我最近刚刚在笔记本电脑上安装了 ubuntu 11.10。一切运行正常，但是当我将其休眠时，屏幕变黑，但仍然背光，并且 CPU 仍在运行。我该如何解决这个问题？
答案1
我有同样的问题（休眠/挂起），此解决方案适用于我的 Asus K53E（我使用步骤 2，而不是旧的步骤 2）：
祝你好运！
答案2
更新：
请参阅@PierreLachance 的回答 - 解决了这个问题
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有（可能）相同的问题，相同的笔记本电脑型号。休眠会保存到磁盘，但不会关机。不是必需的，但很烦人。
最新的 Ubuntu 11.10
uname -a：
Linux sphinx 3.0.0-16-generic-pae #29-Ubuntu SMP Tue Feb 14 13:56:31 UTC 2012 i686 i686 i386 GNU/Linux
硬件：
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 100
03:00.0 USB Controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
04:00.0 Ethernet controller: Atheros Communications AR8151 v2.0 Gigabit Ethernet (rev c0)
适当的 dmesg 部分：
[26766.181283] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro,commit=0
[26767.748879] PM: Marking nosave pages: 000000000009e000 - 0000000000100000
[26767.748884] PM: Marking nosave pages: 0000000020000000 - 0000000020200000
[26767.748893] PM: Basic memory bitmaps created
[26767.748895] PM: Syncing filesystems ... done.
[26767.830587] Freezing user space processes ... (elapsed 0.01 seconds) done.
[26767.846787] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
[26767.863074] PM: Preallocating image memory... done (allocated 447521 pages)
[26768.104837] PM: Allocated 1790084 kbytes in 0.24 seconds (7458.68 MB/s)
[26768.104840] Suspending console(s) (use no_console_suspend to debug)
[26768.104992] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[26768.314611] HDA Intel 0000:00:1b.0: PCI INT A disabled
[26768.330225] PM: freeze of drv:HDA Intel dev:0000:00:1b.0 complete after 224.511 msecs
[26768.330348] PM: freeze of drv: dev:pci0000:00 complete after 224.602 msecs
[26768.330354] PM: freeze of devices complete after 225.759 msecs
[26768.330842] PM: late freeze of devices complete after 0.485 msecs
[26768.331004] ACPI: Preparing to enter system sleep state S4
[26768.358785] PM: Saving platform NVS memory
[26768.359471] Disabling non-boot CPUs ...
[26768.462072] CPU 1 is now offline
[26768.462411] Extended CMOS year: 2000
[26768.462493] PM: Creating hibernation image:
[26768.579475] PM: Need to copy 446872 pages
[26768.579478] PM: Normal pages needed: 79729 + 1024, available pages: 147880
[26768.462518] PM: Restoring platform NVS memory
[26768.462926] Extended CMOS year: 2000
[26768.462951] Enabling non-boot CPUs ...
[26768.463042] Booting Node 0 Processor 1 APIC 0x2
[26768.463044] smpboot cpu 1: start_ip = 9a000
[26768.473225] Initializing CPU#1
[26768.571086] CPU1 is up
[26768.572285] ACPI: Waking up from system sleep state S4
[26768.574459] Switched to NOHz mode on CPU #1
在将系统状态写入磁盘和唤醒之间似乎没有记录任何问题。正常关机可以正常工作。