当我这样做时sudo pm-hibernate，屏幕会关闭一秒钟，然后再次亮起。我使用检查了日志head /var/log/pm-suspend.log，结果如下：
Initial commandline parameters:
Wed Dec 21 12:11:34 IST 2016: Running hooks for hibernate.
Running hook /usr/lib/pm-utils/sleep.d/000kernel-change hibernate hibernate:
/usr/lib/pm-utils/sleep.d/000kernel-change hibernate hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/000record-status hibernate hibernate:
/usr/lib/pm-utils/sleep.d/000record-status hibernate hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/00logging hibernate hibernate:
Linux woem-HP-ProBook-4540s 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
GParted 显示我有 7.2 GB 的 linux-swap，这几乎是我 RAM 的两倍。
我现在该怎么办？
编辑：我打开了 pm-suspend.log 并滚动到文件底部。结果如下：
Wed Dec 21 14:04:16 IST 2016: performing hibernate
sh: echo: I/O error
Wed Dec 21 14:04:25 IST 2016: Awake.
Wed Dec 21 14:04:25 IST 2016: Running hooks for thaw
Running hook /etc/pm/sleep.d/novatel_3g_suspend thaw hibernate:
/etc/pm/sleep.d/novatel_3g_suspend thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/99video thaw hibernate:
/usr/lib/pm-utils/sleep.d/99video thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/98video-quirk-db-handler thaw hibernate:
/usr/lib/pm-utils/sleep.d/98video-quirk-db-handler thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/95led thaw hibernate:
/usr/lib/pm-utils/sleep.d/95led thaw hibernate: not applicable.
Running hook /usr/lib/pm-utils/sleep.d/95hdparm-apm thaw hibernate:
/dev/sda:
setting Advanced Power Management level to 0x80 (128)
APM_level = 128
/dev/sda:
setting standby to 36 (3 minutes)
/usr/lib/pm-utils/sleep.d/95hdparm-apm thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/95anacron thaw hibernate:
/usr/lib/pm-utils/sleep.d/95anacron thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/94cpufreq thaw hibernate:
/usr/lib/pm-utils/sleep.d/94cpufreq thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/90clock thaw hibernate:
/usr/lib/pm-utils/sleep.d/90clock thaw hibernate: not applicable.
Running hook /usr/lib/pm-utils/sleep.d/75modules thaw hibernate:
Reloaded unloaded modules.
/usr/lib/pm-utils/sleep.d/75modules thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/60_wpa_supplicant thaw hibernate:
Selected interface 'wlo1'
OK
/usr/lib/pm-utils/sleep.d/60_wpa_supplicant thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/50unload_alx thaw hibernate:
/usr/lib/pm-utils/sleep.d/50unload_alx thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/49tlp thaw hibernate:
/usr/lib/pm-utils/sleep.d/49tlp thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/40inputattach thaw hibernate:
/usr/lib/pm-utils/sleep.d/40inputattach thaw hibernate: success.
Running hook /etc/pm/sleep.d/10_unattended-upgrades-hibernate thaw hibernate:
/etc/pm/sleep.d/10_unattended-upgrades-hibernate thaw hibernate: success.
Running hook /etc/pm/sleep.d/10_grub-common thaw hibernate:
/etc/pm/sleep.d/10_grub-common thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/00powersave thaw hibernate:
/usr/lib/pm-utils/sleep.d/00powersave thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/00logging thaw hibernate:
/usr/lib/pm-utils/sleep.d/00logging thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/000record-status thaw hibernate:
/usr/lib/pm-utils/sleep.d/000record-status thaw hibernate: success.
Running hook /usr/lib/pm-utils/sleep.d/000kernel-change thaw hibernate:
/usr/lib/pm-utils/sleep.d/000kernel-change thaw hibernate: success.
Wed Dec 21 14:04:30 IST 2016: Finished.
答案1
您需要安装一些软件包，运行以下命令：
sudo apt install molly-guard
sudo apt install pm-utils
然后重新启动终端，并运行以下命令：
sudo pm-hibernate
就这样 ：）
答案2
做这个：
sudo apt-get update
sudo apt-get upgrade
然后尝试sudo pm-hibernate休眠至少需要 1-2 分钟