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Mr.Coder's questions

Martin Hope
Mr.Coder
Asked: 2018-07-18 08:35:36 +0800 CST
  • 3

numlock 键在我的MSI MS-1759 笔记本电脑上正常工作，但指示灯不工作。按下按钮时，numlock 将打开，但其灯不亮。通过终端可以强制打开它：

echo 1 | sudo tee '/sys/class/leds/input3::numlock/brightness'

再次按下 NumLock 键时，灯再次熄灭，无法再次打开。如何将笔记本电脑集成键盘的数字锁定按钮同步到灯光？

bug-reporting keyboard numlock msi 18.04
Martin Hope
Mr.Coder
Asked: 2016-09-03 02:58:07 +0800 CST
  • 1

我正在尝试通过 TCP/IP 通信与机械臂通信。它在 Windows 上运行良好，但是当我在 linux matlab 上尝试时，我无法连接到 arm。Matlab 一次又一次地尝试连接

Connecting to 169.254.131.130:10300
Connecting to 169.254.131.130:10300
Connecting to 169.254.131.130:10300
Connecting to 169.254.131.130:10300

当我 ping 我得到

PING 169.254.131.130 (169.254.131.130) 56(84) bytes of data.
From 192.168.2.4 icmp_seq=1 Destination Host Unreachable
From 192.168.2.4 icmp_seq=2 Destination Host Unreachable
From 192.168.2.4 icmp_seq=3 Destination Host Unreachable
From 192.168.2.4 icmp_seq=4 Destination Host Unreachable
From 192.168.2.4 icmp_seq=5 Destination Host Unreachable
From 192.168.2.4 icmp_seq=6 Destination Host Unreachable
From 192.168.2.4 icmp_seq=7 Destination Host Unreachable
From 192.168.2.4 icmp_seq=8 Destination Host Unreachable
From 192.168.2.4 icmp_seq=9 Destination Host Unreachable
From 192.168.2.4 icmp_seq=10 Destination Host Unreachable
From 192.168.2.4 icmp_seq=11 Destination Host Unreachable
From 192.168.2.4 icmp_seq=12 Destination Host Unreachable
^C
--- 169.254.131.130 ping statistics ---
13 packets transmitted, 0 received, +12 errors, 100% packet loss, time 12055ms
pipe 3

问题可能是linux ip设置。你有什么建议？

networking