Re: F37 Change: Legacy Xorg Driver Removal (System-Wide Change proposal)

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On Fri, Apr 08, 2022 at 11:02:53AM +0200, Hans de Goede wrote:
> Note that for Fedora 36 we have already dropped efifb and replaced it
> with simpledrm:
> 
> https://fedoraproject.org/wiki/Changes/ReplaceFbdevDrivers
> 
> So this means that in our default configs we no longer have any
> fbdev drivers active.
> 
> And simpledrm can also be used with the kernels builtin vesa support
> on legacy BIOS systems, so in essence starting with F36 we will always
> have a drm/kms node available for the Xorg modesetting to bind to.
> 
> With the above Fedora *36* change in place the fbdev/vesa drivers
> will be practically completely unused, so I don't really expect
> any problems from this change.
> 
> As for odd hw out there, a lot of work has been the last couple
> of years to make sure that we have drm/kms drivers for almost all
> hw out there, esp. also focusing on weird server hw VGA cards.
> 
> So most hw will either be new enough to offer an efifb which
> simpledrm will turn into a drm/kms /dev/dri/card0 device. Or it
> will be old enough that it almost certainly will have
> a drm/kms driver.
> 
> And for the really odd duck out a vesa mode can be set on the kernel
> cmdline which simpledrm should then pick up:
> 
> https://www.kernel.org/doc/html/latest/admin-guide/svga.html
> https://www.systutorials.com/configuration-of-linux-kernel-video-mode/
> 
> So I believe that this change is fine.

It'd be great if this text could be incorporated into the Change
page.

Zbyszek
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