All Questions
Tagged with framebuffer graphics
11
questions
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How are framebuffers, graphics cards and window systems connected?
Loose TL;DR: is the framebuffer device still used in Linux today? If so, does (for example) the X window system first write to, say, /dev/fb0, and then to GPU, or does it write to GPU directly, ...
1
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0
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130
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X writing top of screen to random parts of framebuffer - Xorg problem?
I have an ASUS laptop with an SIS graphics card. The default Xorg generated when I installed Debian (well, technically Raspbian Desktop) was at 640x480, yet it can easily do better as it's a 1280x800 ...
0
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0
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443
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Accessing the full screen in console mode
I have a newly installed version Rockchip Debian running on a Libre Computer Renegade that I use solely in console mode. I am trying to get text to take up the entire screen and have managed to ...
1
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0
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181
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How to set framebuffer's output?
I'm using linux (4.4) and Nvidia proprietary driver (361). A also have two monitors (one VGA, one HDMI). By default (during BIOS stage of booting) the image is displayed only on VGA output. After BIOS ...
2
votes
2
answers
848
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How does bash print to the screen if not with a framebuffer? [duplicate]
I noticed that a framebuffer doesn't always exist on some systems. In these cases, how does bash print to the screen (assuming it ever uses fb devices at all)? Since there's no framebuffer device, ...
3
votes
2
answers
876
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dual monitor with uvesafb / Intel 945GME?
I'm using uvesafb to get a simple framebuffer on a Intel 945GME embedded graphics controller. That works fine.
The PC has a single combined DVI+VGA output connector and both outputs currently show ...
1
vote
0
answers
432
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Tegra Mesa GLES without X
I am trying to setup a Tegra 3 (Toradex Apalis T30) based system that will have an OpenGL ES based user interface on a touch screen. Unfortunately the standard Linux4Tegra kernel is seriously outdated ...
33
votes
2
answers
53k
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Is it possible to access to the framebuffer in order to put a pixel on the screen from the command line?
I am not sure if it is the only possible way, but
I read that in order to put a single pixel onto the screen at a location of your choice one has to write something into a place called framebuffer.
So ...
10
votes
1
answer
4k
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What is the kernel frame buffer?
I was reading the "mplayer" man pages trying to play video using just the console, (I don't have or don't want to install X11). It mentions that I can use the kernel frame buffer device which is ...
3
votes
0
answers
2k
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modetest.c from libdrm tests lists no framebuffers
I wanted to play with KMS since it seems to be the preferred low-level graphics library on Linux. However, after compiling the appropriate modetest.c version (2.4.32, since that's the version of ...
26
votes
4
answers
90k
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No framebuffer device: how to enable it?
I'm trying to make a PCMCIA tuner card work in my headless home server, running Debian Squeeze. Now, as I have very big troubles finding the correct command line to capture, transcode end stream the ...