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2
votes
1answer
369 views

How to make the linux framebuffer console narrower?

I've just a installed a Debian Wheezy box (Debian 7.0rc1). By default, the console is displayed using the frame buffer, and due to a certain hardware setup I won't go into, this comes out too wide on ...
0
votes
1answer
830 views

KVM/QEMU SDL output to framebuffer

I want a KVM guest with SDL graphics on a host that does not run X. From what I've read, SDL supports output to the framebuffer, but I can't find much on the topic.
0
votes
1answer
591 views

How to improve performance of mplayer with libcaca?

I'm using mplayer and libcaca on Gentoo. My framebuffer (uvesafb) is running at 1920x1200 (I don't know how many characters that is) and mplayer has problems filling up the screen, so video and audio ...
2
votes
0answers
455 views

How to display a framebuffer and some stdout text

So I have this program that writes to the framebuffer in Ubuntu. It works beautifully: I enter the system terminal using ⇧+CTRL+F1, then start the program, and it starts writing to the framebuffer and ...
1
vote
0answers
46 views

Raspberry Pi overscan not stretching image

I have a composite car monitor like this one, but I can't seem to get overscan right on raspbian. By default overscan leaves borders and seems to display 4:3 stretched to 16:9. To be able to operate ...
1
vote
0answers
562 views

Understanding how LabView buffers work

I am using LabView for an imaging project. In the code I have two separate while loops running (for the most part) independently. The small dependence -if this is a dependence at all- comes from the ...
1
vote
0answers
1k views

Screen shows only vertical colored stripes (red, green or blue) on black background

First let me point out that this has never occurred when booting Windows. So I don't think it's damage on the hardware. So, I'm booting my Inspiron 1501 laptop running Debian, and the XDM (X Display ...
0
votes
0answers
13 views

Display basic image color on the framebuffer

I am trying to debug an issue during the installation of Debian on PowerPC. It seems the Open Firmware Frame Buffer (offb.c built-in driver) is not setup correctly, and has red channel inverted with ...
0
votes
0answers
34 views

Increase buffer Video on FFmpeg

I apply the following command on FFmpeg: ./ffmpeg -re -i 'udp://237.0.0.1:1234?buffer_size=2000000&fifo_size=1000000' -vf scale=720x480 -c:v libx265 -c:a copy -f mpegts 'udp://239.0.0.1:1234?...
0
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0answers
34 views

Linux - Anyway to modify framebuffer at OS level?

I'm looking to program something that is able to hook into and modify the framebuffer (say, permanent post processing) across the entire OS, including all programs that open. Is this possible?