Skip to main content

Screen Color Calibration


configure softwares
gimp: edit->preferences->color management->try to use system monitor profile
firefox: about:config -> gfx.color_management.mode -> 1
 
test pages


I bought a spyder 4 express and would like to try dispcalGUI on my surface pro, so I have to install Argyll CMS's driver, which is not signed.

For windows 8, one option to disable driver signature enforcement is through "advanced startup settings", which lists a few options after a restart, and you can press f7 or 7 to disable it.
However for my surface pro, it refused to recognize my keyboard, no matter it is a bluebooth keyboard, a usb wireless keyboard or a normal usb keyboard.
I guess a touch/type cover might work, but I don't have one.

Another option is to enable test mode (bcdedit -set testsigning on), before which you should also disable secure boot in the bios setting 
(shut down the device, hold the volumn up key before pressing the power button and release it when you see the surface logo)
However in this case, any signed driver could be installed, but unsigned drivers are still rejected.
For windows 7, there are words that you may use dseo13b to hack, but no luck for me on windows 8.

I had thought about using my Linux VM to do the calibration, which is running under Hyper-V, but unfortunately Hyper-V does not support USB forwarding.
I'd even thought about other VM softwares, but according to the Internet, it might not work. (because VM may not access the graphics card)

Another solution came into my mind is to boot up the device with a Linux on a USB stick, then I'll be able to do whatever I want. 
But there is only one USB port on Surface Pro, and I'm not sure if USB boot or Spyder would work behind a USB hub.

Finally I gave up.

Other possible solutions:
- Sign the driver with WDK, with your own certificates
- Install Linux and free the power of the device


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...
2 comments
Read More »

[转] UTF-8 and Unicode FAQ for Unix/Linux

这几天,这个东西把我搞得很头疼 而且这篇文章好像太大了,blogger自己的发布系统不能发 只好用mail了 //原文 http://www.cl.cam.ac.uk/~mgk25/unicode.html UTF-8 and Unicode FAQ for Unix/Linux by Markus Kuhn This text is a very comprehensive one-stop information resource on how you can use Unicode/UTF-8 on POSIX systems (Linux, Unix). You will find here both introductory information for every user, as well as detailed references for the experienced developer. Unicode has started to replace ASCII, ISO 8859 and EUC at all levels. It enables users to handle not only practically any script and language used on this planet, it also supports a comprehensive set of mathematical and technical symbols to simplify scientific information exchange. With the UTF-8 encoding, Unicode can be used in a convenient and backwards compatible way in environments that were designed entirely around ASCII, like Unix. UTF-8 is the way in which Unicode is used under Unix, Linux, and similar systems. It is now time to make sure that you are well familiar ...
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 »