Ubuntu 16.04 で x230 がスリープしない

linux

原因

Jun  3 04:14:22 x230 kernel: [ 1785.787010] pci_pm_suspend(): e1000e_pm_suspend+0x0/0x40 [e1000e] returns -2
Jun  3 04:14:22 x230 kernel: [ 1785.787013] dpm_run_callback(): pci_pm_suspend+0x0/0x140 returns -2
Jun  3 04:14:22 x230 kernel: [ 1785.787015] PM: Device 0000:00:19.0 failed to suspend async: error -2
Jun  3 04:14:22 x230 kernel: [ 1785.787049] PM: Some devices failed to suspend, or early wake event detected

ウェブで調べたところ最新の Intel のドライバを入れるのが正しそう。

$ lspci
...
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)

https://downloadcenter.intel.com/ja/search?keyword=82579LM

からソースコードを取得して sudo make install、 再起動