我有一台东芝 L845，当我暂停 ubuntu 时，它会在 2 秒后唤醒。以下是一些信息。
猫/ proc /命令
BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed root=UUID=80498f02-8962-4085-81f7-7e01fbc494fc ro quiet splash intel_pstate=enable vt.handoff=7
请参阅lspci-k | grep -iA2 VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
Subsystem: Toshiba America Info Systems Radeon HD 7670M
Kernel driver in use: fglrx_pci
cat /var/log/syslog | grep PM：
Jun 12 18:38:58 amrras-pc kernel: [ 8765.969162] PM: Syncing filesystems ... done.
Jun 12 18:38:58 amrras-pc kernel: [ 8766.110230] PM: Preparing system for mem sleep
Jun 12 18:38:58 amrras-pc kernel: [ 8766.113428] PM: Entering mem sleep
Jun 12 18:38:58 amrras-pc kernel: [ 8768.119383] PM: suspend of devices complete after 2009.020 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8768.119501] PM: late suspend of devices complete after 0.117 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8768.197198] PM: noirq suspend of devices complete after 77.819 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8768.197824] PM: Saving platform NVS memory
Jun 12 18:38:58 amrras-pc kernel: [ 8768.823061] PM: Restoring platform NVS memory
Jun 12 18:38:58 amrras-pc kernel: [ 8769.069601] PM: noirq resume of devices complete after 125.436 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8769.069725] PM: early resume of devices complete after 0.099 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8771.333504] PM: resume of devices complete after 2267.391 msecs
Jun 12 18:38:58 amrras-pc kernel: [ 8771.333680] PM: Finishing wakeup.
Jun 12 18:40:15 amrras-pc kernel: [ 8839.193188] PM: Syncing filesystems ... done.
Jun 12 18:40:15 amrras-pc kernel: [ 8839.378479] PM: Preparing system for mem sleep
Jun 12 18:40:15 amrras-pc kernel: [ 8839.381667] PM: Entering mem sleep
Jun 12 18:40:15 amrras-pc kernel: [ 8841.444678] PM: suspend of devices complete after 2064.091 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8841.444833] PM: late suspend of devices complete after 0.152 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8841.524584] PM: noirq suspend of devices complete after 79.797 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8841.525148] PM: Saving platform NVS memory
Jun 12 18:40:15 amrras-pc kernel: [ 8842.253549] PM: Restoring platform NVS memory
Jun 12 18:40:15 amrras-pc kernel: [ 8842.501780] PM: noirq resume of devices complete after 127.505 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8842.501902] PM: early resume of devices complete after 0.097 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8844.770332] PM: resume of devices complete after 2269.779 msecs
Jun 12 18:40:15 amrras-pc kernel: [ 8844.770548] PM: Finishing wakeup.
Jun 12 18:46:17 amrras-pc kernel: [ 9194.444252] PM: Syncing filesystems ... done.
Jun 12 18:46:17 amrras-pc kernel: [ 9194.616654] PM: Preparing system for mem sleep
Jun 12 18:46:17 amrras-pc kernel: [ 9194.619833] PM: Entering mem sleep
Jun 12 18:46:17 amrras-pc kernel: [ 9196.628265] PM: suspend of devices complete after 2010.496 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9196.628390] PM: late suspend of devices complete after 0.123 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9196.706763] PM: noirq suspend of devices complete after 78.457 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9196.707303] PM: Saving platform NVS memory
Jun 12 18:46:17 amrras-pc kernel: [ 9197.435387] PM: Restoring platform NVS memory
Jun 12 18:46:17 amrras-pc kernel: [ 9197.683504] PM: noirq resume of devices complete after 127.185 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9197.683623] PM: early resume of devices complete after 0.096 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9199.950284] PM: resume of devices complete after 2269.140 msecs
Jun 12 18:46:17 amrras-pc kernel: [ 9199.950520] PM: Finishing wakeup.
最后：
pastebinit /var/log/pm-suspend.log 关联
我也发现了这种行为：
在 AC 模式下，如果我禁用蓝牙，系统就会暂停（我尝试了几次）在电池模式下，它总是可以正常工作。
我真不明白发生了什么事。
PD：抱歉我的英语不好
谢谢
更新!!!!!!!!!!!!!!!!!!!!!!!! 好吧，似乎一切都是随机的。然后我做的另一件事是：
我意识到 acpitool 可以改变设备不从挂起状态唤醒（根据我读到的内容）
前
Device S-state Status Sysfs node
---------------------------------------
1. P0P1 S4 *disabled
2. GLAN S0 *disabled
3. EHC1 S3 *enabled pci:0000:00:1d.0
4. EHC2 S3 *enabled pci:0000:00:1a.0
5. XHC S3 *enabled pci:0000:00:14.0
6. HDEF S0 *disabled pci:0000:00:1b.0
7. RP01 S4 *disabled pci:0000:00:1c.0
8. RP02 S4 *disabled
9. PXSX S4 *disabled
10. FRES S0 *disabled
11. RP03 S0 *disabled pci:0000:00:1c.2
12. PXSX S4 *disabled pci:0000:08:00.0
13. RP04 S4 *disabled pci:0000:00:1c.3
14. PXSX S4 *enabled pci:0000:09:00.0
15. ATHE S4 *disabled
16. RP05 S4 *disabled
17. PXSX S4 *disabled
18. RP06 S4 *disabled
19. PXSX S4 *disabled
20. RP07 S4 *disabled
21. PXSX S4 *disabled
22. RP08 S4 *disabled
23. PXSX S4 *disabled
24. PEG0 S4 *disabled pci:0000:00:01.0
25. PEGP S4 *disabled
26. PEG1 S4 *disabled
27. PEG2 S4 *disabled
28. PEG3 S4 *disabled
29. LID S4 *enabled
执行此命令后：acpitool -W 5
使用 lspic 我发现设备 3,4,5 是：00：1d.0 USB 控制器：英特尔公司 7 系列/C210 系列芯片组系列 USB 增强型主机控制器 #1（修订版 04）00：1a.0 USB 控制器：英特尔公司 7 系列/C210 系列芯片组系列 USB 增强型主机控制器 #2（修订版 04）00：14.0 USB 控制器：英特尔公司 7 系列/C210 系列芯片组系列 USB xHCI 主机控制器（修订版 04）
Device S-state Status Sysfs node
---------------------------------------
1. P0P1 S4 *disabled
2. GLAN S0 *disabled
3. EHC1 S3 *disabled pci:0000:00:1d.0
4. EHC2 S3 *disabled pci:0000:00:1a.0
5. XHC S3 *disabled pci:0000:00:14.0
6. HDEF S0 *disabled pci:0000:00:1b.0
7. RP01 S4 *disabled pci:0000:00:1c.0
8. RP02 S4 *disabled
9. PXSX S4 *disabled
10. FRES S0 *disabled
11. RP03 S0 *disabled pci:0000:00:1c.2
12. PXSX S4 *disabled pci:0000:08:00.0
13. RP04 S4 *disabled pci:0000:00:1c.3
14. PXSX S4 *enabled pci:0000:09:00.0
15. ATHE S4 *disabled
16. RP05 S4 *disabled
17. PXSX S4 *disabled
18. RP06 S4 *disabled
19. PXSX S4 *disabled
20. RP07 S4 *disabled
21. PXSX S4 *disabled
22. RP08 S4 *disabled
23. PXSX S4 *disabled
24. PEG0 S4 *disabled pci:0000:00:01.0
25. PEGP S4 *disabled
26. PEG1 S4 *disabled
27. PEG2 S4 *disabled
28. PEG3 S4 *disabled
29. LID S4 *enabled
我不喜欢这个解决方案，但这是我目前所拥有的。我不知道如何使此设置永久生效，因为重启后我丢失了更改。有什么想法吗？我担心会有任何副作用
再次感谢
马丁