在最近对 21.10 进行更新后（不确定是否是这个原因导致的，猜测是，几天前它一直运行良好，似乎是在更新之后），暂停功能不起作用。显示器变暗，就是这样。如果不重启就无法恢复。
Dmesg 给出：
[13659.802135] Freezing user space processes ...
[13679.807380] Freezing of tasks failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0):
[13679.807401] task:Xorg state:D stack: 0 pid: 1961 ppid: 1952 flags:0x00400004
[13679.807406] Call Trace:
[13679.807408] <TASK>
[13679.807412] __schedule+0x268/0x680
[13679.807420] schedule+0x4f/0xc0
[13679.807423] schedule_preempt_disabled+0xe/0x10
[13679.807426] __mutex_lock.constprop.0+0x31e/0x4e0
[13679.807433] __mutex_lock_slowpath+0x13/0x20
[13679.807436] mutex_lock+0x34/0x40
[13679.807439] amdgpu_dm_atomic_commit_tail+0x53b/0x1240 [amdgpu]
[13679.807679] ? enqueue_task_fair+0x153/0x5c0
[13679.807683] ? __find_get_block+0x31/0x90
[13679.807688] ? __cond_resched+0x1a/0x50
[13679.807690] ? page_counter_cancel+0x2c/0x60
[13679.807694] ? page_counter_uncharge+0x22/0x40
[13679.807697] ? drain_stock+0x65/0xb0
[13679.807699] ? page_counter_cancel+0x2c/0x60
[13679.807702] ? drm_atomic_helper_check_planes+0x161/0x200 [drm_kms_helper]
[13679.807721] ? __cond_resched+0x1a/0x50
[13679.807724] ? __wait_for_common+0x3d/0x150
[13679.807727] ? kmem_cache_alloc_trace+0xfb/0x240
[13679.807730] ? __cond_resched+0x1a/0x50
[13679.807734] ? wait_for_completion_timeout+0x1d/0x20
[13679.807737] commit_tail+0x99/0x130 [drm_kms_helper]
[13679.807753] drm_atomic_helper_commit+0x123/0x150 [drm_kms_helper]
[13679.807769] drm_atomic_commit+0x4a/0x50 [drm]
[13679.807801] drm_atomic_helper_set_config+0x7c/0xc0 [drm_kms_helper]
[13679.807817] drm_mode_setcrtc+0x1f9/0x7b0 [drm]
[13679.807844] ? drm_mode_getcrtc+0x180/0x180 [drm]
[13679.807869] drm_ioctl_kernel+0xae/0xf0 [drm]
[13679.807895] drm_ioctl+0x247/0x460 [drm]
[13679.807920] ? drm_mode_getcrtc+0x180/0x180 [drm]
[13679.807946] amdgpu_drm_ioctl+0x4e/0x80 [amdgpu]
[13679.808118] __x64_sys_ioctl+0x91/0xc0
[13679.808122] do_syscall_64+0x61/0xb0
[13679.808125] ? fput+0x13/0x20
[13679.808128] ? exit_to_user_mode_prepare+0x87/0xb0
[13679.808131] ? syscall_exit_to_user_mode+0x27/0x50
[13679.808133] ? __x64_sys_write+0x19/0x20
[13679.808135] ? do_syscall_64+0x6e/0xb0
[13679.808137] ? sysvec_apic_timer_interrupt+0x4e/0x90
[13679.808140] ? asm_sysvec_apic_timer_interrupt+0xa/0x20
[13679.808143] entry_SYSCALL_64_after_hwframe+0x44/0xae
[13679.808145] RIP: 0033:0x7f84ca569a2b
[13679.808148] RSP: 002b:00007ffd9041f368 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[13679.808151] RAX: ffffffffffffffda RBX: 00007ffd9041f3a0 RCX: 00007f84ca569a2b
[13679.808153] RDX: 00007ffd9041f3a0 RSI: 00000000c06864a2 RDI: 000000000000000f
[13679.808154] RBP: 00000000c06864a2 R08: 0000000000000000 R09: 0000000000000000
[13679.808156] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563842ffbd30
[13679.808157] R13: 000000000000000f R14: 00005638421d45e0 R15: 00005638439ad6f0
[13679.808159] </TASK>
[13679.808243] OOM killer enabled.
[13679.808244] Restarting tasks ... done.
GPU 是：
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 14 [Radeon Pro W5500]
任何关于如何排除故障的想法都会有所帮助，经过广泛的搜索后，谷歌并没有找到任何我能找到的东西。