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Difference between revisions of "Uvesafb"
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== Kernel configuration == | == Kernel configuration == | ||
Before we emerge the required packages for uvesafb functionality, we have to configure the kernel properly. | |||
<br> | <br> | ||
{{Kernelop | {{Kernelop | ||
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}} | }} | ||
{{fancynote| Build the kernel, do not install the kernel and modules. You can choose uvesafb as a module, unlike vesa.}} | {{fancynote| Build the kernel (<tt>make</tt>), do not install the kernel and modules (<tt> make install modules_install</tt>). You can choose uvesafb as a module, unlike vesa.}} | ||
== Klibc == | == Klibc == | ||
Next, we emerge {{Package|dev-libs/klibc}}: | Next, we emerge {{Package|dev-libs/klibc}}. Klibc has to be compiled against a kernel that includes uvesafb support. This only has to be done once: | ||
<console> | <console> | ||
###i## emerge klibc | ###i## emerge klibc | ||
</console> | </console> | ||
== v86d == | == v86d == |
Revision as of 16:46, July 12, 2014
How to : Framebuffer: Userspace VESA VGA graphics support
Uvesafb is an improved framebuffer driver for Linux systems with some enhancements compared to vesa. Uvesafb can allow you to get a full-resolution console, even if you have installed a graphics driver that does not support full-resolution consoles. Examples of drivers like these: ati-drivers and NVidia-drivers.
Kernel configuration
Before we emerge the required packages for uvesafb functionality, we have to configure the kernel properly.
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
Build the kernel (make), do not install the kernel and modules ( make install modules_install). You can choose uvesafb as a module, unlike vesa.
Klibc
Next, we emerge No results. Klibc has to be compiled against a kernel that includes uvesafb support. This only has to be done once:
root # emerge klibc
v86d
No results is the userspace helper that runs x86 code in emulated environment. Uvesafb will not work without v86d. Now, we emerge v86d
:
root # emerge v86d
Back to kernel configuration
Reconfigure the kernel:
General Setup-> [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support (/usr/share/v86d/initramfs) Initramfs source file(s)
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:
root # boot-update
and then run:
root # reboot
and enjoy uvesafb!