Questions tagged [framebuffer]
related to Linux `fbdev` abstraction (a.k.a. Linux framebuffer), as well as to accessing the framebuffer (a part of video memory) in general
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Can GRUB font size be customised?
I would like to reduce the size of the font of GRUB boot loader. Is it possible and so how?
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How to use /dev/fb0 as a console from userspace, or output text to it
So I have a Palm Pre (original P100EWW) model that I enabled developer mode on, and installed a Debian Squeeze chroot. Works great. I have plans to use this for ANYTHING (bittorrent peer, web server)...
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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 ...
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Kernel Mode Setting vs. Framebuffer?
With KMS, the graphics drivers are moved into the kernel. Since the framebuffer was already in the kernel, I wouldn't expect this to affect framebuffer operation. Yet, I read that KMS supercedes the ...
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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 ...
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How can I add an additional framebuffer device in Linux?
I'm running a Ubuntu 12.04 LTS as a home NAS server, without X. Recently I got into tuning it to serve as a video playing media device too. It might've been easier at this point to install X, but I ...
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Rotate console on startup (Debian)
I want to rotate my console (not X Server) by 90 degrees (clockwise).
The following seems to work for me: echo 1 > /sys/class/graphics/fbcon/rotate; however, I'd prefer to use a kernel option in ...
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How can I get the number bytes to write per row for FrameBuffer?
Goal: I'm writing a very simple image viewer for framebuffer /dev/fb0 (something like fbi).
Current state:
My software takes the pixel resolution from /sys/class/graphics/fb0/virtual_size (such as ...
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Disable framebuffer in QEMU guests
The QEMU options -display curses and -nographic -device sga (the serial graphics adapter) are very convenient for running QEMU outside of a graphical environment.
(think: remote ssh connection, ...
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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 ...
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What happened to `vga=ask` in newer kernels?
I used to activate framebuffer mode in the "older" kernels with vga=ask, and later setting it to a value, once I've figured out which one works best for me.
Now, this option seems to be gone, the 3....
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cannot run in framebuffer mode. Please specify busIDs
from my previous question empty screen after booting from live persistent usb, I am able after boot to access all files and folders, but the X-server is unable to load (so I get only to tty1). From ...
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Is there a way to add margin, border, offset or padding to the Linux frame buffer text console to compensate for HDMI overscan?
I have a newly bought cheap 8 inch TFT LCD display that is "cutting the edges off" on all sides (i.e., not showing all the pixels). I've come to understand that this is due to "overscan" which seems ...
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hwinfo --framebuffer shows nothing, can't change grub resolution
I am using a Lenovo Yoga C940 15" with Fedora 34. It has a 4K screen with an nvidia gtx1650 mobile card and integrated intel graphics. I wanted to change the resolution of the GRUB menu because ...
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Which systemd service starts text console on the framebuffer device?
I'm working with an embedded platform and need to have /dev/fb0 clear for my own use (the device accessible over serial console while the screen is used to display information, without X.).
I've ...
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