我正在运行带有 Mate 桌面的 Ubuntu 22.04。昨天，当我回到办公桌时，笔记本电脑屏幕一片漆黑。我点击了鼠标，但它没有唤醒。我以为它被冻结了，所以我通过按住电源按钮五秒钟进行了硬重置。之后，我注意到它在启动过程中出现滞后并在 BIOS 徽标处停留了一段时间。前一天，我将内核升级到：
uname -a
Linux whatnext 5.15.0-72-generic #79-Ubuntu SMP Wed Apr 19 08:22:18 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
尽管 BIOS 存在滞后，系统最终还是启动并运行良好。
我还注意到日志中有一个错误，但是它存在很长时间了，所以我认为它无关紧要：
Loading X.509 certificate: UEFI:db
[ 0.834706] integrity: Problem loading X.509 certificate -65
[ 0.834710] fbcon: Taking over console
你能帮助我吗？
编辑：
输出 systemd-analyze：
Startup finished in 3.051s (kernel) + 9.435s (userspace) = 12.487s
graphical.target reached after 9.208s in userspace
输出systemd-analyze blame：
6.028s NetworkManager-wait-online.service
2.368s snapd.service
1.807s snapd.seeded.service
1.494s networkd-dispatcher.service
1.479s [email protected]
1.075s systemd-resolved.service
1.042s xrdp.service
745ms ufw.service
525ms netfilter-persistent.service
414ms blueman-mechanism.service
335ms dev-nvme0n1p2.device
291ms binfmt-support.service
265ms php8.1-fpm.service
252ms snapd.apparmor.service
240ms udisks2.service
225ms tlp.service
218ms apport-autoreport.service
213ms upower.service
202ms accounts-daemon.service
195ms avahi-daemon.service
193ms bluetooth.service
192ms apparmor.service
180ms lightdm.service
180ms polkit.service
180ms dev-loop23.device
180ms dev-loop25.device
179ms power-profiles-daemon.service
178ms dev-loop24.device
178ms dev-loop29.device
177ms dev-loop17.device
176ms plymouth-quit-wait.service
175ms dev-loop28.device
174ms dev-loop19.device
173ms dev-loop31.device
172ms phpsessionclean.service
171ms dev-loop22.device
170ms dev-loop20.device
170ms dev-loop21.device
168ms dev-loop30.device
167ms dev-loop16.device
166ms dev-loop12.device
164ms systemd-udev-trigger.service
164ms dev-loop15.device
163ms dev-loop10.device
161ms dev-loop13.device
160ms suricata.service
159ms switcheroo-control.service
159ms [email protected]
157ms dev-loop26.device
155ms thermald.service
155ms dns-clean.service
154ms systemd-logind.service
154ms gpu-manager.service
153ms dev-loop14.device
153ms apport.service
152ms wpa_supplicant.service
149ms dev-loop5.device
148ms snap.upnp-server.webdav.service
146ms dev-loop6.device
145ms dev-loop7.device
144ms dev-loop2.device
143ms dev-loop11.device
143ms winbind.service
143ms dev-loop1.device
143ms dev-loop0.device
140ms dev-loop8.device
140ms secureboot-db.service
135ms dev-loop9.device
131ms grub-common.service
128ms dev-loop27.device
126ms dev-loop4.device
125ms smartmontools.service
118ms dev-loop18.device
114ms dev-loop3.device
114ms systemd-journald.service
114ms systemd-timesyncd.service
104ms systemd-oomd.service
101ms virtualbox.service
98ms mini-httpd.service
97ms console-setup.service
90ms systemd-tmpfiles-setup.service
88ms apache2.service
87ms lm-sensors.service
80ms ModemManager.service
79ms modprobe@chromeos_pstore.service
78ms update-notifier-download.service
77ms rsyslog.service
72ms e2scrub_reap.service
64ms proc-sys-fs-binfmt_misc.mount
64ms systemd-udevd.service
64ms bluez-alsa.service
62ms snap-alfacast-44.mount
61ms snap-android\x2dstudio-126.mount
56ms snap-arduino-85.mount
55ms snap-bare-5.mount
54ms snap-chromium-2477.mount
53ms cups.service
53ms snap-chromium\x2dffmpeg-30.mount
51ms networking.service
51ms snap-code-129.mount
50ms plymouth-read-write.service
50ms systemd-networkd.service
49ms snap-core-14946.mount
48ms snap-core18-2745.mount
47ms NetworkManager.service
47ms snap-core20-1891.mount
46ms keyboard-setup.service
45ms kerneloops.service
44ms snap-core22-634.mount
42ms snap-cups-872.mount
41ms netperf.service
41ms snap-firefox-2667.mount
41ms snap-firefox-2710.mount
41ms systemd-journal-flush.service
40ms snap-flutter-130.mount
39ms snap-gnome\x2d3\x2d28\x2d1804-198.mount
38ms snap-gnome\x2d3\x2d38\x2d2004-140.mount
37ms snap-gnome\x2d42\x2d2204-102.mount
36ms snap-gtk2\x2dcommon\x2dthemes-13.mount
35ms systemd-fsck@dev-disk-by\x2duuid-1AD1\x2d6070.service
35ms snap-gtk\x2dcommon\x2dthemes-1535.mount
34ms snap-guiscrcpy-256.mount
33ms ssh.service
33ms vtun.service
32ms snap-onlyoffice\x2ddesktopeditors-147.mount
31ms snap-p7zip\x2ddesktop-220.mount
30ms nscd.service
29ms snap-pycharm\x2dcommunity-332.mount
28ms snap-qt515\x2dcore20-28.mount
27ms snap-scrcpy-399.mount
27ms nvmf-autoconnect.service
26ms snap-snapd-19122.mount
25ms systemd-modules-load.service
24ms openvpn.service
24ms snap-snapd\x2ddesktop\x2dintegration-83.mount
23ms boot-efi.mount
23ms snap-spotify-67.mount
22ms plymouth-start.service
22ms conky-refresh.service
21ms snap-sublime\x2dtext-118.mount
20ms snap-upnp\x2dserver-1.mount
19ms dev-hugepages.mount
19ms dev-mqueue.mount
19ms snap-whatsie-146.mount
18ms sys-kernel-debug.mount
18ms grub-initrd-fallback.service
18ms sys-kernel-tracing.mount
18ms tmp.mount
17ms atd.service
15ms var-snap-firefox-common-host\x2dhunspell.mount
15ms kmod-static-nodes.service
15ms systemd-sysusers.service
14ms [email protected]
13ms [email protected]
12ms xrdp-sesman.service
12ms [email protected]
11ms systemd-tmpfiles-setup-dev.service
10ms setvtrgb.service
10ms alsa-restore.service
10ms systemd-user-sessions.service
9ms systemd-random-seed.service
8ms systemd-sysctl.service
8ms systemd-update-utmp.service
7ms [email protected]
7ms systemd-network-generator.service
6ms systemd-backlight@backlight:amdgpu_bl0.service
6ms systemd-remount-fs.service
5ms swapfile.swap
5ms systemd-update-utmp-runlevel.service
4ms systemd-networkd-wait-online.service
4ms modprobe@efi_pstore.service
4ms modprobe@pstore_blk.service
3ms modprobe@pstore_zone.service
3ms sys-fs-fuse-connections.mount
3ms rtkit-daemon.service
3ms ifupdown-pre.service
2ms sys-kernel-config.mount
2ms [email protected]
1ms postfix.service
683us snapd.socket
输出mokutil --list-enrolled：
[key 1]
SHA1 Fingerprint: 76:a0:92:06:58:00:bf:37:69:01:c3:72:cd:55:a9:0e:1f:de:d2:e0
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
b9:41:24:a0:18:2c:92:67
Signature Algorithm: sha256WithRSAEncryption
Issuer: C=GB, ST=Isle of Man, L=Douglas, O=Canonical Ltd., CN=Canonical Ltd. Master Certificate Authority
Validity
Not Before: Apr 12 11:12:51 2012 GMT
Not After : Apr 11 11:12:51 2042 GMT
Subject: C=GB, ST=Isle of Man, L=Douglas, O=Canonical Ltd., CN=Canonical Ltd. Master Certificate Authority
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
Modulus:
00:bf:5b:3a:16:74:ee:21:5d:ae:61:ed:9d:56:ac:
bd:de:de:72:f3:dd:7e:2d:4c:62:0f:ac:c0:6d:48:
08:11:cf:8d:8b:fb:61:1f:27:cc:11:6e:d9:55:3d:
39:54:eb:40:3b:b1:bb:e2:85:34:79:ca:f7:7b:bf:
ba:7a:c8:10:2d:19:7d:ad:59:cf:a6:d4:e9:4e:0f:
da:ae:52:ea:4c:9e:90:ce:c6:99:0d:4e:67:65:78:
5d:f9:d1:d5:38:4a:4a:7a:8f:93:9c:7f:1a:a3:85:
db:ce:fa:8b:f7:c2:a2:21:2d:9b:54:41:35:10:57:
13:8d:6c:bc:29:06:50:4a:7e:ea:99:a9:68:a7:3b:
c7:07:1b:32:9e:a0:19:87:0e:79:bb:68:99:2d:7e:
93:52:e5:f6:eb:c9:9b:f9:2b:ed:b8:68:49:bc:d9:
95:50:40:5b:c5:b2:71:aa:eb:5c:57:de:71:f9:40:
0a:dd:5b:ac:1e:84:2d:50:1a:52:d6:e1:f3:6b:6e:
90:64:4f:5b:b4:eb:20:e4:61:10:da:5a:f0:ea:e4:
42:d7:01:c4:fe:21:1f:d9:b9:c0:54:95:42:81:52:
72:1f:49:64:7a:c8:6c:24:f1:08:70:0b:4d:a5:a0:
32:d1:a0:1c:57:a8:4d:e3:af:a5:8e:05:05:3e:10:
43:a1
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
AD:91:99:0B:C2:2A:B1:F5:17:04:8C:23:B6:65:5A:26:8E:34:5A:63
X509v3 Authority Key Identifier:
AD:91:99:0B:C2:2A:B1:F5:17:04:8C:23:B6:65:5A:26:8E:34:5A:63
X509v3 Basic Constraints: critical
CA:TRUE
X509v3 Key Usage:
Digital Signature, Certificate Sign, CRL Sign
X509v3 CRL Distribution Points:
Full Name:
URI:http://www.canonical.com/secure-boot-master-ca.crl
Signature Algorithm: sha256WithRSAEncryption
Signature Value:
3f:7d:f6:76:a5:b3:83:b4:2b:7a:d0:6d:52:1a:03:83:c4:12:
a7:50:9c:47:92:cc:c0:94:77:82:d2:ae:57:b3:99:04:f5:32:
3a:c6:55:1d:07:db:12:a9:56:fa:d8:d4:76:20:eb:e4:c3:51:
db:9a:5c:9c:92:3f:18:73:da:94:6a:a1:99:38:8c:a4:88:6d:
c1:fc:39:71:d0:74:76:16:03:3e:56:23:35:d5:55:47:5b:1a:
1d:41:c2:d3:12:4c:dc:ff:ae:0a:92:9c:62:0a:17:01:9c:73:
e0:5e:b1:fd:bc:d6:b5:19:11:7a:7e:cd:3e:03:7e:66:db:5b:
a8:c9:39:48:51:ff:53:e1:9c:31:53:91:1b:3b:10:75:03:17:
ba:e6:81:02:80:94:70:4c:46:b7:94:b0:3d:15:cd:1f:8e:02:
e0:68:02:8f:fb:f9:47:1d:7d:a2:01:c6:07:51:c4:9a:cc:ed:
dd:cf:a3:5d:ed:92:bb:be:d1:fd:e6:ec:1f:33:51:73:04:be:
3c:72:b0:7d:08:f8:01:ff:98:7d:cb:9c:e0:69:39:77:25:47:
71:88:b1:8d:27:a5:2e:a8:f7:3f:5f:80:69:97:3e:a9:f4:99:
14:db:ce:03:0e:0b:66:c4:1c:6d:bd:b8:27:77:c1:42:94:bd:
fc:6a:0a:bc
[key 2]
SHA1 Fingerprint: ed:b0:b4:c8:15:c7:cd:09:1d:ea:c6:62:02:29:2f:e8:49:3c:08:80
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
02:8a:4d:05:27:66:63:cc:be:3a:cd:fd:5f:b3:9d:98:23:23:7a:a9
Signature Algorithm: sha256WithRSAEncryption
Issuer: CN=kenn-IdeaPad-3-15ALC6 Secure Boot Module Signature key
Validity
Not Before: Sep 5 09:44:05 2022 GMT
Not After : Aug 12 09:44:05 2122 GMT
Subject: CN=kenn-IdeaPad-3-15ALC6 Secure Boot Module Signature key
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
Modulus:
00:be:c5:2f:36:3f:bf:c9:93:9a:26:2b:c2:fa:04:
5a:f3:e3:57:12:dd:65:a3:ba:43:12:c4:bb:ff:f6:
31:d1:10:15:22:88:27:64:7d:03:dc:3d:8b:d4:ed:
43:d2:90:1c:cf:9b:78:8f:43:f8:fe:22:e3:0a:ad:
bf:c6:41:61:0d:f7:c7:d2:18:5f:01:ad:88:11:e9:
f1:90:4e:ae:85:e2:4b:79:07:71:19:38:64:97:b2:
66:00:a4:c1:c2:f3:7b:16:f5:61:62:c0:ee:5f:3d:
22:1a:af:4c:1c:d1:85:f5:4d:47:b1:88:ec:7a:4f:
e1:dc:36:3a:02:f1:d8:d0:31:dd:b2:01:fa:7e:3a:
f7:16:54:5c:b8:9a:1d:29:39:25:2e:89:45:b4:26:
2e:67:73:90:bc:2b:87:21:c9:6c:62:56:f4:6a:ac:
4a:c3:c4:4a:d5:0d:ce:49:f2:ec:63:ac:95:9d:46:
84:db:8d:81:44:6b:df:f0:cd:3d:f9:56:3d:a7:4b:
69:39:b0:ca:00:08:0f:74:ce:d4:85:6c:74:2f:57:
6e:93:48:b2:f1:cc:00:a8:15:38:56:47:1b:f6:a1:
5e:b9:d2:4d:c9:b1:0b:c9:16:e1:97:f8:9f:92:c7:
f4:be:a1:e0:73:6c:03:95:df:b0:a7:d4:a4:39:d4:
fe:39
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
59:3A:5A:DA:59:A3:8C:EA:7F:1A:03:3B:C4:0F:FD:D9:54:7D:ED:62
X509v3 Authority Key Identifier:
59:3A:5A:DA:59:A3:8C:EA:7F:1A:03:3B:C4:0F:FD:D9:54:7D:ED:62
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Extended Key Usage:
Code Signing, 1.3.6.1.4.1.2312.16.1.2
Netscape Comment:
OpenSSL Generated Certificate
Signature Algorithm: sha256WithRSAEncryption
Signature Value:
02:39:87:80:9a:f7:e7:27:34:58:7a:86:18:76:6f:5f:bf:a6:
3e:3e:31:fb:80:75:47:ba:b4:2c:3d:bb:cf:29:8e:fc:32:25:
52:95:a0:2f:86:25:8d:df:bf:fd:d1:61:f4:fd:1f:99:33:19:
df:c8:fd:a3:fe:b3:fe:51:07:91:c8:10:c9:39:49:2a:c8:a6:
e9:82:ae:80:0b:ed:2a:77:d5:a8:7e:d0:a5:c1:ba:1d:c6:41:
cc:1f:4a:b5:73:20:b1:af:42:72:d1:52:e7:e1:c3:72:fb:78:
f3:e4:fa:12:1e:b9:1c:02:f6:66:22:89:53:ec:d6:d7:0c:c0:
8e:c9:d5:fa:49:1f:b8:b3:3c:74:ae:0a:fb:03:7d:4c:43:ce:
b3:f7:11:35:7c:5c:a0:32:9a:61:c3:d8:6b:56:d1:75:58:39:
40:04:58:91:32:f7:8c:2a:e9:37:56:9c:3b:04:e9:f1:e9:16:
97:cd:d1:97:9c:7c:07:c7:e7:44:0b:9e:4b:4f:e6:9a:19:57:
f1:d3:1c:a4:7e:4a:66:00:a5:33:e5:ce:0a:cb:ba:4f:0c:12:
7d:47:b5:aa:8f:be:f0:d2:66:d2:bf:63:a7:80:33:41:ae:6d:
25:fa:59:ec:c0:f1:27:ad:76:82:0a:fb:5d:c3:76:d1:d4:44:
56:6b:a3:df
编辑2：
输出nvme smart-log /dev/nvme0：
Smart Log for NVME device:nvme0 namespace-id:ffffffff
critical_warning : 0
temperature : 40 C (313 Kelvin)
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 1%
endurance group critical warning summary: 0
data_units_read : 27.013.146
data_units_written : 11.873.862
host_read_commands : 482.279.578
host_write_commands : 178.036.790
controller_busy_time : 4.854
power_cycles : 2.022
power_on_hours : 2.518
unsafe_shutdowns : 12
media_errors : 0
num_err_log_entries : 0
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
编辑3：
输出journalctl -k -b -p err：
May 27 11:14:26 whatnext kernel: integrity: Problem loading X.509 certificate -65
May 27 11:39:19 whatnext kernel: [drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3
May 27 12:18:25 whatnext kernel: [drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3
编辑4：
我在 BIOS 中禁用了“Secre Boot”，但什么也没有任何改变。