Skip to main content

ubuntu flash 中文乱码的解决

症状是所有中文都显示为方块

网上搜了很多方法，看上去都很暴力。另外在https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/207198有很多讨论。

所有的方法都集中在/etc/fonts/conf.d/49-sansserif.conf这个文件上，不是修改就是删除。

（以下为个人猜测）

这个文件的用途是给没有通用字体名的字体加上sans-serif这个名字，比如说我想在标题栏上使用Comic Sans, 但是如果出现了中文怎么办？一般对中文的支持都是在serif, sans-serif,monospace这三个列表里加上中文字体，但是如果我指定的是Comic Sans，系统如何知道去哪里找中文字体呢。

所以这个文件就有用了，它给没有制定通用字体名（sans,sans-serif,monospace之一）的字体强行加上一个sans-serif，这样看上去就比较合理了。

而flash是怎么回事我就不知道了，因为不是所有的flash上显示中文都是乱码，youtube上的是乱码。

我在~/.fonts.conf里给sans-serif列表前端加了两个字体，一个英文一个中文，中文在后，这样可以让两种语言都能正确显示（因为中文字体对应的字符集包含英文的）。但是结果是flash就认第一个，不能匹配到第二个。我猜是flash请求时的问题，当然也可能是fontconfig的问题。如果我去掉了第一个字体，flash倒是正常了，但是所有字符都用那个中文字体显示了，不爽，所以这个文件不能动。

至于sansserif.conf这个文件，直接删除自然是不大合理，不知道会匹配到哪里去。目前的临时解决办法是把最后那个sans-serif改成我指定的那个中文字体，想了一下从逻辑上讲的通。

但是这个毕竟不是办法，让一般用户改这个还是不合理。如果是flash的问题自然好办，如果不是的话，我觉得可以给50-user.conf更高一点的级别，让用户自由度更大。
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 »

Chasing an IO Phantom

My home server has been weird since months ago, it just becomes unresponsive occassionally. It is annoying but it happens only rarely, so normally I'd just wait or reboot it. But weeks ago I decided to get to the bottom of it. What's Wrong My system set up is: Root: SSD, LUKS + LVM + Ext4 Data: HDD, LUKS + ZFS 16GB RAM + 1GB swap Rootless dockerd The system may become unresponsive, when the IO on HDD  is persistantly high for a while. Also: Often kswapd0 has high CPU High IO on root fs (SSD) From dockerd and some containers RAM usage is high, swap usage is low It is very strange that IO on HDD can affect SSD. Note that when this happens, even stopping the IO on HDD does not always help. Usually restarting dockerd does not help, but rebooting helps. Investigation: Swap An obvious potential root cause is the swap. High CPU on kswapd0 usually means the free memory is low and the kernel is busy exchanging data between disk and swap. However, I tried the following steps, none of the...
Post a Comment
Read More »

Moving Items Along Bezier Curves with CSS Animation (Part 2: Time Warp)

This is a follow-up of my earlier article.  I realized that there is another way of achieving the same effect. This article has lots of nice examples and explanations, the basic idea is to make very simple @keyframe rules, usually just a linear movement, then use timing function to distort the time, such that the motion path becomes the desired curve. I'd like to call it the "time warp" hack. Demo See the Pen Interactive cubic Bezier curve + CSS animation by Lu Wang ( @coolwanglu ) on CodePen . How does it work? Recall that a cubic Bezier curve is defined by this formula : \[B(t) = (1-t)^3P_0+3(1-t)^2tP_1+3(1-t)t^2P_2+t^3P_3,\ 0 \le t \le 1.\] In the 2D case, \(B(t)\) has two coordinates, \(x(t)\) and \(y(t)\). Define \(x_i\) to the be x coordinate of \(P_i\), then we have: \[x(t) = (1-t)^3x_0+3(1-t)^2tx_1+3(1-t)t^2x_2+t^3x_3,\ 0 \le t \le 1.\] So, for our animated element, we want to make sure that the x coordiante (i.e. the "left" CSS property) is \(...
3 comments
Read More »