问题[thinkpad](ubuntu)

我有一个运行 Ubuntu 18.04 的 Thinkpad X1 Carbon 集成网络摄像头工作正常......直到它不是。

我的电脑突然无法检测到相机。例如，当我打开 Cheese 时，黑屏上写着“找不到设备”。

我应该尝试找出问题所在并修复它的故障排除步骤是什么？

我试过重新启动计算机。

的输出lsusb是：

Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
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 007: ID 06cb:00bd Synaptics, Inc. 
Bus 001 Device 002: ID 248a:8367  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

感谢您的帮助和想法。

我尽可能按照几个指南在我的 Thinkpad T420 上设置 Thinkfan，但我仍然无法让它工作。

错误

$ sudo thinkfan -n
ERROR: /sys/class/hwmon/hwmon0/temp1_input: No such file or directory

配置

thinkfan/hirsute,now 1.2.1-2 amd64 [installed]
lm-sensors/hirsute,now 1:3.6.0-7 amd64 [installed]

$ sensors
thinkpad-isa-0000
Adapter: ISA adapter
fan1:        3575 RPM

BAT0-acpi-0
Adapter: ACPI interface
in0:          12.44 V  

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +57.0°C  (high = +86.0°C, crit = +100.0°C)
Core 0:        +55.0°C  (high = +86.0°C, crit = +100.0°C)
Core 1:        +56.0°C  (high = +86.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +55.0°C  (crit = +98.0°C)

$ cat /etc/modules-load.d/modules.conf 
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.


# Generated by sensors-detect on Fri May 14 08:59:44 2021
# Chip drivers
coretemp

# Generated by sensors-detect on Fri May 14 22:52:42 2021
# Chip drivers
coretemp

$ cat /etc/thinkfan.conf
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp3_input
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp1_input
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp2_input
sensor /sys/devices/virtual/thermal/thermal_zone0/hwmon1/temp1_input

(0,     0,      42)
(1,     40,     47)
(2,     45,     52)
(3,     50,     57)
(4,     55,     62)
(5,     60,     67)
(6,     65,     72)
(7,     70,     77)
(127,   75,     32767)

$ find /sys/devices -type f -name "temp*_input"
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp3_input
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp1_input
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp2_input
/sys/devices/virtual/thermal/thermal_zone0/hwmon1/temp1_input

$ cat /etc/modprobe.d/thinkfan.conf
options thinkpad_acpi fan_control=1

$ cat /etc/default/thinkfan
# Additional startup parameters
#DAEMON_ARGS="-q"
START=yes
DAEMON_ARGS="-q -b 1 -s 3"

Operating System: Kubuntu 21.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-17-generic
OS Type: 64-bit
Graphics Platform: X11
Processors: 4 × Intel® Core™ i7-2620M CPU @ 2.70GHz
Memory: 7.7 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 3000

我买了一台新的联想 Thinkpad T14 Gen 1，后面有一个 nano sim 读卡器。我插入了一张 nano sim 卡，但似乎没有被检测到。谁能告诉我如何检查这台笔记本电脑是否支持 WWAN，以及如何检查是否检测到 sim 卡。我正在使用 Ubuntu 20.10。

我最近从 16.04 到 20.04 从 Xbuntu 过去了。在 16.04 版本中，可以（默认情况下）在屏幕的右上角看到一个电池的小图标。现在这个“小部件”不再存在，我不知道如何添加它。我什至无法使用图形菜单从任何其他方检查电池电量。

随便走走

现在唯一的方法（当然这只是一个解决方法）是命令行：我只是使用以下命令将现在检测到的电池电量与满电量电池进行比较：

• 现在的水平：

cat /sys/class/power_supply/BAT1/energy_now 

• 对于理论电池电量：

cat /sys/class/power_supply/BAT1/energy_full 

问题：

走动有时会很痛苦。有没有办法在图形用户界面上添加旧的小部件？这会让我节省很多时间。

补充资料：

笔记本电脑是联想 ThinkPad T470。

我查看了日志并看到了这个：

如果我理解这一点，系统是否会尝试交换到加密交换文件？我的硬盘已加密，我设置了一个常规交换文件...

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/vgubuntu-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/nvme0n1p2 during installation
UUID=ebdb51fe-2271-4425-951a-825066ef4e7b /boot           ext4    defaults        0       2
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=0441-297F  /boot/efi       vfat    umask=0077      0       1
/dev/mapper/vgubuntu-swap_1 none            swap    sw              0       0
/swapfile swap swap defaults 0 0

我刚刚得到了另一个随机冻结（第一次冻结后 7 天），我不得不重置我的笔记本电脑，其中包含以下日志：

18:52:30 kernel: sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0
18:52:30 gdm-session-wor: gkr-pam: unable to locate daemon control file
18:52:20 wpa_supplicant: nl80211: Failed to create a P2P Device interface p2p-dev-wlp0s20f3
18:52:20 kernel: iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
18:52:19 systemd: Failed to start Cryptography Setup for cryptswap.
18:52:19 systemd-cryptse: crypt_init() failed: Block device required
18:52:19 kernel: sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0
18:52:19 systemd: Failed to start Cryptography Setup for cryptswap.
18:52:19 systemd-cryptse: crypt_init() failed: Block device required
18:52:18 systemd: Failed to start Cryptography Setup for cryptswap.
18:52:18 systemd-cryptse: crypt_init() failed: Block device required
18:52:18 kernel: ACPI Error: Aborting method \_SB.HIDD._DSM due to previous error (AE_AML_OPERAND_TYPE) (20190816/psparse-529)
18:52:18 kernel: crypt_init() failed: Block device required
18:52:18 kernel: Device /cryptswap doesn't exist or access denied.
18:52:18 kernel: Failed to start Cryptography Setup for cryptswap.
18:52:18 kernel: Initramfs unpacking failed: Decoding failed

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/vgubuntu-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/nvme0n1p2 during installation
UUID=ebdb51fe-2271-4425-951a-825066ef4e7b /boot           ext4    defaults        0       2
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=0441-297F  /boot/efi       vfat    umask=0077      0       1
/swapfile swap swap defaults 0 0

添加 /etc/crypttab：

nvme0n1p3_crypt UUID=bca86e55-cc12-4b54-ba1e-61856cc8db55 none luks,discard
cryptswap /cryptswap /dev/urandom swap

在尝试了这里的建议后，这并没有解决我的问题，我决定问这个问题：

我的 Thinkpad T14 上有一个新安装的 Ubuntu 18.04 LTS，但我无法通过 HDMI 电缆连接到外接显示器。我尝试了 2 个不同的显示器，所以问题的根源应该在笔记本电脑端。

有人可以帮我解决吗？提前致谢！

我正在尝试调试我遇到的 fwupd 问题，但首先我想了解当我尝试启动我的 Ubuntu 20.10 时我的 ThinkPad T470 上的 UEFI 在做什么。

这是我的/boot/efi内容：

/boot/efi/
└── EFI
    ├── BOOT
    │   ├── BOOTX64.EFI
    │   ├── fbx64.efi
    │   └── mmx64.efi
    └── ubuntu
        ├── BOOTX64.CSV
        ├── fw
        │   ├── fwupd-3b8c8162-188c-46a4-aec9-be43f1d65697.cap
        │   ├── fwupd-7a176688-0960-47ba-931b-7829849e8347.cap
        │   └── fwupd-d95d3ada-eef1-464f-8a2a-a11232b8556b.cap
        ├── fwupdx64.efi
        ├── grub.cfg
        ├── grubx64.efi
        ├── mmx64.efi
        └── shimx64.efi

我目前还安装了较旧的 Ubuntu 16.04，并且正在使用 NVMe 驱动器。我的引导顺序首先是“ubuntu”，然后是我的 NVMe 驱动器。当我启动我的系统时，我收到一个警告System bootloader not found, initializing defaults.。然后我的系统从 nvme 设备启动，GRUB 允许我在 Ubuntu 20.10 和 Ubuntu 16.04 中启动。

看起来我的固件启动选项“Ubuntu”和“Linux-Firmware-Updater”无法加载（它返回启动菜单而不显示任何错误），所以我试图了解我的/EFI/树是正常的还是我搞砸了向上。

这棵树的结构正常吗？我应该同时拥有EFI/BOOT和EFI/ubuntu吗？难道我做错了什么？

编辑：要求的详细信息：

$ sudo efibootmgr -v
BootCurrent: 0019
Timeout: 0 seconds
BootOrder: 0000,0017,0010,0011,0012,0013,0018,001A,001B,001C,001D,001E,0001,0019
Boot0000* ubuntu    HD(3,MBR,0xff767ef,0x64bb800,0x100800)/File(\EFI\ubuntu\shimx64.efi)
Boot0001* Linux-Firmware-Updater    HD(3,MBR,0xff767ef,0x64bb800,0x100800)/File(\EFI\ubuntu\fwupdx64.efi)
Boot0010  Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011  Boot Menu FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0012  Diagnostic Splash Screen  FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013  Lenovo Diagnostics    FvFile(3f7e615b-0d45-4f80-88dc-26b234958560)
Boot0014  Startup Interrupt Menu    FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot0015  Rescue and Recovery   FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot0016  MEBx Hot Key  FvFile(ac6fd56a-3d41-4efd-a1b9-870293811a28)
Boot0019* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)
# (removed a few non-important entries)

的 UUIDEFI/ubuntu/grub.cfg似乎与efibootmgr列表中的任何内容都不对应：

$ sudo less /boot/efi/EFI/ubuntu/grub.cfg
search.fs_uuid 4be2c650-c96c-4823-a833-28d345042788 root 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg

BOOT/bootx64.efi和EFI/ubuntu/shimx64.efi似乎是一样的：

$ sudo md5sum /boot/efi/EFI/BOOT/bootx64.efi
78415fb8fb9b909f8029858113f1335f  /boot/efi/EFI/BOOT/bootx64.efi
$ sudo md5sum /boot/efi/EFI/ubuntu/shimx64.efi
78415fb8fb9b909f8029858113f1335f  /boot/efi/EFI/ubuntu/shimx64.efi

看起来我使用的是 MBR，而不是 GPT。

标题是自我解释的。我无法更改联想 Thinkpad T14 笔记本电脑的屏幕亮度。我尝试了全新安装的 Ubuntu 18.04 和 20.04。他们都没有工作。现在我决定坚持 18.04。有没有人设法解决这个问题？

提示：一些可能有用的输出：

$ uname -r
--> 5.4.0-54-generic

$ dpkg --print-architecture
--> amd64

我将Thinkpad T460与 Debian Buster 一起使用。

我安装了 tlp 并将电池阈值设置为在 75% 开始充电并在 85% 停止。

# Battery charge thresholds (ThinkPad only, tp-smapi or acpi-call kernel module
# required). Charging starts when the remaining capacity falls below the
# START_CHARGE_THRESH value and stops when exceeding the STOP_CHARGE_THRESH value.
# Main / Internal battery (values in %)
START_CHARGE_THRESH_BAT0=75
STOP_CHARGE_THRESH_BAT0=85
# Ultrabay / Slice / Replaceable battery (values in %)
START_CHARGE_THRESH_BAT1=75
STOP_CHARGE_THRESH_BAT1=85

它工作正常，只是在达到阈值限制时它不会开始放电。充电停止，但它停留在 85% 并且永远不会低于。似乎它仅在达到限制时才使用交流电。

我是否误解了阈值的行为，或者这只是一个错误？

尽管有很多关于相关问题的论坛，但我找不到有效的修复程序。我的蓝牙无法打开，我认为这是驱动程序问题，但我对它的工作原理真的了解有限。下面是有关 cmd 行中输出内容的一些信息：

~$ rfkill list
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
3: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

lshw -C network
WARNING: you should run this program as super-user.
  *-network                 
       description: Wireless interface
       product: RTL8822CE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlo1
       version: 00
       serial: 5c:3a:45:2e:2c:dd
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtw_8822ce driverversion=5.9.1-050901-generic firmware=N/A ip=192.168.43.62 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:83 ioport:2000(size=256) memory:d0500000-d050ffff

在我看来，我需要 rtw_8822ce，但是当我运行 find /lib/modules 之类的命令时找不到它

或者

lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 7
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
02:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Renoir (rev c2)
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 1637
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor (rev 01)
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
05:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 81)
05:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 81)

提前感谢任何有时间和耐心帮助我解决这个问题的人:)

祝你有美好的一天