我刚买了一台新笔记本电脑，并且同时启动了 Ubuntu 12.04 和 Windows 7。两者都运行良好，但我注意到一段时间后 Ubuntu 毫无错误地挂起了，并且所有按键和鼠标移动/点击都停止了工作。
知道如何修复这个问题吗？
Xorg 错误日志：
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 20.580] (==) Log file: "/var/log/Xorg.0.log", Time: Sun Oct 28 11:26:05 2012
[ 20.596] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 20.596] (==) No Layout section. Using the first Screen section.
[ 20.596] (==) No screen section available. Using defaults.
[ 20.596] (**) |-->Screen "Default Screen Section" (0)
[ 20.596] (**) | |-->Monitor "<default monitor>"
[ 20.597] (==) No monitor specified for screen "Default Screen Section".
kern 错误日志：
Oct 28 11:23:21 carbuncle kernel: [ 1.031854] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d
Oct 28 11:23:21 carbuncle kernel: [ 1.031856] ACPI _OSC control for PCIe not granted, disabling ASPM
Oct 28 11:23:21 carbuncle kernel: [ 1.034229] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15)
Oct 28 11:23:21 carbuncle kernel: [ 1.034268] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 11 12 14 15) *7
Oct 28 11:23:21 carbuncle kernel: [ 1.034305] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 10 *11 12 14 15)
Oct 28 11:23:21 carbuncle kernel: [ 1.034340] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 10 11 12 14 15) *7
Oct 28 11:23:21 carbuncle kernel: [ 1.034376] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
Oct 28 11:23:21 carbuncle kernel: [ 1.034411] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
Oct 28 11:23:21 carbuncle kernel: [ 1.034447] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 *10 11 12 14 15)
Oct 28 11:23:21 carbuncle kernel: [ 1.034483] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 *10 11 12 14 15)...
Oct 28 11:23:21 carbuncle kernel: [ 26.656721] EXT4-fs (sda3): re-mounted. Opts: errors=remount-ro
Oct 28 11:23:21 carbuncle kernel: [ 26.661224] [drm] Initialized drm 1.1.0 20060810
Oct 28 11:23:21 carbuncle kernel: [ 26.674172] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP handle
Oct 28 11:23:21 carbuncle kernel: [ 26.675011] nouveau 0000:01:00.0: power state changed by ACPI to D0
Oct 28 11:23:21 carbuncle kernel: [ 26.675022] nouveau 0000:01:00.0: power state changed by ACPI to D0
Oct 28 11:23:21 carbuncle kernel: [ 26.675026] nouveau 0000:01:00.0: enabling device (0000 -> 0003)
Oct 28 11:23:21 carbuncle kernel: [ 26.675032] nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Oct 28 11:23:21 carbuncle kernel: [ 26.675039] nouveau 0000:01:00.0: setting latency timer to 64...
Oct 28 11:23:25 carbuncle kernel: [ 30.425810] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed
Oct 28 11:23:25 carbuncle kernel: [ 30.425813] vga_switcheroo: enabled
Oct 28 11:23:25 carbuncle kernel: [ 30.426332] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=none
Oct 28 11:23:25 carbuncle kernel: [ 30.426334] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem
Oct 28 11:23:25 carbuncle kernel: [ 31.027045] fbcon: inteldrmfb (fb1) is primary device
Oct 28 11:23:25 carbuncle kernel: [ 31.027048] fbcon: Remapping primary device, fb1, to tty 1-63
Oct 28 11:23:26 carbuncle kernel: [ 31.199881] fb1: inteldrmfb frame buffer device
...
Oct 28 11:26:04 carbuncle kernel: [ 1.031818] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d
Oct 28 11:26:04 carbuncle kernel: [ 1.031819] ACPI _OSC control for PCIe not granted, disabling ASPM
Oct 28 11:26:04 carbuncle kernel: [ 1.034198] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15)
Oct 28 11:26:04 carbuncle kernel: [ 1.034237] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 11 12 14 15) *7
Oct 28 11:26:04 carbuncle kernel: [ 1.034274] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 10 *11 12 14 15)
Oct 28 11:26:04 carbuncle kernel: [ 1.034310] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 10 11 12 14 15) *7
Oct 28 11:26:04 carbuncle kernel: [ 1.034345] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
Oct 28 11:26:04 carbuncle kernel: [ 1.034382] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
Oct 28 11:26:04 carbuncle kernel: [ 1.034418] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 *10 11 12 14 15)
Oct 28 11:26:04 carbuncle kernel: [ 1.034454] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 *10 11 12 14 15)...
Oct 28 11:26:04 carbuncle kernel: [ 18.498620] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed
Oct 28 11:26:04 carbuncle kernel: [ 18.498993] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem
Oct 28 11:26:04 carbuncle kernel: [ 18.498996] vgaarb: transferring owner from PCI:0000:00:02.0 to PCI:0000:01:00.0
Oct 28 11:26:04 carbuncle kernel: [ 18.524928] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
Oct 28 11:26:04 carbuncle kernel: [ 18.525636] Registered led device: ath9k-phy0
Oct 28 11:26:04 carbuncle kernel: [ 18.525643] ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xffffc900057e0000, irq=18
Oct 28 11:26:04 carbuncle kernel: [ 18.527229] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP handle
...
Oct 28 11:26:04 carbuncle kernel: [ 18.700550] EXT4-fs (sda3): re-mounted. Opts: errors=remount-ro
Oct 28 11:26:04 carbuncle kernel: [ 18.831907] init: failsafe main process (923) killed by TERM signal
Oct 28 11:26:04 carbuncle kernel: [ 18.888092] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Oct 28 11:26:04 carbuncle kernel: [ 18.888096] Bluetooth: BNEP filters: protocol multicast
Oct 28 11:26:04 carbuncle kernel: [ 18.895745] Bluetooth: RFCOMM TTY layer initialized
Oct 28 11:26:04 carbuncle kernel: [ 18.895750] Bluetooth: RFCOMM socket layer initialized
Oct 28 11:26:04 carbuncle kernel: [ 18.895752] Bluetooth: RFCOMM ver 1.11...
禁用 NVIDIA 驱动程序后出现的最新错误：
Dec 26 20:08:42 carbuncle kernel: [ 129.894342] ACPI Error: Method parse/execution failed [\_SB_.WADR] (Node ffff880211865e60), AE_AML_INFINITE_LOOP (20110623/psparse-536)
Dec 26 20:08:42 carbuncle kernel: [ 129.894361] ACPI Error: Method parse/execution failed [\_SB_.BAT1.UPBI] (Node ffff8802118660a0), AE_AML_INFINITE_LOOP (20110623/psparse-536)
Dec 26 20:08:42 carbuncle kernel: [ 129.894373] ACPI Error: Method parse/execution failed [\_SB_.BAT1._BIF] (Node ffff880211866050), AE_AML_INFINITE_LOOP (20110623/psparse-536)
Dec 26 20:08:42 carbuncle kernel: [ 129.894389] ACPI Exception: AE_AML_INFINITE_LOOP, Evaluating _BIF (20110623/battery-419)
Dec 26 20:08:42 carbuncle kernel: [ 129.894396] ACPI: Battery Slot [BAT1] (battery present)
答案1
我想看看是内核（或内核级进程）还是 XServer 出了问题。看来您使用的是 NVidia 卡和 Nouveau 驱动程序，它们是开源驱动程序。
我也在 HTPC 中使用了这些显卡和新的 NVIDIA 630，但它给我带来了冻结问题（主要是在睡眠恢复时，因为我没有集成显卡可以切换）。在我的笔记本电脑上，我使用的是集成英特尔的 Optimus（如果您添加了显卡，设置与高端 z480 类似，看来您确实添加了）。
话虽如此，我有两个解决方案可能有效（或至少可以缩小问题范围）。内核日志看起来好像发生的一切是在 VGA 状态切换期间发生的（可能是尝试从 Intel 切换到 NVidia 或反之亦然）。
只要尝试你喜欢的任何一种方式大约一天，看看你是否继续遇到冻结：
1) 删除所有 nouveau 驱动程序的痕迹并安装官方 nvidia 驱动程序（我相信在 Ubuntu 中应该允许，只需检查 Synaptic 包管理器即可）。这可能是切换故障，这对于 Linux 来说相对较新。
或者
2) 在您的 Bios 中，禁用 NVIDIA 卡并仅在 Linux 中允许集成（仅用于测试）。
这可以帮助您缩小范围，确定是驱动程序还是卡（可能是驱动程序）。在 Bios 中禁用它后，您会注意到电池电量大幅增加。我在 Arch 下的联想 T530 上就遇到了这种情况。Linux 在图形切换方面已经达到了这一水平，但目前还不是 100% 的故障安全。
资源：
1：此人想删除所有 Nouveau
2：此人想安装最新的 Nvidia 官方驱动程序
sudo apt-get 安装 nvidia-current