Saya punya XPS dell (revisi 9550 - ini pada dasarnya adalah perangkat keras yang sama dengan Precision 5510 yang tersedia dengan Ubuntu out-of-the-box) dan luar biasa itu selalu bekerja dengan baik di luar kotak dengan 16,04. Namun dalam beberapa hari terakhir, penangguhan berhenti bekerja, saat daya baterai 1 .
Pada dasarnya laptop tampaknya ditangguhkan, tetapi ketika saya bangun, itu melewati proses boot normal.
Berikut adalah beberapa baris terakhir /var/log/syslog
dari penangguhan penebangan:
Jan 14 13:06:10 xps15-laptop whoopsie[827]: [13:06:10] offline
Jan 14 13:06:11 xps15-laptop kernel: [ 15.829125] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
Jan 14 13:06:11 xps15-laptop wpa_supplicant[1300]: nl80211: deinit ifname=p2p-dev-wlp2s0 disabled_11b_rates=0
Jan 14 13:06:11 xps15-laptop nm-dispatcher: req:3 'down' [wlp2s0]: new request (1 scripts)
Jan 14 13:06:11 xps15-laptop nm-dispatcher: req:3 'down' [wlp2s0]: start running ordered scripts...
Jan 14 13:06:11 xps15-laptop wpa_supplicant[1300]: nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
Jan 14 13:06:12 xps15-laptop systemd[1]: Reached target Sleep.
Jan 14 13:06:12 xps15-laptop systemd[1]: Starting Suspend...
Jan 14 13:06:12 xps15-laptop systemd-sleep[2271]: Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory
Jan 14 13:06:12 xps15-laptop systemd-sleep[2273]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
Jan 14 13:06:12 xps15-laptop systemd-sleep[2271]: Suspending system...
Apakah ada yang melompat keluar? Baris-baris berikut yang tampaknya hanya apa yang Anda harapkan dari boot dingin:
Jan 14 13:06:54 xps15-laptop rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="923" x-info="http://www.rsyslog.com"] start
Jan 14 13:06:54 xps15-laptop rsyslogd-2222: command 'KLogPermitNonKernelFacility' is currently not permitted - did you already set it via a RainerScript command (v6+ config)? [v8.16.0 try http
://www.rsyslog.com/e/2222 ]
Jan 14 13:06:54 xps15-laptop rsyslogd: rsyslogd's groupid changed to 109
Jan 14 13:06:54 xps15-laptop rsyslogd: rsyslogd's userid changed to 105
Jan 14 13:06:54 xps15-laptop systemd-modules-load[228]: Inserted module 'lp'
Jan 14 13:06:54 xps15-laptop systemd-modules-load[228]: Inserted module 'ppdev'
Jan 14 13:06:54 xps15-laptop systemd-modules-load[228]: Inserted module 'parport_pc'
Jan 14 13:06:54 xps15-laptop systemd[1]: Started Apply Kernel Variables.
Jan 14 13:06:54 xps15-laptop loadkeys[220]: Loading /etc/console-setup/cached.kmap.gz
Jan 14 13:06:54 xps15-laptop systemd[1]: Started Set console keymap.
Jan 14 13:06:54 xps15-laptop systemd[1]: Started Create Static Device Nodes in /dev.
Jan 14 13:06:54 xps15-laptop systemd[1]: Starting udev Kernel Device Manager...
Jan 14 13:06:54 xps15-laptop systemd[1]: Started udev Kernel Device Manager.
Jan 14 13:06:54 xps15-laptop systemd[1]: Starting Remount Root and Kernel File Systems...
Jan 14 13:06:54 xps15-laptop systemd[1]: Started Remount Root and Kernel File Systems.
Jan 14 13:06:54 xps15-laptop systemd[1]: Reached target Local File Systems (Pre).
Tidak terlalu banyak yang berubah akhir-akhir ini kecuali bahwa versi hit kernel 4.4.0-59
(sebelumnya adalah 4.4.0-57
), dan saya men-tweak opsi BIOS untuk menonaktifkan perangkat suara tertanam saya (karena dikembalikan tanpa perubahan).
Akhirnya, inilah yang terlihat seperti penangguhan / bangun yang sukses (saat menggunakan daya baterai):
Jan 14 13:15:49 xps15-laptop kernel: [ 540.190809] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
Jan 14 13:15:49 xps15-laptop wpa_supplicant[1298]: nl80211: deinit ifname=p2p-dev-wlp2s0 disabled_11b_rates=0
Jan 14 13:15:49 xps15-laptop dbus[803]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Jan 14 13:15:49 xps15-laptop systemd[1]: Reached target Sleep.
Jan 14 13:15:49 xps15-laptop systemd[1]: Starting Suspend...
Jan 14 13:15:49 xps15-laptop systemd[1]: Starting Network Manager Script Dispatcher Service...
Jan 14 13:15:49 xps15-laptop dbus[803]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jan 14 13:15:49 xps15-laptop systemd[1]: Started Network Manager Script Dispatcher Service.
Jan 14 13:15:49 xps15-laptop nm-dispatcher: req:1 'down' [wlp2s0]: new request (1 scripts)
Jan 14 13:15:49 xps15-laptop nm-dispatcher: req:1 'down' [wlp2s0]: start running ordered scripts...
Jan 14 13:15:49 xps15-laptop wpa_supplicant[1298]: nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
Jan 14 13:15:54 xps15-laptop whoopsie[931]: [13:15:54] Cannot reach: https://daisy.ubuntu.com
Jan 14 13:15:54 xps15-laptop whoopsie[931]: [13:15:54] offline
Jan 14 13:15:54 xps15-laptop whoopsie[931]: [13:15:54] Cannot reach: https://daisy.ubuntu.com
Jan 14 13:15:59 xps15-laptop systemd-sleep[2690]: Selected interface 'wlp2s0'
Jan 14 13:15:59 xps15-laptop systemd-sleep[2690]: 'SUSPEND' command timed out.
Jan 14 13:15:59 xps15-laptop systemd-sleep[2696]: /lib/systemd/system-sleep/wpasupplicant failed with error code 254.
Jan 14 13:15:59 xps15-laptop systemd-sleep[2690]: Suspending system...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.254337] PM: Syncing filesystems ... done.
Jan 14 13:16:52 xps15-laptop kernel: [ 550.268354] PM: Preparing system for sleep (mem)
Jan 14 13:16:52 xps15-laptop kernel: [ 550.268979] Freezing user space processes ... (elapsed 0.002 seconds) done.
Jan 14 13:16:52 xps15-laptop kernel: [ 550.271751] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Jan 14 13:16:52 xps15-laptop kernel: [ 550.273159] PM: Suspending system (mem)
Jan 14 13:16:52 xps15-laptop kernel: [ 550.273197] Suspending console(s) (use no_console_suspend to debug)
Jan 14 13:16:52 xps15-laptop kernel: [ 550.486068] brcmf_fil_cmd_data: bus is down. we have nothing to do.
Jan 14 13:16:52 xps15-laptop kernel: [ 550.613975] nouveau 0000:01:00.0: DRM: resuming kernel object tree...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.717482] nouveau 0000:01:00.0: priv: HUB0: 10ecc0 ffffffff (1d40822c)
Jan 14 13:16:52 xps15-laptop kernel: [ 550.764382] nouveau 0000:01:00.0: DRM: resuming client object trees...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.764397] nouveau 0000:01:00.0: DRM: evicting buffers...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.764398] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.764412] nouveau 0000:01:00.0: DRM: suspending client object trees...
Jan 14 13:16:52 xps15-laptop kernel: [ 550.765770] nouveau 0000:01:00.0: DRM: suspending kernel object tree...
Jan 14 13:16:52 xps15-laptop kernel: [ 551.638247] PM: suspend of devices complete after 1155.310 msecs
Jan 14 13:16:52 xps15-laptop kernel: [ 551.654829] PM: late suspend of devices complete after 16.561 msecs
Jan 14 13:16:52 xps15-laptop kernel: [ 551.656867] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI
Jan 14 13:16:52 xps15-laptop kernel: [ 551.671878] PM: noirq suspend of devices complete after 17.027 msecs
Jan 14 13:16:52 xps15-laptop kernel: [ 551.672619] ACPI: Preparing to enter system sleep state S3
Jan 14 13:16:52 xps15-laptop kernel: [ 551.695080] ACPI : EC: EC stopped
Jan 14 13:16:52 xps15-laptop kernel: [ 551.695082] PM: Saving platform NVS memory
Perhatikan bahwa beberapa pesan "setelah" bangun (mulai dari 13:16:52
) tampaknya benar-benar terkait dengan tindakan yang mengarah ke penangguhan. Saya kira fasilitas logging dimatikan pada beberapa titik selama penangguhan sehingga pesan setelah titik itu muncul hanya setelah bangun (jadi saya tidak bisa melihat ini dalam kasus gagal).
1 Secara khusus, penangguhan berfungsi dengan baik jika laptop menggunakan daya AC selama seluruh proses yang dicurigai - pada titik penangguhan, pada titik bangun dan sepanjang waktu di antaranya. Cukup mencabut adaptor AC, bahkan untuk sesaat, sementara tuan rumah tidur akan menyebabkan kegagalan yang dijelaskan di atas.