屏幕黑屏几秒钟

Question

我遇到了一个问题。我的笔记本电脑屏幕有时会黑屏 3-5 秒，但我仍然可以书写，所以系统运行正常。

有人可以帮忙吗？

硬件：HP 840 G1

软件：Ubuntu 18.04 LTS

在过去的一个小时里我已经注意到两次了：11:09 - 黑屏 2 秒，11:47 - 黑屏 3 秒。

第一次黑屏的日志：

perf: interrupt took too long (2510 > 2500), lowering kernel.perf_event_max_sample_rate to 79500 time was 11:08:58, then


[session uid=1000 pid=1544] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.21' (uid=1000 pid=1669 comm="/usr/bin/gnome-shell " label="unconfined")


[session uid=1000 pid=1544] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.21' (uid=1000 pid=1669 comm="/usr/bin/gnome-shell " label="unconfined")


[session uid=1000 pid=1544] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.21' (uid=1000 pid=1669 comm="/usr/bin/gnome-shell " label="unconfined")


[session uid=1000 pid=1544] Successfully activated service 'org.gnome.ControlCenter.SearchProvider'


[session uid=1000 pid=1544] Successfully activated service 'org.gnome.Nautilus'


[session uid=1000 pid=1544] Successfully activated service 'org.gnome.seahorse.Application'

11:09:46

第二次是上午 11:47:47：

[session uid=1000 pid=1544] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.21' (uid=1000 pid=1669 comm="/usr/bin/gnome-shell " label="unconfined")


[session uid=1000 pid=1544] Activating service name='org.gnome.seahorse.Application' requested by ':1.21' (uid=1000 pid=1669 comm="/usr/bin/gnome-shell " label="unconfined")


[session uid=1000 pid=1544] Successfully activated service 'org.gnome.ControlCenter.SearchProvider'


[session uid=1000 pid=1544] Successfully activated service 'org.gnome.seahorse.Application'

和上午 11:47:50

[session uid=1000 pid=1544] Successfully activated service 'org.gnome.seahorse.Application'