[Nix-dev] Intermittent Blank Screen upon Opening Laptop Lid

Fri Jul 1 15:49:51 CEST 2016

I found something interesting on my previous boot logs, since I had to 
force shutdown.

The error is follows (from journalctl -b -1):

```

Jul 01 23:10:48 matrix-central kernel: nvidia-modeset: WARNING: GPU:0: 
Lost display notification; continuing.
Jul 01 23:12:32 matrix-central kernel: nvidia-modeset: ERROR: GPU:0: 
Idling EVO timed out: 0x0000957d:0:0:0x00000040
Jul 01 23:12:55 matrix-central kernel: INFO: rcu_sched self-detected 
stall on CPU
Jul 01 23:12:55 matrix-central kernel:         7: (21000 ticks this GP) 
idle=be3/140000000000001/0 softirq=4499/4499 fqs=7000
Jul 01 23:12:55 matrix-central kernel:          (t=21000 jiffies g=12925 
c=12924 q=135)
Jul 01 23:12:55 matrix-central kernel: Task dump for CPU 7:
Jul 01 23:12:55 matrix-central kernel: X               R  running 
task        0  2997   2969 0x00400088
Jul 01 23:12:55 matrix-central kernel:  ffffffff8184e340 
ffff88081edc3d68 ffffffff8109892f 0000000000000007
Jul 01 23:12:55 matrix-central kernel:  ffffffff8184e340 
ffff88081edc3d88 ffffffff8109be6d ffff88081edc3dc8
Jul 01 23:12:55 matrix-central kernel:  0000000000000008 
ffff88081edc3db8 ffffffff810c4180 ffff88081edd6a40
Jul 01 23:12:55 matrix-central kernel: Call Trace:
Jul 01 23:12:55 matrix-central kernel:  <IRQ> [<ffffffff8109892f>] 
sched_show_task+0xaf/0x120
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff8109be6d>] 
dump_cpu_task+0x3d/0x50
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810c4180>] 
rcu_dump_cpu_stacks+0x90/0xe0
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810c794e>] 
rcu_check_callbacks+0x53e/0x830
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff8104ae5a>] ? 
native_smp_send_reschedule+0x4a/0x70
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810cc629>] 
update_process_times+0x39/0x60
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810dc396>] 
tick_sched_handle.isra.15+0x36/0x50
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810dc3f4>] 
tick_sched_timer+0x44/0x80
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810cd285>] 
__run_hrtimer+0x85/0x240
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810dc3b0>] ? 
tick_sched_handle.isra.15+0x50/0x50
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff810cd7c3>] 
hrtimer_interrupt+0xf3/0x210
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff8104d51c>] 
local_apic_timer_interrupt+0x3c/0x70
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff81502b01>] 
smp_apic_timer_interrupt+0x41/0x60
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff81500b7e>] 
apic_timer_interrupt+0x6e/0x80
Jul 01 23:12:55 matrix-central kernel:  <EOI> [<ffffffff8101dd99>] ? 
read_tsc+0x9/0x10
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e90600>] ? 
_nv001840kms+0xd0/0x120 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e905e2>] ? 
_nv001840kms+0xb2/0x120 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e86b83>] ? 
_nv001737kms+0xa3/0x110 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1ea238e>] ? 
_nv001964kms+0x145e/0x2440 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa109d08d>] ? 
_nv009724rm+0xd/0x40 [nvidia]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e704bd>] ? 
nvkms_alloc+0x5d/0x70 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e71400>] ? 
_nv000171kms+0x40/0x40 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e7142e>] ? 
_nv000327kms+0x2e/0x40 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e727f1>] ? 
nvKmsIoctl+0x161/0x1e0 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e70cd5>] ? 
nvkms_ioctl_common+0x45/0x90 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa1e70d82>] ? 
nvkms_ioctl+0x62/0x90 [nvidia_modeset]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa0bf3080>] ? 
nvidia_frontend_compat_ioctl+0x40/0x50 [nvidia]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffffa0bf309e>] ? 
nvidia_frontend_unlocked_ioctl+0xe/0x10 [nvidia]
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff811d4586>] ? 
do_vfs_ioctl+0x2a6/0x4b0
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff811c2425>] ? 
__sb_end_write+0x35/0x70
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff8110344c>] ? 
__audit_syscall_entry+0xac/0x100
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff81022c95>] ? 
do_audit_syscall_entry+0x55/0x80
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff811d4811>] ? 
SyS_ioctl+0x81/0xa0
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff8102422e>] ? 
syscall_trace_leave+0x9e/0x120
Jul 01 23:12:55 matrix-central kernel:  [<ffffffff814ffd2e>] ? 
system_call_fastpath+0x12/0x71
Jul 01 23:13:58 matrix-central kernel: INFO: rcu_sched self-detected 
stall on CPU
Jul 01 23:13:58 matrix-central kernel:         7: (84004 ticks this GP) 
idle=be3/140000000000001/0 softirq=4499/4499 fqs=27997
Jul 01 23:13:58 matrix-central kernel:          (t=84004 jiffies g=12925 
c=12924 q=594)
Jul 01 23:13:58 matrix-central kernel: Task dump for CPU 7:
Jul 01 23:13:58 matrix-central kernel: X               R  running 
task        0  2997   2969 0x00400088
Jul 01 23:13:58 matrix-central kernel:  ffffffff8184e340 
ffff88081edc3d68 ffffffff8109892f 0000000000000007
Jul 01 23:13:58 matrix-central kernel:  ffffffff8184e340 
ffff88081edc3d88 ffffffff8109be6d ffff88081edc3dc8
Jul 01 23:13:58 matrix-central kernel:  0000000000000008 
ffff88081edc3db8 ffffffff810c4180 ffff88081edd6a40
Jul 01 23:13:58 matrix-central kernel: Call Trace:
Jul 01 23:13:58 matrix-central kernel:  <IRQ> [<ffffffff8109892f>] 
sched_show_task+0xaf/0x120
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff8109be6d>] 
dump_cpu_task+0x3d/0x50
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810c4180>] 
rcu_dump_cpu_stacks+0x90/0xe0
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810c794e>] 
rcu_check_callbacks+0x53e/0x830
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810cc629>] 
update_process_times+0x39/0x60
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810dc396>] 
tick_sched_handle.isra.15+0x36/0x50
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810dc3f4>] 
tick_sched_timer+0x44/0x80
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810cd285>] 
__run_hrtimer+0x85/0x240
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810dc3b0>] ? 
tick_sched_handle.isra.15+0x50/0x50
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff810cd7c3>] 
hrtimer_interrupt+0xf3/0x210
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff8104d51c>] 
local_apic_timer_interrupt+0x3c/0x70
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff81502b01>] 
smp_apic_timer_interrupt+0x41/0x60
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff81500b7e>] 
apic_timer_interrupt+0x6e/0x80
Jul 01 23:13:58 matrix-central kernel:  <EOI> [<ffffffff8101dd99>] ? 
read_tsc+0x9/0x10
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e90600>] ? 
_nv001840kms+0xd0/0x120 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e905e2>] ? 
_nv001840kms+0xb2/0x120 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e86b83>] ? 
_nv001737kms+0xa3/0x110 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1ea238e>] ? 
_nv001964kms+0x145e/0x2440 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa109d08d>] ? 
_nv009724rm+0xd/0x40 [nvidia]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e704bd>] ? 
nvkms_alloc+0x5d/0x70 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e71400>] ? 
_nv000171kms+0x40/0x40 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e7142e>] ? 
_nv000327kms+0x2e/0x40 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e727f1>] ? 
nvKmsIoctl+0x161/0x1e0 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e70cd5>] ? 
nvkms_ioctl_common+0x45/0x90 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa1e70d82>] ? 
nvkms_ioctl+0x62/0x90 [nvidia_modeset]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa0bf3080>] ? 
nvidia_frontend_compat_ioctl+0x40/0x50 [nvidia]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffffa0bf309e>] ? 
nvidia_frontend_unlocked_ioctl+0xe/0x10 [nvidia]
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff811d4586>] ? 
do_vfs_ioctl+0x2a6/0x4b0
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff811c2425>] ? 
__sb_end_write+0x35/0x70
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff8110344c>] ? 
__audit_syscall_entry+0xac/0x100
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff81022c95>] ? 
do_audit_syscall_entry+0x55/0x80
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff811d4811>] ? 
SyS_ioctl+0x81/0xa0
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff8102422e>] ? 
syscall_trace_leave+0x9e/0x120
Jul 01 23:13:58 matrix-central kernel:  [<ffffffff814ffd2e>] ? 
system_call_fastpath+0x12/0x71

```

Looks like something to do with stalling and CPU 7 and NVIDIA?

Thanks,
Roger

On 1/07/2016 11:15 PM, Bjørn Forsman wrote:
> On 1 July 2016 at 15:10, Roger Qiu <roger.qiu at matrix.ai> wrote:
>> Hi Nixers,
>>
>> I discovered this problem a while ago, basically upon closing the lid and
>> reopening it after 10 min, the screen stays blank, and I can't do anything.
>> Even switching to tty1 doesn't work.
>>
>> This doesn't always happen. And when I close the lid and reopen after a few
>> seconds, it usually works and displays something.
>>
>> What are the steps that I can take to debug this issue.
>>
>> It was happening back on NixOS 15.09. and is continuing on 16.03.
>>
>> I'm running NVIDIA and using NVIDIA video card driver.
> Did you check the system log?
>
> - Bjørn

-- 
Founder of Matrix AI
https://matrix.ai/
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