我把定时器设置为 5 分钟。当它关闭显示屏时，（我的）用户输入不会唤醒它。
奇怪的是，我的显示器可以打开，但屏幕会保持黑色。我的一个朋友使用 AnyDesk 远程控制它，我们确认我的输入有效。我在屏幕黑屏时输入了密码并登录，而他仍然通过 AnyDesk 连接，他仍然能够移动我的鼠标并捕获此日志文件。
我的规格：
AMD® Ryzen 7 1700x eight-core processor × 16
Radeon RX Vega 64 (VEGA10, DRM 3.26.0, 4.18.0-17-generic, LLVM 7.0.0)
Motherboard is a MSI x370 Pro Carbon Gaming
另外，我无法安装官方的 Vega 64 驱动程序。重启后，系统黑屏，我不得不使用 TimeShift 才能恢复运行。
以下是日志：
Apr 14 15:56:42 ubuntu gnome-shell[2511]: clutter_actor_remove_child: assertion 'child->priv->parent != NULL' failed
Apr 14 15:56:42 ubuntu gnome-shell[2511]: Extension "[email protected]" had error: TypeError: global.screen is undefined
Apr 14 15:56:42 ubuntu kernel: [ 381.855417] [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT timeout 10us * 3500 tries - dce_mi_free_dmif line:636
Apr 14 15:56:42 ubuntu kernel: [ 381.855499] WARNING: CPU: 10 PID: 2273 at drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:254 generic_reg_wait+0xe4/0x160 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855500] Modules linked in: nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi edac_mce_amd mt7662u_sta(OE) snd_seq kvm_amd snd_seq_device snd_timer kvm cfg80211 irqbypass wmi_bmof k10temp snd input_leds joydev soundcore ccp mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear system76_io(OE) hid_generic usbhid hid amdkfd amd_iommu_v2 amdgpu chash gpu_sched ttm crct10dif_pclmul drm_kms_helper crc32_pclmul ghash_clmulni_intel syscopyarea pcbc sysfillrect sysimgblt mxm_wmi fb_sys_fops drm aesni_intel aes_x86_64 crypto_simd
Apr 14 15:56:42 ubuntu kernel: [ 381.855534] cryptd glue_helper nvme igb i2c_piix4 nvme_core ahci dca i2c_algo_bit libahci gpio_amdpt wmi gpio_generic
Apr 14 15:56:42 ubuntu kernel: [ 381.855543] CPU: 10 PID: 2273 Comm: Xorg Tainted: G W OE 4.18.0-17-generic #18-Ubuntu
Apr 14 15:56:42 ubuntu kernel: [ 381.855544] Hardware name: Micro-Star International Co., Ltd. MS-7A32/X370 GAMING PRO CARBON (MS-7A32), BIOS 1.L0 01/21/2019
Apr 14 15:56:42 ubuntu kernel: [ 381.855597] RIP: 0010:generic_reg_wait+0xe4/0x160 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855598] Code: a9 44 8b 45 20 48 8b 4d 18 89 de 44 89 4d d4 8b 55 10 48 c7 c7 10 24 89 c0 e8 58 67 e1 ff 41 83 7c 24 20 01 44 8b 4d d4 74 02 <0f> 0b 48 83 c4 18 44 89 c8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 41 0f
Apr 14 15:56:42 ubuntu kernel: [ 381.855621] RSP: 0018:ffffb89803f6b7f0 EFLAGS: 00010297
Apr 14 15:56:42 ubuntu kernel: [ 381.855622] RAX: 0000000000000000 RBX: 000000000000000a RCX: 0000000000000000
Apr 14 15:56:42 ubuntu kernel: [ 381.855623] RDX: 0000000000000000 RSI: ffff9ab5dee964b8 RDI: ffff9ab5dee964b8
Apr 14 15:56:42 ubuntu kernel: [ 381.855624] RBP: ffffb89803f6b830 R08: 00000000000d0d79 R09: 0000000000000002
Apr 14 15:56:42 ubuntu kernel: [ 381.855625] R10: 0000000000000004 R11: ffffffff9978880d R12: ffff9ab5bfe58d00
Apr 14 15:56:42 ubuntu kernel: [ 381.855626] R13: 0000000000000dad R14: 0000000000000010 R15: 0000000000000001
Apr 14 15:56:42 ubuntu kernel: [ 381.855627] FS: 00007f3c11ae0a80(0000) GS:ffff9ab5dee80000(0000) knlGS:0000000000000000
Apr 14 15:56:42 ubuntu kernel: [ 381.855628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 14 15:56:42 ubuntu kernel: [ 381.855629] CR2: 00005570d446d2b0 CR3: 0000000401cdc000 CR4: 00000000003406e0
Apr 14 15:56:42 ubuntu kernel: [ 381.855630] Call Trace:
Apr 14 15:56:42 ubuntu kernel: [ 381.855692] dce_mi_free_dmif+0xfb/0x190 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855748] dce110_reset_hw_ctx_wrap+0x151/0x1e0 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855803] dce110_apply_ctx_to_hw+0x52/0xa30 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855847] ? amdgpu_pm_compute_clocks+0x17/0x20 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855902] ? pplib_apply_display_requirements+0x1c3/0x1d0 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.855957] ? dce110_set_bandwidth+0x1d2/0x200 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856011] dc_commit_state+0x306/0x5b0 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856063] ? dc_stream_get_vblank_counter+0x57/0x60 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856076] ? drm_calc_timestamping_constants+0x109/0x150 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856134] ? dal_irq_service_set_generic+0x5b/0x70 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856192] amdgpu_dm_atomic_commit_tail+0x395/0xe80 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856196] ? _cond_resched+0x19/0x30
Apr 14 15:56:42 ubuntu kernel: [ 381.856198] ? wait_for_completion_timeout+0x38/0x140
Apr 14 15:56:42 ubuntu kernel: [ 381.856200] ? _cond_resched+0x19/0x30
Apr 14 15:56:42 ubuntu kernel: [ 381.856202] ? wait_for_completion_interruptible+0x35/0x1a0
Apr 14 15:56:42 ubuntu kernel: [ 381.856210] commit_tail+0x42/0x70 [drm_kms_helper]
Apr 14 15:56:42 ubuntu kernel: [ 381.856217] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper]
Apr 14 15:56:42 ubuntu kernel: [ 381.856275] amdgpu_dm_atomic_commit+0x8d/0xa0 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856289] drm_atomic_commit+0x4a/0x50 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856303] drm_atomic_connector_commit_dpms+0xe0/0x100 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856315] drm_mode_obj_set_property_ioctl+0x187/0x2b0 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856329] ? drm_mode_connector_set_obj_prop+0x90/0x90 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856342] drm_mode_connector_property_set_ioctl+0x3b/0x60 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856353] drm_ioctl_kernel+0xa4/0xf0 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856364] drm_ioctl+0x227/0x400 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856377] ? drm_mode_connector_set_obj_prop+0x90/0x90 [drm]
Apr 14 15:56:42 ubuntu kernel: [ 381.856381] ? ep_modify+0x160/0x160
Apr 14 15:56:42 ubuntu kernel: [ 381.856422] amdgpu_drm_ioctl+0x4f/0x90 [amdgpu]
Apr 14 15:56:42 ubuntu kernel: [ 381.856425] do_vfs_ioctl+0xa8/0x620
Apr 14 15:56:42 ubuntu kernel: [ 381.856429] ? __sys_recvmsg+0x88/0xa0
Apr 14 15:56:42 ubuntu kernel: [ 381.856431] ksys_ioctl+0x67/0x90
Apr 14 15:56:42 ubuntu kernel: [ 381.856433] __x64_sys_ioctl+0x1a/0x20
Apr 14 15:56:42 ubuntu kernel: [ 381.856436] do_syscall_64+0x5a/0x110
Apr 14 15:56:42 ubuntu kernel: [ 381.856438] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Apr 14 15:56:42 ubuntu kernel: [ 381.856439] RIP: 0033:0x7f3c12e173c7
Apr 14 15:56:42 ubuntu kernel: [ 381.856440] Code: 00 00 90 48 8b 05 c9 3a 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 3a 0d 00 f7 d8 64 89 01 48
Apr 14 15:56:42 ubuntu kernel: [ 381.856462] RSP: 002b:00007fff3432d9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Apr 14 15:56:42 ubuntu kernel: [ 381.856464] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3c12e173c7
Apr 14 15:56:42 ubuntu kernel: [ 381.856464] RDX: 00007fff3432da20 RSI: 00000000c01064ab RDI: 000000000000000d
Apr 14 15:56:42 ubuntu kernel: [ 381.856465] RBP: 00007fff3432da20 R08: 00007fff3432d9c0 R09: 00007fff3432d9bc
Apr 14 15:56:42 ubuntu kernel: [ 381.856466] R10: 002fd0ff3e8ab668 R11: 0000000000000246 R12: 00000000c01064ab
Apr 14 15:56:42 ubuntu kernel: [ 381.856467] R13: 000000000000000d R14: 000055e6875029c0 R15: 0000000000000000
Apr 14 15:56:42 ubuntu kernel: [ 381.856469] ---[ end trace 11fd32ca95ff5c91 ]---