我已经为暂停问题苦苦挣扎了一段时间了。
我正在运行带有 4.19.93-1-lts 的 XPS15 9570。我的系统无法进入深度睡眠并输出以下错误：
“PM：某些设备无法挂起，或检测到提前唤醒事件”
I did a bunch of research and in all the posts I've found the error is accompanied by an error message indicating which device fails. In my case there is no device specific error or any other message indicating the reason.
Jan 10 16:06:39 [host] kernel: PM: suspend entry (deep)
Jan 10 16:06:40 [host] kernel: PM: Syncing filesystems ... done.
Jan 10 16:06:40 [host] kernel: Freezing user space processes ... (elapsed 0.001 seconds) done.
Jan 10 16:06:40 [host] kernel: OOM killer disabled.
Jan 10 16:06:40 [host] kernel: Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Jan 10 16:06:40 [host] kernel: Suspending console(s) (use no_console_suspend to debug)
Jan 10 16:06:40 [host] kernel: wlp58s0: deauthenticating from fc:ec:da:ab:2f:c3 by local choice (Reason: 3=DEAUTH_LEAVING)
Jan 10 16:06:40 [host] kernel: sd 2:0:0:0: [sda] Synchronizing SCSI cache
Jan 10 16:06:40 [host] kernel: sd 2:0:0:0: [sda] Stopping disk
Jan 10 16:06:40 [host] kernel: PM: Some devices failed to suspend, or early wake event detected
更多期刊：https://pastebin.com/8kaFhfZQ
如果有人能提供有关如何调试此问题的指导，我将不胜感激。
答案1
一些想法...确保您的umount网络共享。sudo fuser /media/<mountlocation>如果您无法卸载它们，将显示要停止的进程，并将umount -f -l /media/<mountlocation>强制卸载。
同时禁用 LAN 唤醒：
$ sudo ethtool -s eno1 wol d