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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Debian10: No such file or directory: /dev/dri/card0
I'm installing Debian 10 but I cannot startx nor have a GUI. I think the problem is about some driver.
Here are the errors I've got in /var/log/Xorg.0.log :
[drm] Failed to open DRM device for pci:...
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How to access and use Linux Frame Buffer without GTK?
I'd like to use /dev/fb0 or whichever other files are provided by the linux.
This in a system specific way as low as possible how to read/write/interpret those device files for GUI frame-buffer non-...
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Can gstreamer fbdevsink output to Xvfb virtual framebuffer? Which device to use?
I learned recently how to use Xvfb virtual Linux framebuffer:
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=261264
I want gstreamer fbdevsink output into a virtual framebuffer, but that ...
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Displaying a picture on the framebuffer while running a script created with dialog
I have setup scripts that use the dialog command. They are used to prepare embedded servers.
I'd like to display a picture on a edge while a dialog script is running. The problem is, that dialog by ...
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Xfbdev not found after including X (tinyx/kdrive) in Buildroot
I'm trying to add Xorg to an evaluation board for which I've already been provided with a working linux kernel. The evaluation board has an LCD display and I can confirm hardware & drivers are ...
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How do I get fb0 scanline length?
I am accessing /dev/fb0, the screen's frame buffer, in console mode, Debian 10, using a HP Envy Touchsmart laptop, using fwrite standard C function.
I read this page:
https://techoverflow.net/2015/06/...
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How can I display graphics on the screen from the kernel over the top of my X11/Wayland session?
I want to draw simple (2D bitmapped) graphics onto my screen (in response to (simple) external inputs) with the lowest latency possible (the order of tens of milliseconds) so I can empirically test ...
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How can I prevent a TTY (e.g. /dev/tty1) from writing to the framebuffer (/dev/fb0)?
I'm running a Raspbian Buster server with no Xserver. I want to display wallpaper on a connected television but /dev/tty1 keeps over writing /dev/fb0 either with a blinking cursor or just refreshing ...
user168989
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How to prevent a particular terminal (e.g. /dev/tty1) from writing the cursor to framebuffer (e.g. /dev/fb0)
I'm running Raspbian Buster with no Xserver but attached to a television. I have a script that writes an image to the framebuffer from a timed systemd service.
The problem is /dev/tty1 is writing ...
user168989
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How to set a large stty size?(default 80x24)
I'm really not sure where is the problem, so I'm putting all message i think helpful here.
dmesg | grep drm
[ 0.316388] fb0: switching to cirrusdrmfb from EFI VGA
[ 0.316769] [drm] fb mappable ...
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Struggling with display KMS options on Lenovo D330-10igm
I'm trying to replace the default Windows 10 installation with Linux on this hybrid tablet.
What I tried
First I tried with Ubuntu 18.04, blank screen, I thought about starting modifying the KMS ...
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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 ...
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Redirect all keyboard input to a detached screen session
I'm trying to build a headless system using a Raspberry Pi; I have two programs runnning on it, one to catch all the input from a barcode reader (a simple keyboard emulation device) and one to display ...
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How do I vsync in bash (or the Linux framebuffer)?
I was trying to see how fast I could fill/swap on /dev/fb0 with something to the effect of:
while :; do head -c $SIZE /dev/erg > /dev/fb0; head -c $SIZE /dev/zero > /dev/fb0; done
(Where /dev/...
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Display blacking out on boot (Macbook Linux)
(Please note that I am breaking this out as a separate question from this one I asked earlier: How exactly do the Linux display device files work?)
I have a Linux From Scratch system that I've built (...
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