置吗？
谢谢！