vt: Reprogram display controller on KDSETMODE KD_TEXT for active windowHEADmain

When a graphical application (X.Org display server, Wayland compositor)
calls KDSETMODE to set the active VT back to KD_TEXT, vt(4) does not
reset the CRTC to point to its framebuffer, leaving the last image of
the graphical application visible instead of the text console until the
next VT switch.

Add a call to vd_postswitch to reset the CRTC, set VDF_INVALID to force
a redraw and schedule the flush timer, like vt(4) does in
vt_window_switch().

Sponsored by: Defenso

Signed-off-by: Quentin Thébault <quentin.thebault@defenso.fr>

Reviewed by:	vexeduxr
Pull request: https://github.com/freebsd/freebsd-src/pull/2308

0 files changed, 0 insertions, 0 deletions