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Topic: Video system Linux and framebuffer. A question.

Colleagues! Please  in time and space! How the Video system Linux and how it is connected with framebuffer th is arranged? A situation - I collect the distribution kit Linux for the domestic computer. There is a kernel Linux, in a kernel is framebuffer. It works. That is, the penguin is drawn, the console works, it is possible to enter a command and it is executed. What to do further, how to make the minimum distribution kit with a drawing? (System yocto I know, collected distribution kits for Intel and an automated workplace.) What ways are? 1) if to be restricted framebuffer th and not to lift XServer that turns out? It is necessary to write/use the special programs, which are able to work with framebuffer th? Whence them to take, how them to write? 2) like Qt it is possible to collect for operation with framebuffer th. What turns out in this case? It is necessary to be restricted to programs written on Qt? Also what, each program should be recompiled on this spets-Qt? 3) Taki to lift XServer. How it to lift? Well, I understand, what it should be compiled As it to tell that it worked through framebuffer? Somebody similar was engaged in something? What book (article) on this subject can is?

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Re: Video system Linux and framebuffer. A question.

Hello, alpha21264, you wrote: A> 3) Taki to lift XServer. I would lift . A> As it to lift? Well, I understand, what it should be compiled A> As to it to tell, that it worked through framebuffer? Begin with it: https://www.x.org/archive/X11R6.8.1/doc/fbdev.4.html you Can be trained on PC. P.S. framebuffer without hardware acceleration of a drawing it can appear  slow. As as far as I understand, at the domestic computer the processor not from among especially fast.

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Re: Video system Linux and framebuffer. A question.

Hello, alpha21264, you wrote: A> Colleagues! A> please  in time and space! A> as the Video system Linux and how it is connected with framebuffer th is arranged? In any way  A> the Situation - I collect the distribution kit Linux for the domestic computer. A> there is a kernel Linux, in a kernel is framebuffer. It works. A> that is, the penguin is drawn, the console works, it is possible to enter a command and it is executed. A> what to do further how to make the minimum distribution kit with a drawing? A> (system yocto I know, collected distribution kits for Intel and an automated workplace.) A> What there are ways? A> 1) if to be restricted framebuffer th and not to lift XServer that turns out? A> it is necessary to write/use the special programs, which are able to work with framebuffer th? A> Whence them to take, how them to write? Most to write A> 2) Like Qt it is possible to collect for operation with framebuffer th. What turns out in this case? A> It is necessary to be restricted to programs written on Qt? A> Also what, each program should be recompiled on this spets-Qt? It is necessary to be restricted, but not the fact that at you all turns out A> 3) Taki to lift XServer. A> As it to lift? Well, I understand, what it should be compiled A> As to it to tell, that it worked through framebuffer? It is not necessary to be compiled anything and for operation with  it is necessary to configure itself  server A> Somebody something similar was engaged? A> what book (article) on this subject can is? Google generally is hammered by it how to adjust Iks the server for teapots, already anybody and examples does not write, the youth already from films it is able

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Re: Video system Linux and framebuffer. A question.

Hello, alpha21264, you wrote: A> Colleagues! A> please  in time and space! A> as the Video system Linux and how it is connected with framebuffer th is arranged? https://people.freedesktop.org/~marcheu … rivers.pdf A> the Situation - I collect the distribution kit Linux for the domestic computer. A> there is a kernel Linux, in a kernel is framebuffer. It works. A> that is, the penguin is drawn, the console works, it is possible to enter a command and it is executed. A> what to do further how to make the minimum distribution kit with a drawing? A> (system yocto I know, collected distribution kits for Intel and an automated workplace.) A> What there are ways? A> 1) if to be restricted framebuffer th and not to lift XServer that turns out? A> it is necessary to write/use the special programs, which are able to work with framebuffer th? A> Whence them to take, how them to write? As usual with the help google, it is possible more exotically, for example to deliver gentoo and to search for packets supporting a flag "fb" or as there it now is called. mplayer for example is able to work atop framebuffer and links. And to write them by the way it is very simple, since framebuffer it is type a piece  accessible directly, that is opened/dev/fb0 moved on 4 32 bit words (it is admissible at you 32 bpp) and wrote down 0xFF_FF_FF_FF and here at you the fifth pixel at the left/from above became white. A> 2) like Qt it is possible to collect for operation with framebuffer th. What turns out in this case? A> It is necessary to be restricted to programs written on Qt? gtk + too is able atop framebuffer A> And what, each program should be recompiled on this spets-Qt? Yes it is necessary, but you somehow safely reflect on set of programs, what for they will be necessary to the user if at it are not present windows manager, that is it works with one program which you in a StartUp added also everything how it launches others? A> 3) Taki to lift XServer. A> As it to lift? Well, I understand, what it should be compiled A> As to it to tell, that it worked through framebuffer? To launch Xvfb and all. Xorg is able to work atop framebuffer.

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Re: Video system Linux and framebuffer. A question.

Hello, Zhendos, you wrote: A>> 3) Taki to lift XServer. A>> As it to lift? Well, I understand, what it should be compiled A>> As to it to tell, that it worked through framebuffer? Z> to Launch Xvfb and all. Xorg is able to work atop framebuffer.  here write, https://en.wikipedia.org/wiki/Xvfb that Xvfb only imitates framebuffer That is, on the screen he will draw nothing. I certainly can get into source codes that he  started to write to video storage. But whether there is no more simple decision?

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Re: Video system Linux and framebuffer. A question.

To you already time told Xorg has in itself different drivers for operation about video and one of them through freamebuffer