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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questions with no upvoted or accepted answers
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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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Setting the EFI Framebuffer's Resolution during boot
I've got a MSI WD-60 laptop running Gentoo. It has one of those 3840x2160 screens so I've had to setup Gnome/Firefox/IntellJ to double their DPI for anything to be readable. It all works fine except ...
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How can I run (start) a framebuffer application via SSH?
I am currently fiddling around with a RaspberryPi and a TFT hat. It is connected to the RPi GPIO pins. The TFT screen itself is working and I see the normal Linux console on it. I fetched a quick ...
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Is there some way of simulating a framebuffer device?
I'm starting to write a small software that I intend to run on embedded linux, and I want to draw the GUI using a framebuffer device. However, since I want to be able to test the software on my ...
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Setting Framebuffer splash resolution when exiting X
I installed a copy of BackTrack 5 R2 (Ubuntu 10.04) to my HDD and dual-booted with Windows 7. After a bit of tweaking I set about updating the native Intel drivers because it was only allowing me to ...
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When would I use FBDEV vs DRM vs DSS?
I'm interested in developing a graphics driver. I see that Linux supports three methods for writing graphics to the display device
FBDEV
DRM
DSS2
When would I use one versus the other?
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How do I change the framebuffer resolution at runtime without legacy /dev/fb0?
I have a server in production which was booted with a 1080p widescreen monitor attached and it used that when it automatically selected that resolution for the console on boot. Currently, it is ...
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Switching between two framebuffer programs
I have two programs (mplayer and a custom java application) which both present GUI using framebuffers. They run in separate processes. I want to be able to switch from one program to the other without ...
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How do I use the color palette (FBIOPUTCMAP)?
I am trying to track down the following issue in Debian Jessie on PowerPC. Per bogl-bterm package maintainer the issue is simply that bterm makes uses of FBIOPUTCMAP, see ref here.
So before even ...
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Can I change the X rotate the xf86-video-fbdev during execution?
Below is my /etc/X11/xorg.conf.d/1-fbdev.conf.
/etc/X11/xorg.conf.d/1-fbdev.conf
Section "Device"
Identifier "LCD"
Driver "fbdev"
Option "fbdev" "/dev/fb0"
Option "Rotate" "UD"
EndSection
I ...
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Why I need a framebuffer size larger then monitor size when transform destination area is smaller
I tried to remove 100px left & right the top of a 1366x768 screen (as below) using xrandr transformation. But I got an error about not enough framebuffer size.
$ xrandr --output LVDS1 --fb ...
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How to create the framebuffer file node?
I'm working with a limited embedded device - Linux environment - that uses a custom DirectFB implementation to draw a user interface in its video output.
I would like to exchange this method by a raw ...
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add monitor to linux tty framebuffer
Whenever I use my laptop at my desk, I usually connect it to an external display on DP-1. To switch the window manager output to this display, I can just use
xrandr --output DP-1 ...
However, ...
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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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Detecting intervals of inactivity in the tty? (to simulate setterm --blank in fbterm)
setterm --blank n allows me to configure the virtual terminal to automatically shut the display off after n minutes of inactivity. Unfortunately, I spend all my time in fbterm, where setterm does not ...
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