Aqui estão mais algumas informações sobre o problema de travamento das Configurações do Sistema que eu postei anteriormente ( O Ubuntu 16.04.2 trava ao abrir as configurações do sistema )
Pela primeira vez nas últimas meia dúzia de tentativas, ele não parou indefinidamente. Eu prestei muita atenção ao relógio e aqui estão as informações registradas depois que o sistema ficou pendurado por 11 segundos (22:02:46 - 22:02:57).
May 13 22:02:57 bobu2 kernel: [210990.816238] [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:29:pipe B] flip_done timed out
May 13 22:02:57 bobu2 kernel: [210990.916862] ------------[ cut here ]------------
May 13 22:02:57 bobu2 kernel: [210990.916908] WARNING: CPU: 1 PID: 921 at /build/linux-hwe-7go7JY/linux-hwe-4.8.0/drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0x1b6/0x1c0 [drm]
May 13 22:02:57 bobu2 kernel: [210990.916910] vblank wait timed out on crtc 1
May 13 22:02:57 bobu2 kernel: [210990.916912] Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace arc4 md4 nls_utf8 cifs fscache binfmt_misc snd_hda_codec_si3054 snd_hda_codec_realtek hp_wmi sparse_keymap snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq wl(POE) coretemp r852 snd_seq_device snd_timer sm_common cfg80211 nand input_leds joydev nand_ecc nand_bch serio_raw bch nand_ids mtd snd lpc_ich r592 memstick soundcore shpchp mac_hid parport_pc ppdev lp parport sunrpc autofs4 hid_logitech_hidpp hid_logitech_dj usbhid hid i915 psmouse ahci libahci i2c_algo_bit firewire_ohci drm_kms_helper firewire_core sdhci_pci sdhci crc_itu_t pata_acpi syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 drm mii wmi fjes video
May 13 22:02:57 bobu2 kernel: [210990.917034] CPU: 1 PID: 921 Comm: Xorg Tainted: P W OE 4.8.0-51-generic #54~16.04.1-Ubuntu
May 13 22:02:57 bobu2 kernel: [210990.917037] Hardware name: Hewlett-Packard HP Pavilion dv6700 Notebook PC /30CC, BIOS F.51 02/26/2008
May 13 22:02:57 bobu2 kernel: [210990.917041] 0000000000000286 00000000317da17d ffff9e6d33b57928 ffffffffbdc2e293
May 13 22:02:57 bobu2 kernel: [210990.917048] ffff9e6d33b57978 0000000000000000 ffff9e6d33b57968 ffffffffbd88314b
May 13 22:02:57 bobu2 kernel: [210990.917055] 000004c800000000 ffff9e6d34d70000 0000000000000001 0000000000000000
May 13 22:02:57 bobu2 kernel: [210990.917061] Call Trace:
May 13 22:02:57 bobu2 kernel: [210990.917071] [<ffffffffbdc2e293>] dump_stack+0x63/0x90
May 13 22:02:57 bobu2 kernel: [210990.917078] [<ffffffffbd88314b>] __warn+0xcb/0xf0
May 13 22:02:57 bobu2 kernel: [210990.917087] [<ffffffffbd8831cf>] warn_slowpath_fmt+0x5f/0x80
May 13 22:02:57 bobu2 kernel: [210990.917091] [<ffffffffbd8c6fd5>] ? finish_wait+0x55/0x70
May 13 22:02:57 bobu2 kernel: [210990.917106] [<ffffffffc0055b96>] drm_wait_one_vblank+0x1b6/0x1c0 [drm]
May 13 22:02:57 bobu2 kernel: [210990.917109] [<ffffffffbd8c7480>] ? wake_atomic_t_function+0x60/0x60
May 13 22:02:57 bobu2 kernel: [210990.917161] [<ffffffffc0222f0f>] intel_get_load_detect_pipe+0x64f/0x670 [i915]
May 13 22:02:57 bobu2 kernel: [210990.917196] [<ffffffffc025f68d>] intel_tv_detect+0x13d/0x5e0 [i915]
May 13 22:02:57 bobu2 kernel: [210990.917213] [<ffffffffc014b02c>] drm_helper_probe_single_connector_modes+0x27c/0x540 [drm_kms_helper]
May 13 22:02:57 bobu2 kernel: [210990.917217] [<ffffffffbe097ff2>] ? mutex_lock+0x12/0x30
May 13 22:02:57 bobu2 kernel: [210990.917236] [<ffffffffc00612ff>] drm_mode_getconnector+0x34f/0x3a0 [drm]
May 13 22:02:57 bobu2 kernel: [210990.917240] [<ffffffffbd8f68a6>] ? hrtimer_start_range_ns+0x1d6/0x3e0
May 13 22:02:57 bobu2 kernel: [210990.917254] [<ffffffffc0053d67>] drm_ioctl+0x1e7/0x4c0 [drm]
May 13 22:02:57 bobu2 kernel: [210990.917273] [<ffffffffc0060fb0>] ? drm_mode_getcrtc+0x140/0x140 [drm]
May 13 22:02:57 bobu2 kernel: [210990.917277] [<ffffffffbda478c1>] do_vfs_ioctl+0xa1/0x5f0
May 13 22:02:57 bobu2 kernel: [210990.917279] [<ffffffffbda47e89>] SyS_ioctl+0x79/0x90
May 13 22:02:57 bobu2 kernel: [210990.917282] [<ffffffffbe09a8b6>] entry_SYSCALL_64_fastpath+0x1e/0xa8
May 13 22:02:57 bobu2 kernel: [210990.917284] ---[ end trace bb034a4fd5a47730 ]---
May 13 22:02:57 bobu2 kernel: [210991.102054] ------------[ cut here ]------------
May 13 22:02:57 bobu2 kernel: [210991.102100] WARNING: CPU: 1 PID: 921 at /build/linux-hwe-7go7JY/linux-hwe-4.8.0/drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0x1b6/0x1c0 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102102] vblank wait timed out on crtc 1
May 13 22:02:57 bobu2 kernel: [210991.102104] Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace arc4 md4 nls_utf8 cifs fscache binfmt_misc snd_hda_codec_si3054 snd_hda_codec_realtek hp_wmi sparse_keymap snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq wl(POE) coretemp r852 snd_seq_device snd_timer sm_common cfg80211 nand input_leds joydev nand_ecc nand_bch serio_raw bch nand_ids mtd snd lpc_ich r592 memstick soundcore shpchp mac_hid parport_pc ppdev lp parport sunrpc autofs4 hid_logitech_hidpp hid_logitech_dj usbhid hid i915 psmouse ahci libahci i2c_algo_bit firewire_ohci drm_kms_helper firewire_core sdhci_pci sdhci crc_itu_t pata_acpi syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 drm mii wmi fjes video
May 13 22:02:57 bobu2 kernel: [210991.102227] CPU: 1 PID: 921 Comm: Xorg Tainted: P W OE 4.8.0-51-generic #54~16.04.1-Ubuntu
May 13 22:02:57 bobu2 kernel: [210991.102229] Hardware name: Hewlett-Packard HP Pavilion dv6700 Notebook PC /30CC, BIOS F.51 02/26/2008
May 13 22:02:57 bobu2 kernel: [210991.102233] 0000000000000286 00000000317da17d ffff9e6d33b577d8 ffffffffbdc2e293
May 13 22:02:57 bobu2 kernel: [210991.102240] ffff9e6d33b57828 0000000000000000 ffff9e6d33b57818 ffffffffbd88314b
May 13 22:02:57 bobu2 kernel: [210991.102247] 000004c833b57828 ffff9e6d34d70000 0000000000000001 0000000000000000
May 13 22:02:57 bobu2 kernel: [210991.102253] Call Trace:
May 13 22:02:57 bobu2 kernel: [210991.102263] [<ffffffffbdc2e293>] dump_stack+0x63/0x90
May 13 22:02:57 bobu2 kernel: [210991.102270] [<ffffffffbd88314b>] __warn+0xcb/0xf0
May 13 22:02:57 bobu2 kernel: [210991.102275] [<ffffffffbd8831cf>] warn_slowpath_fmt+0x5f/0x80
May 13 22:02:57 bobu2 kernel: [210991.102284] [<ffffffffbd8c6fd5>] ? finish_wait+0x55/0x70
May 13 22:02:57 bobu2 kernel: [210991.102299] [<ffffffffc0055b96>] drm_wait_one_vblank+0x1b6/0x1c0 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102302] [<ffffffffbd8c7480>] ? wake_atomic_t_function+0x60/0x60
May 13 22:02:57 bobu2 kernel: [210991.102356] [<ffffffffc021bd57>] intel_pre_plane_update+0x1a7/0x1b0 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102389] [<ffffffffc021c3e4>] intel_atomic_commit_tail+0x154/0x10a0 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102393] [<ffffffffbda0a921>] ? kmem_cache_alloc_trace+0x1a1/0x1c0
May 13 22:02:57 bobu2 kernel: [210991.102427] [<ffffffffc02254c3>] ? intel_prepare_plane_fb+0xa3/0x280 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102460] [<ffffffffc021d770>] intel_atomic_commit+0x440/0x570 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102480] [<ffffffffc006e6c7>] ? drm_atomic_check_only+0x187/0x610 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102482] [<ffffffffbd8c6fd5>] ? finish_wait+0x55/0x70
May 13 22:02:57 bobu2 kernel: [210991.102502] [<ffffffffc006eb87>] drm_atomic_commit+0x37/0x60 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102535] [<ffffffffc0222f53>] intel_release_load_detect_pipe+0x23/0x80 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102570] [<ffffffffc025f880>] intel_tv_detect+0x330/0x5e0 [i915]
May 13 22:02:57 bobu2 kernel: [210991.102587] [<ffffffffc014b02c>] drm_helper_probe_single_connector_modes+0x27c/0x540 [drm_kms_helper]
May 13 22:02:57 bobu2 kernel: [210991.102591] [<ffffffffbe097ff2>] ? mutex_lock+0x12/0x30
May 13 22:02:57 bobu2 kernel: [210991.102610] [<ffffffffc00612ff>] drm_mode_getconnector+0x34f/0x3a0 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102614] [<ffffffffbd8f68a6>] ? hrtimer_start_range_ns+0x1d6/0x3e0
May 13 22:02:57 bobu2 kernel: [210991.102628] [<ffffffffc0053d67>] drm_ioctl+0x1e7/0x4c0 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102647] [<ffffffffc0060fb0>] ? drm_mode_getcrtc+0x140/0x140 [drm]
May 13 22:02:57 bobu2 kernel: [210991.102650] [<ffffffffbda478c1>] do_vfs_ioctl+0xa1/0x5f0
May 13 22:02:57 bobu2 kernel: [210991.102653] [<ffffffffbda47e89>] SyS_ioctl+0x79/0x90
May 13 22:02:57 bobu2 kernel: [210991.102655] [<ffffffffbe09a8b6>] entry_SYSCALL_64_fastpath+0x1e/0xa8
May 13 22:02:57 bobu2 kernel: [210991.102657] ---[ end trace bb034a4fd5a47731 ]---
Isso é mais provável devido ao svideo no seu laptop.
Você pode tentar desativar o svideo com a opção de inicialização do kernel da seguinte forma:
video=SVIDEO-1:d
Se você tiver grub, pode editar o arquivo /etc/default/grub e alterar a linha:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=SVIDEO-1:d"
Em seguida, execute:
$ update-grub
$ reboot
Está a falhar no seu controlador de vídeo. Você está executando uma versão atual do Ubuntu com todas as atualizações? Você instalou algum driver de vídeo especial?
Você tem um BIOS antigo. Atualização para a versão F.5A Rev. A asap, encontrada em link
E com processadores Intel, você deve ter o intel-microcode instalado ... para garantir que você tenha o microcódigo de processador mais recente ...
Em terminal ...
sudo apt-get update
sudo apt-get install intel-microcode