splash(4): Document how to use splash screen with vt(4)

Differential Revision:	https://reviews.freebsd.org/D45935
Sponsored by:		Beckhoff Automation GmbH & Co. KG

(cherry picked from commit 7504e0e3e517fe9f0c775b802f0eb30481b4c01d)

share/man/man4/splash.4

@@ -24,7 +24,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd December 31, 2015
+.Dd July 09, 2024
 .Dt SPLASH 4
 .Os
 .Sh NAME
@@ -203,7 +203,9 @@ have the following line in the kernel configuration file.
 .Pp
 .Dl device splash
 .Pp
-Next, edit
+Next for
+.Xr syscons 4
+, edit
 .Pa /boot/loader.conf
 (see
 .Xr loader.conf 5 )
@@ -240,6 +242,17 @@ splash_txt_load="YES"
 bitmap_load="YES"
 bitmap_name="/boot/splash.bin"
 .Ed
+.Pp
+For
+.Xr vt 4
+, edit
+.Pa /boot/loader.conf
+(see
+.Xr loader.conf 5 )
+and include the following lines:
+.Bd -literal -offset indent
+splash="/boot/images/freebsd-logo-rev.png"
+boot_mute="YES"
 .\".Sh DIAGNOSTICS
 .Sh SEE ALSO
 .Xr vidcontrol 1 ,
@@ -291,7 +304,7 @@ and
 modules were written by
 .An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org .
 .Sh CAVEATS
-Both the splash screen and the screen saver work with
+The screen saver work with
 .Xr syscons 4
 only.
 .Sh BUGS