我的 ubuntu 14.04 无法进入睡眠状态。我不确定这是在系统从 13 升级后发生的还是其他原因。
我尝试了一些解决方案，包括创建断开 USB 端口、SSD 硬盘的脚本……但都没有起作用。
我该怎么做才能开始识别问题？
编辑
真的很抱歉，我忘记添加我在准备问题时想到的细节了……当我在系统菜单中单击“暂停”或关闭盖子时，就会发生这种情况。它进入睡眠状态，但随后立即唤醒，并显示“检测到早期唤醒事件”之类的消息
感谢您的回答和评论，以下是lspci -nn
julien@venus:~$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port [8086:0151] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (rev c4)
00:1c.2 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 [8086:1e14] (rev c4)
00:1c.3 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 [8086:1e16] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation HM77 Express Chipset LPC Controller [8086:1e57] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller [8086:1e22] (rev 04)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 635M] [10de:0de3] (rev a1)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)
03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2230 [8086:0888] (rev c4)
0c:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 07)
答案1
lspci根据您的输出，您的系统似乎有一个专用的视频卡：
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 635M] [10de:0de3] (rev a1)
有时这些视频卡需要额外的驱动程序才能使其在暂停状态下工作。
请在仪表盘中搜索“驱动程序”来安装专有驱动程序：
并从中安装 nvidia 驱动程序。
更具体地说，您可以dmesg在挂起失败后检查输出，您可能会看到一些消息，例如“挂起失败”。它可能会告诉您哪个设备导致了此问题。
答案2
您可能遇到了与暂停相关的已知错误。您可以阅读这是相当容易遵循的指南这似乎已经为大多数人修复了这个错误。
希望这对你有帮助。