The framebuffer tag has no wiki summary.
1
vote
0answers
12 views
Howto change font size in graphics when using Framebuffer device?
I am using libFB to create display for a live vehicle but cannot find a way to change a font size. Please help.
2
votes
1answer
124 views
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 ...
2
votes
1answer
221 views
How do I start a gui framebuffer (no X) application on startup instead of console login prompt?
I have a python application that uses pygame to access the framebuffer directly without using X. I want to start this application on startup instead of showing the console login prompt. I haven't ...
0
votes
1answer
377 views
Writes to FrameBuffer /dev/fb0 do not seem to change graphics screen
In attempting to write directly to the graphics frame buffer /dev/fb0 , (Ubuntu 12.04) , the graphics screen does not change.
Has Ubuntu 12.04 invalidated the use of /dev/fb0 , or does it need to be ...
1
vote
0answers
174 views
Problems when using the framebuffer device directly
I am writing a program using the framebuffer device directly and I have three problems there.
1) The only way I can set the screen resolution correct is by passing the kernel option during boot:
...
2
votes
0answers
175 views
How to redirect and use the framebuffer?
I need to work on the framebuffer to record what is being rendered.
Now, I figure out how to convert the framebuffer in an image, I'm currently unable to obtain a constant stream of data from the fb ...
4
votes
1answer
195 views
Specify Monitor For Linux Console
Does the kernel, framebuffer, or a framebuffer driver (uvesafb) have an option to specify the video-card output to use?
The kernel only outputs to one monitor:
Kernel message buffer (before and ...
3
votes
0answers
275 views
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 ...
4
votes
1answer
245 views
Pivot in text mode (no X) (Pivot = rotated 90 degrees)
How to get rotated video in text mode (no X), even during booting sequence ?
OS: Linux
Graphics card: mostly ATI, but curious about NVida and Intel solutions.
2
votes
0answers
165 views
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 ...
2
votes
1answer
397 views
How to increase the speed of a text console (kernel mode setting)?
On a Fedora 17 system (i915 hardware) KMS works out of the box - and using the console (i.e. Ctrl+Alt+F2 etc.) is very framebuffer-like. To the point that scrolling through a man page or cat log-files ...
2
votes
1answer
522 views
What is a framebuffer device and is it required to obtain a higher resolution?
I am running a gentoo guest OS on qemu-kvm. I can only get resolution of 800x600 in it. I want to be able to get a higher screen resolution.
xrandr gives the following output :
xrandr: Failed too ...
2
votes
0answers
102 views
When would I use FBDEV vs DRM vs DSS?
I'm new to Linux graphics, and 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 ...
7
votes
4answers
7k views
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 ...
3
votes
2answers
5k views
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?
5
votes
1answer
244 views
Embedded linux LCD not calibrated
I have attached a new LCD to my embedded Linux device and when I run the system I found that it is shifted to the right. (the display starts from the middle of the LCD)
I found 2 frame buffer drivers ...
0
votes
1answer
1k views
How to run an app in a framebuffer?
If I can see a movie from the console (like in this post), then how can I use other apps like Firefox from the console? I'm looking for something that works in Ubuntu, Fedora, or OpenBSD.
2
votes
1answer
638 views
Framebuffer on OpenBSD?
I am migrating from Linux to OpenBSD, and one of the things I miss from my old OS is how even the consoles looked nice (so nice you could actually watch movies in there) under framebuffer using a ...
3
votes
2answers
4k views
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 ...
2
votes
2answers
998 views
Creating a boot splash screen
I've been designing a Linux distro and trying to incorporate a nice user experience into it in the form of pleasing art and an interface that won't confuse or overwhelm first-time Linux users.
The ...
7
votes
1answer
534 views
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 ...
4
votes
1answer
972 views
Hung system call
So I'm working with a custom kernel module that I'm writing a python front end for. The kernel module works, and it adds a framebuffer device file to /dev/fb1. I can read and write to it fine. I've ...
