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笔记本电脑意外死机

tag-icon • tag-icon 14.04 thinkpad
笔记本电脑意外死机

我有一台装有 ubuntu 14.04 的联想 T540p 笔记本电脑。我已经使用了大约 2 周，它死机了 4 次（3 次屏幕变黑，1 次屏幕与我当时使用的屏幕相同）重启后，我在 kern.log 文件中发现了一些错误（上次能够找到它）。

这些是笔记本电脑冻结之前 /var/log/kern.log 中的最后日志条目。

May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522662] ata1: exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522672] ata1: irq_stat 0x00400040, connection status changed
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522679] ata1: SError: { HostInt PHYRdyChg 10B8B DevExch }
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522687] ata1: hard resetting link
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522710] ata6: exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522718] ata6: irq_stat 0x00400040, connection status changed
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522724] ata6: SError: { HostInt PHYRdyChg 10B8B DevExch }
May 23 22:12:11 maduranga-ThinkPad-T540p kernel: [44393.522733] ata6: hard resetting link
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.246738] ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.246783] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.247101] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.247103] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.247417] ata1.00: supports DRM functions and may not be fully accessible
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.248112] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.248115] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.248284] ata1.00: supports DRM functions and may not be fully accessible
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.248537] ata1.00: configured for UDMA/100
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.250996] ata6.00: ACPI cmd e3/00:1f:00:00:00:a0 (IDLE) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.252530] ata6.00: ACPI cmd e3/00:02:00:00:00:a0 (IDLE) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.262170] ata6.00: ACPI cmd e3/00:1f:00:00:00:a0 (IDLE) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.262712] ata1: EH complete
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.263819] ata6.00: ACPI cmd e3/00:02:00:00:00:a0 (IDLE) succeeded
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.266965] ata6.00: configured for UDMA/133
May 23 22:12:12 maduranga-ThinkPad-T540p kernel: [44394.282767] ata6: EH complete

有人能告诉我问题出在哪里吗？硬件问题还是软件问题？

编辑：如建议的输出lspci -k | egrep 'VGA|3D' -A2。

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
    Subsystem: Lenovo Device 2210
    Kernel driver in use: i915

答案1

在过去的两个月里，我在使用 Ubuntu 14.04 的 T540p 时也遇到了同样的问题，而我已经将内核（手动）升级到（官方）一周了。4.1.3最终问题就解决了。之前我使用的是 3.19.x。我猜是因为较新的（> 4.0.0 版本）内核对 Realtek 无线网卡的支持更好！

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