[mythtv-users] disable wayland [was] mythfrontend core dumps after upgrade to Ubuntu 24.04

[John Hoyt]

On Fri, Jan 2, 2026 at 12:00 PM Mike Perkins via mythtv-users <
mythtv-users at mythtv.org> wrote:

> On 02/01/2026 16:42, John Hoyt wrote:
> > On Fri, Jan 2, 2026 at 11:32 AM Alain via mythtv-users <
> > Another couple ideas, did the ubuntu upgrade remove (or not update) the
> > nvidia-vaapi-driver?   Also, did Ubuntu possibly switch you from Xorg to
> > Wayland?
> >
> Off the immediate topic, perhaps, but still relevant to most mythtv users:
> is
> there a way to permanently disable Wayland? I'm getting obscure error
> messages
> while running other programs and wondered.
>
> I'm just in the process of upgrading from Debian Bookworm to Trixie.
>

Several ways, the easiest if to tell your display manager to disable it:

For gdm3
edit /etc/gdm3/custom.conf
add or uncomment:

WaylandEnable=false


For sddm
edit /etc/sddm.conf or add/edit a file in /etc/sddm.conf.d
find (or add) the [Wayland] section and add:

Enable=false
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