我有一台東芝 L845，當我暫停 ubuntu 時，它會在 2 秒後喚醒。這是一些資訊。
貓 /proc/cmdline
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
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
貓 /var/log/syslog | grep 下午：
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.
最後：
Pastebinit /var/log/pm-suspend.log 關聯
我也發現了這種行為：
在交流模式下，如果我停用藍牙，系統會正常掛起（我嘗試了幾次）在電池模式下，它總是可以正常工作。
我真的不明白發生了什麼事。
PD：對不起我的英語
謝謝
更新！嗯，看來一切都是隨機的。然後我做的另一件事是：
我意識到 acpitool 可以更改設備，使其不從掛起狀態喚醒（根據我讀到的內容）
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
執行此指令後：acpitool -W 5
使用lspic 我發現裝置3,4,5 為： 00:1d.0 USB 控制器：Intel Corporation 7 系列/C210 系列晶片組系列USB 增強型主機控制器#1 (rev 04) 00:1a.0 USB 控制器：Intel Corporation 7 系列/C210 系列晶片組系列USB 增強型主機控制器#2（修訂版04） 00:14.0 USB 控制器：Intel Corporation 7 系列/C210 系列晶片組系列USB xHCI 主機控制器（修訂版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
我不喜歡這個解決方案，但這是我現在所擁有的。我不知道如何使此設定永久生效，因為重新啟動後我丟失了更改。任何想法？我怕有什麼副作用
再次感謝
馬丁