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1 vote
0 answers
97 views

Frame buffer driver(altfb) not working with a 24 bit display

I am developing an embedded Linux system with a 24 bit LCD display. I use terasic linux-socfpga to compile the kernel and I want to use the altfb driver to show the desktop in LCD. For that, I copied ...
Arun Kumar K S's user avatar
2 votes
2 answers
4k views

How can I enable TTY console?

I'm running Linux (Debian 10) on a Chromebook (Eve) using a stock Chrome OS kernel (4.4.x) with minor modifications. Everything runs (mostly) fine except that TTY console cannot be accessed via Ctrl+...
seamux's user avatar
  • 148
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
10 votes
2 answers
6k views

What happened to `vga=ask` in newer kernels?

I used to activate framebuffer mode in the "older" kernels with vga=ask, and later setting it to a value, once I've figured out which one works best for me. Now, this option seems to be gone, the 3....
polemon's user avatar
  • 11.6k
6 votes
1 answer
2k views

How to enable VESA framebuffer as default in NetBSD 6.1

When booting NetBSD, the old Tecra 720CDT that I have, works quite nicely in 1024x768x15 mode with vesa fb. I always have to activate VESA when booting the system: > vesa on > vesa 0x116 > ...
polemon's user avatar
  • 11.6k
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
4 votes
1 answer
6k 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 ...
Falmarri's user avatar
  • 13.1k