[PATCH 9/9] kernel/x86: remove DRM support

[Elliott Mitchell]

On Thu, Apr 27, 2023 at 12:50:52AM +0200, Stefan Lippers-Hollmann wrote:
> On 2023-04-19, Elliott Mitchell wrote:
> > Direct Rendering Manager is mainly for running X (possibly Wayland
> > too).  As OpenWRT is meant for networking devices, there is no need
> > for the support to be present.
> 
> That is only partially true, the Linux kernel is making a strong push
> away from deprecated (FB_*) graphics drivers to DRM based ones, with 
> kernel based mode setting this is getting more (any) attention for 
> console support as well. Even without getting anywhere near X/ Wayland,
> there is more than just a 80x25 tty on real hardware (and even VMs).

Real x86 hardware often has the capability to use a serial port as
console.  The conventional UEFI implementation fully supports this use
case.  I can well believe a number of manufacturers disabling the
functionality though.

VMs *can* have more than a 80x25 tty.  By the time you're getting to 4
or more VMs you should be thinking about disabling the functionality due
to the heavy overhead (unless the OS in the VM doesn't support serial
consoles).


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