New answers tagged intel
1
Use a tool that can get a screen capture, e.g. the gimp, and move the resulting image to another computer. If it looks ok, then colors are being sent to the framebuffer fine, and its your screen that has gone bad. The fact that it works fine on your HDTV strongly suggests this is a problem with your LCD panel.
It is not a problem with color calibration, ...
1
You can modify your X server's configuration - see DISPLAY SUBSECTION in the xorg.conf man page, especially the Virtual option. Since X11 often comes without non-empty configuration (either in /etc/X11/xorg.conf or /etc/X11/xorg.conf.d/*) these days, you may need to use X -configure to generate one to start with.
2
Your browser has a user agent string which displays information about your operating system, screen resolution, etc.
You might want to try: whatsmyuseragent.com or showip.net to display your user agent.
This is sometimes considered as a privacy issue, you might want to check out How trackable is my browser?.
5
I don't know how Dropbox does it, but usually the browser sends a User-Agent string which tells the web server which brower you use, its version and the operating system. Here's an example:
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.160 Safari/537.22
You can check what your browser sends e.g. with ...
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