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https://wiki.gentoo.org/wiki/Framebuffer
The framebuffer's original function is as a video RAM cache to allow more flexibility to (older) video cards.Many newer cards come with framebuffers on board, which are often already compatible with many operating systems. Enabling framebuffer support in the Linux kernel will often cause graphical artifacts or black screen displays.
https://www.kernel.org/doc/html/latest/fb/fbcon.html
The framebuffer console can be enabled by using your favorite kernel configuration tool. It is under Device Drivers->Graphics Support->Frame buffer Devices->Console display driver support->Framebuffer Console Support. Select ‘y’ to compile support statically or ‘m’ for module support. The module will be fbcon.
https://how-to.fandom.com/wiki/How_to_configure_the_Linux_kernel/drivers/video
Howto configure the Linux kernel / drivers / video Video configuration Option: FB Kernel Versions: 2.6.15.6 ... (on/off/module) Support for frame buffer devices The frame buffer device provides an abstraction for the graphics hardware. It represents the frame buffer of some video hardware and allows application software to access the graphics hardware through a well-defined interface, so the ...
https://en.wikipedia.org/wiki/Linux_framebuffer
Linux has generic framebuffer support since 2.1.109 kernel. It was originally implemented to allow the kernel to emulate a text console on systems such as the Apple Macintosh that do not have a text-mode display, and was later expanded to Linux's originally supported IBM PC compatible platform.
https://www.kernel.org/doc/html/latest/fb/intelfb.html
select at what offset in MB of the logical memory to allocate the framebuffer memory. The intent is to avoid the memory blocks used by standard graphics applications (XFree86). Depending on your usage, adjust the value up or down, (0 for maximum usage, 63/127 MB for the least amount).
https://www.linuxquestions.org/questions/linux-kernel-70/framebuffer-kernel-config-670668/
Sep 17, 2008 · Hi, I have compiled and installed a 2.6.20-smp kernel but it seems that I can either enable framebuffer with vga=791 boot parameter but no longer be able to run X, or leave out the vga=791 in the boot parameter and be able to run X.
https://www.linux.com/news/44-linux-kernel-long-term-support-release-now-available/
Jan 11, 2016 · Linus Torvalds yesterday released the Linux 4.4 kernel. This is a long-term support (LTS) release, as was determined at the Linux Kernel Summit and announced in October by Greg Kroah-Hartman, who will maintain it for 2 years. This release checks in at more than 20.8 million lines of code, which is up considerably from Version 4.1, […]Author: Amber Ankerholz
https://www.linuxquestions.org/questions/linux-kernel-70/framebuffer-support-for-intel-graphics-controller-719987/
Apr 18, 2009 · Framebuffer support for Intel Graphics Controller Whenever I try to compile the kernel from source (basically to disable modules I do not need and also to change the boot logo) and boot with vga=773 option I end up getting either a blank screen while boot-up or a message saying the 773 video resolution is not supported.
http://www.tldp.org/HOWTO/pdf/Framebuffer-HOWTO.pdf
2.0.x kernels do not support framebuffer devices, but it is possible someday someone will backport the code from the 2.1.x kernels to 2.0.x kernels. There is an exception to that rule in that the 0.9.x kernel port for m68k platforms does have the framebuffer device support included.
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