我有一台 HP EliteBook-8540p，它运行 Core™ i7 CPU Q 720 处理器和 12GB RAM。
自从我在 2016 年 3 月购买以来，它一直在运行 Ubuntu。
随着新版本的推出，我不断升级版本，它从未出过任何问题，直到 Focal Fossa，20.04。
暂停 Ubuntu 后，按电源按钮恢复，笔记本电脑恢复运行，但没有屏幕显示，并且似乎没有磁盘活动。
这是来自系统日志的内容，我曾尝试恢复，但最终不得不重启电源。
没有任何记录显示我尝试恢复。
May 17 13:13:45 kevin-HP-EliteBook-8540p NetworkManager[1156]: <info> [1589685225.8086] manager: sleep: sleep requested (sleeping: no enabled: yes)
May 17 13:13:45 kevin-HP-EliteBook-8540p NetworkManager[1156]: <info> [1589685225.8088] manager: NetworkManager state is now ASLEEP
May 17 13:13:45 kevin-HP-EliteBook-8540p whoopsie[1637]: [13:13:45] offline
May 17 13:13:51 kevin-HP-EliteBook-8540p systemd[1]: Reached target Sleep.
May 17 13:13:51 kevin-HP-EliteBook-8540p systemd[1]: Starting Suspend...
May 17 13:13:51 kevin-HP-EliteBook-8540p wpa_supplicant[1198]: wlo1: CTRL-EVENT-BEACON-LOSS
May 17 13:13:51 kevin-HP-EliteBook-8540p kernel: [ 6938.098208] PM: suspend entry (deep)
May 17 13:13:51 kevin-HP-EliteBook-8540p systemd-sleep[5415]: Suspending system...
May 17 14:01:46 kevin-HP-EliteBook-8540p systemd[1]: Starting Flush Journal to Persistent Storage...
May 17 14:01:46 kevin-HP-EliteBook-8540p systemd[1]: Finished Set the console keyboard layout.
May 17 14:01:46 kevin-HP-EliteBook-8540p systemd[1]: Finished udev Coldplug all Devices.
May 17 14:01:46 kevin-HP-EliteBook-8540p systemd-modules-load[403]: Inserted module 'lp'
May 17 14:01:46 kevin-HP-EliteBook-8540p systemd[1]: Starting Helper to synchronize boot up for ifupdown...
我找到了一个安装了 16.04 的硬盘，我克隆并安装了它。
它运行正常，并从挂起状态恢复。
我运行了软件更新程序，然后 16.04 出现了同样的问题，它无法从挂起状态恢复，并出现了与 20.04 安装相同的故障。
我现在正在运行另一个 16.04 克隆，并禁用了更新。
syslog从运行 16.04 安装开始。
May 25 10:47:05 me-hp-elitebook-8540p systemd[1]: Starting Suspend...
May 25 10:47:05 me-hp-elitebook-8540p systemd-sleep[8394]: Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory
May 25 10:47:05 me-hp-elitebook-8540p systemd-sleep[8396]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
May 25 10:47:05 me-hp-elitebook-8540p systemd-sleep[8394]: Suspending system...
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.516243] PM: Syncing filesystems ... done.
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.974414] PM: Preparing system for sleep (mem)
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.974758] Freezing user space processes ... (elapsed 0.002 seconds) done.
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.977015] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.978258] PM: Suspending system (mem)
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.978333] Suspending console(s) (use no_console_suspend to debug)
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.978842] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
May 25 16:29:54 me-hp-elitebook-8540p kernel: [ 6460.978954] sd 0:0:0:0: [sda] Synchronizing SCSI cache