Skip to main content

杂记 | Misc Notes

1.gnome-shell 默认按一下winkey会出main menu, 这问题不大，但是其他我设的winkey+..的快捷键很多不能用了。比如f和空格都不行，但是t可以，很诡异。 解决办法是
system settings -> region and language -> layouts -> options -> alt/win key behaior -> meta is mapped to win keys

2.python的urllib记得是直接直接支持https的，但是不能验证证书（据说以后会实现的）。于是我找到了m2cypto这个模块，里面包装了urllib，证书有问题时会抛异常，但是证书没问题时会卡死。。。后来想了想，还是调用wget比较靠谱

3.gnome 3的控制面板里找不到startup applications了，但是可以直接运行gnome-session-properties

4.maximus：一个小软件，可以去掉最大化窗口的标题栏，配合gnome shell很不错。

5./usr/share/gnome-shell/js/ui/dateMenu.js还有panel.js可以对gnome shell顶部条进行hack，比如我把Activities改了名，自定义了时钟格式，去掉了accessibility图标。


1. By deault press the winkey once in gnome-shell will call up the main menu, this is not a big problem, but some shortcuts 'winkey + somekey' I set are not functional. For example 'f' and 'space' do not work, however 't' works, weird. To solve it:
system settings -> region and language -> layouts -> options -> alt/win key behaior -> meta is mapped to win keys

2. The urllib in python support https links, but it does not validate the certificates (some say that this will be implemented in the future). So I found the m2cypto module, it wraps urllib, and an exception will be thrown when there is problem with the certificate, however it sometimes went stuck when nothing wrong... Later I realized that it would be good just to call 'wget'

3. I cannot find 'Startup Application' in the gnome control center, but I can still run gnome-session-properties

4. maximus: a small tool that eliminate the title bar of maximized windows, looks quite good with gnome-shell.

5. Through the files /usr/share/gnome-shell/js/ui/dateMenu.js & panel.js we can hack the top bar of gnome shell, for example I renamed 'Activities', customized the datetime format, and removed the accessibility icon.
Labels:

Comments

Post a Comment

Popular posts from this blog

Determine Perspective Lines With Off-page Vanishing Point

In perspective drawing, a vanishing point represents a group of parallel lines, in other words, a direction. For any point on the paper, if we want a line towards the same direction (in the 3d space), we simply draw a line through it and the vanishing point. But sometimes the vanishing point is too far away, such that it is outside the paper/canvas. In this example, we have a point P and two perspective lines L1 and L2. The vanishing point VP is naturally the intersection of L1 and L2. The task is to draw a line through P and VP, without having VP on the paper. I am aware of a few traditional solutions: 1. Use extra pieces of paper such that we can extend L1 and L2 until we see VP. 2. Draw everything in a smaller scale, such that we can see both P and VP on the paper. Draw the line and scale everything back. 3. Draw a perspective grid using the Brewer Method. #1 and #2 might be quite practical. #3 may not guarantee a solution, unless we can measure distances/p...
3 comments
Read More »

Hardware Password Manager

[Updates 2025-01-20] The original blog post assumes that all passwords are stored in one password manager, and the password manager either unlocks everything or nothing (e.g. Keepass). After discussing with friends, I realized that if I use something like pass , and I use a hardware GPG token, I can actually store and sync all encrypted passwords to all devices, because I will only decrypt the passwords on demand, and the computer will not see the GPG private key. The compromise is that the computer will see the list of all password entries (e.g. accounts), as well as a few other issues . I've been using Keepass for many years. I don't use online password services because I cannot fully trust them. Besides, I may not always have Internet connection, which is why I also don't use a self-hosted service. Everything has been working fine, until I turn my paranoid knob to the max. Here's the thought experiment . The Imaginary Scenario Let's say I have 100 PCs for differe...
Post a Comment
Read More »

Installing Linux on Surface Pro 1g

Windows 10 will soon reach its end of life, and my 1-gen Surface Pro is not supported by Windows 11. I (finally) decided to install Linux to it. Fortunately, it's a not-so-easy nice adventure: The device has only one USB port, so I have to bring back my 10+-year old USB hub. My live USB drive cannot boot directly, I have to disable Secure Boot first, by holding Volume Up during boot. I think years ago I learned that booting on USB might not work through a USB hub, but fortunatelly it worked well with my setup. This is done by holding Volume Down during boot. Wifi adapter was detected in the live Linux environment, but not functional. And I don't have a USB-Ethernet adapter. Luckily, nowadays we have USB-tethering from Android phones, which works out-of-the-box. Originally I planned to following this guide to set up root on ZFS, however, the system froze when building the ZFS kernel module. Then I decided to just use EXT4, yet I still learned a lot from the guide about disk par...
Post a Comment
Read More »