All Questions
Tagged with framebuffer xorg
8
questions
0
votes
1
answer
49
views
Xorg FBDEV refuses to use the specified framebuffer
I'm using Xorg with the FBDEV driver, configuration:
Section "Device"
Identifier "Device0"
Driver "fbdev"
Option "fbdev" "/dev/fb0"
...
- 59
0
votes
0
answers
413
views
Low-Latency method to read Xorg or DRM framebuffer
I am trying to build an application that can measure the latency/processing time of graphics frameworks on Linux.
My idea is to implement simple programs that react to an input event (e.g. mouse click)...
2
votes
1
answer
1k
views
Write on /dev/fb0 has no effect on GUI console
I run X in this way
/usr/bin/X vt07 -retro
to have the GUI on console 7 and the gray grid as background.
On console 1 I write
while [ 1 ] ; do cat /dev/random > /dev/fb0; done
and I see the ...
1
vote
0
answers
130
views
X writing top of screen to random parts of framebuffer - Xorg problem?
I have an ASUS laptop with an SIS graphics card. The default Xorg generated when I installed Debian (well, technically Raspbian Desktop) was at 640x480, yet it can easily do better as it's a 1280x800 ...
- 11
1
vote
0
answers
1k
views
Cannot run in framebuffer mode. error help
I'm using ParrotSec and the system I normally used gave an error last night and I could not solve it.
I start normally, then wait, but the KDE does not start and the screen remains black. I pressed ...
7
votes
2
answers
7k
views
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:...
1
vote
0
answers
975
views
How to inform Xorg about a resolution I have already set?
I'm trying to get my Banana Pi Pro to switch between 1920x1080 and 1280x720 resolutions on an HDMI screen. Both resolutions work fine if I set them in uEnv.txt:
disp.screen0_output_mode=1280x720p60
...
- 7,357
4
votes
1
answer
5k
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 get ...
- 1,003