解决安卓手机WiFi叹号以及无法自动切换WiFi的问题（Android 13可用）

故障现象

安卓手机同时启用数据流量和WiFi时，系统默认使用流量，不走WiFi网络，状态栏WiFi图标上有一个感叹号。关闭手机流量，仅使用WiFi时，可以正常联网，WiFi感叹号依旧。打开WiFi设置，提示“无互联网连接”，但明明可以正常联网使用。

总而言之，WiFi网络毫无问题，影响最大的是无法自动切换到WiFi网络，需要手动关闭流量，才能正常使用WiFi。

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重新发现陶喆

最近偶然想起陶喆，搜寻了一下他的信息，发现了一个熟悉的名字——《黑色柳丁》。这个名字很是特别，令我印象深刻。当年也耳闻过这个名字，可是从未曾听过这张专辑的内容。打开Spotify一听，简直惊为天人。华语乐坛公认的教父有罗大佑等人，媒体也常用教父来指称陶喆，如今才知并未过誉。

可是说来惭愧，我过去几乎没有怎么听过陶喆的作品，印象最深的也只有一首《找自己》，好像曾经做过雪碧的广告歌曲在电视上播出过。后来大概在一些门店的喇叭里偶尔听过《爱，很简单》，这就是我对陶喆的全部印象。

如今细细想来，过去错过陶喆可能是我人生最遗憾的事情之一。虽然自打小学高年级开始就一直在听周杰伦，掐指一算也有近20年的时间。可是我自从高中开始便对周杰伦的兴趣不大了，主要听的也是他早期和中期的歌曲。大学时期开始广泛涉猎欧美日韩的经典作品，又为我打开了全新的音乐之门。

陶喆作为流行音乐歌手，其在群众中的流行度也确实是惨，这就要探究一下原因。

谈创作欲望的降低

最近很长一段时间没有写博客了，原因是创作欲望越来越低。

其实创作本身算是暴露癖的一种，只不过是把自己的思想展示给别人看，而不是肉体。如果还能顺带赚点小钱，那就是两全其美之事，不过我写博客的目的仅仅在于分享。如今没有了展示的欲望，肯定有个中缘由。

Stop using the balanced power plan for high DPC Latency problem: how to detect and how to solve

Well, this is a tiny but important knowledge and I just noticed it today.

First of all, you need to know one thing: if DPC Latency is higher than 1000 μs, it will cause some strange phenomena such as sound lagging, and the video games have low performance.

How to repair mouse scrolling sound without breaking your warranty and with zero costs

https://www.bilibili.com/video/BV1wQ4y1U7ZR

I tested this method and it is amazing.

How to make the common user be sudoer on the Debian server

Before we go

I have tested all the steps many times on Debian 11 by Virtual Machine Snapshots. It can be reproduced step by step.

Anytime the message notices you to provide the password, just input it. Make sure you remember the correct password.

How to avoid sound morphing while using MPC-HC or MPC-BE to speed up your video

Right-click the main area of the player and click the Options… menu.

[solved] Strange problems caused by three sticks of RAM

Recently, I bought a Hynix CJR 16GB RAM to upgrade my old PC. It has two 8GB RAMs, which are also Hynix CJR. I plugged 16GB into A2 on the motherboard, 8GB into B1, and 8GB into B2, to build the 16GB + (8 GB + 8GB) dual channel.

The system can recognize the 32GB RAM, running at 3200 MHz, with timing 16-18-18-36, voltage 1.36V. I think it’s very lenient for Hynix CJR, even with three sticks of RAM. I can use 8G + 8G, with timing 16-19-19-36, voltage 1.36V, very perfectly, no problems.

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But I met problems during these days. What strange problems I met so far:

Merge the old Steam Library into the Steam Installation path folder

The problem is caused by this:

If you have installed Steam on your D:\ driver, and you have the old Steam Library on your D:\ driver before, you will find Steam won’t let you add this old Library folder because Steam only allows one Library on the same driver. For D:\ driver, at present, it has been the default driver for Steam Library while you are installing the Steam main program. You can’t even change the default folder to another folder on the D:\ driver, it has been fixed by Steam.

There are two solutions:

There is a big bug on Debian Networking config while adding new IP addresses and here is the life saver

NOTICE: This article only talks about VPS. Assume you only have one network named eth0.