我最近买了一个联想 Ideapad Flex 5。我立即删除了 Windows 11 Home 并安装了 Ubuntu 23.04。唯一的问题是：触控板不工作。Ubuntu 甚至无法识别触控板，正如你从下面的输出中看到的那样lsusb：
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 0bda:4853 Realtek Semiconductor Corp. Bluetooth Radio
Bus 003 Device 003: ID 1c7a:0576 LighTuning Technology Inc. EgisTec EH576
Bus 003 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 30c9:0053 Luxvisions Innotech Limited Integrated Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
我试过其他 Linux 发行版；同样的问题。不过，触控板在 BIOS 菜单中工作正常，所以我知道这不是硬件问题。我在网上到处找，但什么也没找到。
编辑
这个问题是重复的但没有答案。请有人帮帮我，我真的需要这个。输出libinput list-devices：
Kernel: /dev/input/event3
Group: 1
Seat: seat0, default
Capabilities: keyboard
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
Device: Power Button
Kernel: /dev/input/event0
Group: 2
Seat: seat0, default
Capabilities: keyboard
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
Device: Lid Switch
Kernel: /dev/input/event1
Group: 3
Seat: seat0, default
Capabilities: switch
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
Device: PixArt USB Optical Mouse
Kernel: /dev/input/event4
Group: 4
Seat: seat0, default
Capabilities: pointer
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: disabled
Nat.scrolling: disabled
Middle emulation: disabled
Calibration: n/a
Scroll methods: button
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: flat *adaptive
Rotation: n/a
Device: Integrated Camera: Integrated C
Kernel: /dev/input/event6
Group: 5
Seat: seat0, default
Capabilities: keyboard
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
Device: Ideapad extra buttons
Kernel: /dev/input/event5
Group: 6
Seat: seat0, default
Capabilities: keyboard
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
Device: AT Translated Set 2 keyboard
Kernel: /dev/input/event2
Group: 7
Seat: seat0, default
Capabilities: keyboard
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: n/a
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: n/a
我跑了sudo dmesg | grep modprobe好几次sudo modprobe i2c-hid-acpi，得到了这个：
[ 2.261372] systemd[1]: Created slice system-modprobe.slice - Slice /system/modprobe.
[ 2.273890] systemd[1]: Starting [email protected] - Load Kernel Module configfs...
[ 2.274501] systemd[1]: Starting [email protected] - Load Kernel Module drm...
[ 2.275151] systemd[1]: Starting modprobe@efi_pstore.service - Load Kernel Module efi_pstore...
[ 2.275783] systemd[1]: Starting [email protected] - Load Kernel Module fuse...
[ 2.280092] systemd[1]: [email protected]: Deactivated successfully.
[ 2.280232] systemd[1]: Finished [email protected] - Load Kernel Module configfs.
[ 2.280437] systemd[1]: modprobe@efi_pstore.service: Deactivated successfully.
[ 2.280591] systemd[1]: Finished modprobe@efi_pstore.service - Load Kernel Module efi_pstore.
[ 2.280779] systemd[1]: [email protected]: Deactivated successfully.
[ 2.280932] systemd[1]: Finished [email protected] - Load Kernel Module fuse.
[ 2.293895] systemd[1]: [email protected]: Deactivated successfully.
[ 2.294095] systemd[1]: Finished [email protected] - Load Kernel Module drm.
[ 3.880063] audit: type=1400 audit(1691009312.052:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=665 comm="apparmor_parser"
[ 3.880067] audit: type=1400 audit(1691009312.052:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=665 comm="apparmor_parser"
答案1
对于联想 Ideapad Flex 5 14ARE05，没有已知的解决方法，但我会尝试按照描述将“i8042.reset=1”添加到内核命令行中https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1912880在挂起状态下强制关机可以恢复触摸板（尽管我在联想 Thinkpad Yoga S1 上使用了 i8042 重置来修复相反的问题，即在挂起状态下强制关机后没有键盘/触摸板，但值得一试。自从它被报告以来，我一直在使用这个技巧）。
您可能还想尝试“i8042.nopnp=1”，如上述报告中的 dmesg 日志所示：
[ 0.602905] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
你也可以i8042.nomux=1尝试i8042.kbreset=1
您可能还想向 Linux 内核 ML 或 bugzilla 报告该错误https://bugzilla.kernel.org/。您可能想要发布您的 dmesg 输出，或者至少：
sudo dmesg|grep -E "PS\/2|ACPI|hid|i8042"
对于联想 IdeaPad 5 15are05，IdeaPad 5 15are05 - elan 触摸板在 20.04 和 18.04 上无法使用
modprobe i2c_hid echo "i2c-ELAN0001:00" > /sys/bus/i2c/drivers/elants_i2c/unbind echo "i2c-ELAN0001:00" > /sys/bus/i2c/drivers/i2c_hid/bind 或添加到
initcall_blacklist=elants_i2c_driver_init内核命令行（/etc/default/grub 中的 GRUB_CMDLINE_LINUX=""（2020 可能已在上游修复）
对于联想 IdeaPad 3 14IIL05，https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1880172/comments/53， 那是：
将以下参数添加到 GRUB_CMDLINE_LINUX_DEFAULT。
“i8042.nopnp=1 pci=nocrs”（2020 年）
@SO_32 您可能想要尝试不使用pci=nocrs。i8042 参数本身不应该影响 wifi 设备。