Skip to main content

All Questions

Tagged with
2 votes
0 answers
153 views

How does this whole FrameBuffer, DRM, KMS stuff work in todays Linux / Kernel?

I'm confused about what is what nowadays with Linux and video support for the console interface vs X. Do the /dev/fb* items only relate to the old original framebuffer support? Does DRM create/support ...
user3161924's user avatar
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)...
Andreas Schmid's user avatar
0 votes
0 answers
1k views

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 ...
Obsessive's user avatar
1 vote
0 answers
821 views

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 ...
Yaron's user avatar
  • 233
3 votes
0 answers
2k 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 ...
Janus Troelsen's user avatar
4 votes
2 answers
2k 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 ...
maxschlepzig's user avatar
  • 57.9k
31 votes
2 answers
13k 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 ...
user5184's user avatar
  • 705