Difference between revisions of "Uvesafb"
From Funtoo Linux
(→How to : Framebuffer: Userspace VESA VGA graphics support) |
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== ''How to'' : Framebuffer: Userspace VESA VGA graphics support == | == ''How to'' : Framebuffer: Userspace VESA VGA graphics support == | ||
| + | Uvesafb is an improved framebuffer driver for Linux systems with some enhancements compared to vesa. | ||
| + | =Kernel configuration= | ||
| − | + | <pre>Device Drivers -> | |
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<*> Connector - unified userspace <-> kernelspace linker ---> | <*> Connector - unified userspace <-> kernelspace linker ---> | ||
Graphics support -> | Graphics support -> | ||
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[*] Userspace VESA VGA graphics support | [*] Userspace VESA VGA graphics support | ||
| − | + | CONFIG_CONNECTOR=y | |
| − | + | CONFIG_FB_UVESA=y | |
| − | - | + | </pre> |
| + | |||
| + | Build the kernel, do not install the kernel and modules. Note, that you can choose uvesafb as module, unlike vesa. | ||
| + | |||
| + | =Klibc= | ||
| + | |||
| + | {{emerge klibc}} | ||
| + | |||
| + | This step is necessary because klibc has to be compiled against a kernel that includes uvesafb, you need to do it once, if you planning to update the kernel anytime. | ||
| + | |||
| + | =v86d= | ||
| + | <code>v86d</code> is the userspace helper that runs an x86 code in emulated environment. uvesafb will not work without v86d. | ||
| + | |||
| + | {{emerge v86d}} | ||
| + | |||
| + | =Back to kernel configuration= | ||
| + | Reconfigure the kernel | ||
| + | <pre>General Setup-> | ||
| + | (*)Initial RAM filesystem and RAM disk (initramfs/initrd) support | ||
| + | |||
| + | and use /usr/share/v86d/initramfs in Initramfs source file(s) | ||
| + | |||
| + | CONFIG_INITRAMFS_SOURCE="/usr/share/v86d/initramfs"</pre> | ||
| + | |||
| + | rebuild the kernel: make and install it, install the modules | ||
| − | add video=uvesafb: | + | =Bootloader configuration= |
| + | add <code>video=uvesafb:1440x900-32,mtrr:3,ywrap</code> (or similar) to your kernel command line, like in example <code>boot.conf</code> | ||
| − | + | <pre>boot { | |
| − | + | ||
generate grub | generate grub | ||
default "Funtoo Linux uvesafb" | default "Funtoo Linux uvesafb" | ||
timeout 3 | timeout 3 | ||
| − | + | } | |
"Funtoo Linux uvesafb" { | "Funtoo Linux uvesafb" { | ||
kernel bzImage-uvesafb[-v] | kernel bzImage-uvesafb[-v] | ||
| − | params += video=uvesafb:1440x900- | + | params += video=uvesafb:1440x900-32,mtrr:3,ywrap |
| + | }</pre> | ||
Then run | Then run | ||
| − | {{ | + | {{boot-update}} |
and | and | ||
| − | {{ | + | {{reboot}} |
| + | and enjoy uvesafb! | ||
Revision as of 18:27, 11 December 2010
Contents |
How to : Framebuffer: Userspace VESA VGA graphics support
Uvesafb is an improved framebuffer driver for Linux systems with some enhancements compared to vesa.
Kernel configuration
Device Drivers ->
<*> Connector - unified userspace <-> kernelspace linker --->
Graphics support ->
[*] Support for frame buffer devices --->
[*] Enable firmware EDID
Console display driver support ->
[*] Video mode selection support
[*] Video mode handling helpers
Frame buffer hardware drivers
[*] Userspace VESA VGA graphics support
CONFIG_CONNECTOR=y
CONFIG_FB_UVESA=y
Build the kernel, do not install the kernel and modules. Note, that you can choose uvesafb as module, unlike vesa.
Klibc
This step is necessary because klibc has to be compiled against a kernel that includes uvesafb, you need to do it once, if you planning to update the kernel anytime.
v86d
v86d is the userspace helper that runs an x86 code in emulated environment. uvesafb will not work without v86d.
Back to kernel configuration
Reconfigure the kernel
General Setup-> (*)Initial RAM filesystem and RAM disk (initramfs/initrd) support and use /usr/share/v86d/initramfs in Initramfs source file(s) CONFIG_INITRAMFS_SOURCE="/usr/share/v86d/initramfs"
rebuild the kernel: make and install it, install the modules
Bootloader configuration
add video=uvesafb:1440x900-32,mtrr:3,ywrap (or similar) to your kernel command line, like in example boot.conf
boot {
generate grub
default "Funtoo Linux uvesafb"
timeout 3
}
"Funtoo Linux uvesafb" {
kernel bzImage-uvesafb[-v]
params += video=uvesafb:1440x900-32,mtrr:3,ywrap
}
Then run Template:Boot-update and Template:Reboot and enjoy uvesafb!
