Basic drivers, installation and regular session

Ahmad Samir ahmadsamir3891 at gmail.com
Wed Jun 10 10:20:18 UTC 2015


On 10 June 2015 at 02:11, Rick Stevens <ricks at alldigital.com> wrote:
>
>
> If you installed a desktop spin (Gnome, Xfce, MATE, KDE), then the
> open source drivers were installed (e.g. nouveau for nVidia chipsets,
> ati_drv/radeon_drv for AMD chipsets, etc.)
>

Installing using "basic graphics mode" adds "nomodeset" (which
disables KMS (Kernel Mode Setting)):
- to the kernel cmdline in the Live session
- to /boot/grub2/grub.cfg (or /boot/efi/EFI/fedora/grub.cfg on UEFI systems)
- to /etc/default/grub (in the GRUB_CMDLINE_LINUX entry)

that means most of the open source drivers (intel, radeon, nouveau)
won't work as they, AFAIK, require KMS. Instead the system will be
using the VESA or the FBDEV X11 drivers.

So post-installation if you want to use the open source driver for
your gfx chip you'll need to modify grub.cfg; or modify
/etc/default/grub and then use grub2-mkconfig to regenerate grub.cfg .

> If you want the vendor-provided ones, you need to install the
> appropriate akmod-whatever or kmod-whatever driver(s) you want.

For vendor-provided/proprietary drivers, nomodeset isn't a problem as
the proprietary drivers don't use KMS anyway (at the current time at
least).

-- 
Ahmad Samir


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