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如何修复 Ubuntu 18.04 上的随机冻结问题？

tag-icon • tag-icon 18.04 freeze
如何修复 Ubuntu 18.04 上的随机冻结问题？

如何修复 Ubuntu 18.04 上的随机操作系统冻结？这不仅是图形问题，因为我无法使用 Ubuntu 上的任何虚拟终端，键盘也没有反应。我切换到英特尔显卡，然后又换回 Nvidia 显卡，但什么都没有改变。我有一个 SSD。每次执行写入操作（例如在 Gedit 上保存）后，光标都会变成沙漏。这与冻结问题有关吗？

这些是重要的日志：

- 10:18:28 bluetoothd: Failed to set mode: Blocked through rfkill
   (0x12) 
- 10:18:28 spice-vdagent: Cannot access vdagent virtio channel
   /dev/virtio-ports/com.redhat.spice.0 
- 10:18:27 pulseaudio:
   [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio
   agent with ofono: org.freedesktop.DBus.Error.ServiceUnknown: The name
   org.ofono was not provided by any .service files
- 10:18:19 bluetoothd:
   Failed to set mode: Blocked through rfkill (0x12) 
- 10:18:19
   spice-vdagent: Cannot access vdagent virtio channel
   /dev/virtio-ports/com.redhat.spice.0 
- 10:18:18 wpa_supplicant: dbus:
   Failed to construct signal 
- 10:18:17 bluetoothd: Failed to set mode:
   Blocked through rfkill (0x12) 
- 10:18:17 kernel: PKCS#7 signature not
   signed with a trusted key 
- 10:18:15 kernel: Couldn't get size:
   0x800000000000000e 
- 10:18:15 kernel: MODSIGN: Couldn't get UEFI db
   list 10:18:15 kernel: Couldn't get size: 0x800000000000000e 
- 10:14:37
   gdm3: GLib: g_hash_table_find: assertion 'version ==
   hash_table->version' failed 
- 08:58:11 bluetoothd: Failed to set mode:
   Blocked through rfkill (0x12) 
- 08:58:10 spice-vdagent: Cannot access
   vdagent virtio channel /dev/virtio-ports/com.redhat.spice.0
- 08:58:10
   pulseaudio: [pulseaudio] backend-ofono.c: Failed to register as a
   handsfree audio agent with ofono:
   org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not
   provided by any .service files 
- 08:57:58 bluetoothd: Failed to set
   mode: Blocked through rfkill (0x12) 
- 08:57:58 spice-vdagent: Cannot
   access vdagent virtio channel /dev/virtio-ports/com.redhat.spice.0
- 08:57:56 kernel: PKCS#7 signature not signed with a trusted key
-   08:57:56 wpa_supplicant: dbus: Failed to construct signal 
- 08:57:55
   kernel: PKCS#7 signature not signed with a trusted key
- 08:57:55
   nvidia-persiste: Failed to query NVIDIA devices. Please ensure that
   the NVIDIA device files (/dev/nvidia*) exist, and that user 121 has
   read and write permissions for those files.
- 08:57:55 kernel: PKCS#7
   signature not signed with a trusted key 
-  08:57:55 bluetoothd: Failed
   to set mode: Blocked through rfkill (0x12) 
- 08:57:55 kernel: PKCS#7
   signature not signed with a trusted key 
- 08:57:53 kernel: Couldn't get
   size: 0x800000000000000e 
- 08:57:53 kernel: MODSIGN: Couldn't get UEFI
   db list 
- 08:57:53 kernel: Couldn't get size: 0x800000000000000e

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