From cd350d8548484b12fff921e743d621fd262c2837 Mon Sep 17 00:00:00 2001
From: Shwartsman <stanislav.shwartsman@intel.com>
Date: Sat, 16 Dec 2023 08:45:53 +0200
Subject: [PATCH] adopting hack listed in
 https://github.com/bochs-emu/Bochs/issues/147 to solve hang

---
 bochs/iodev/display/voodoo.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bochs/iodev/display/voodoo.cc b/bochs/iodev/display/voodoo.cc
index ffc76a158..2312acee1 100644
--- a/bochs/iodev/display/voodoo.cc
+++ b/bochs/iodev/display/voodoo.cc
@@ -1070,7 +1070,8 @@ bool bx_voodoo_1_2_c::update_timing(void)
   BX_INFO(("Voodoo output %dx%d@%uHz", v->fbi.width, v->fbi.height, (unsigned)v->vertfreq));
   v->fbi.swaps_pending = 0;
   v->vtimer_running = 1;
-  bx_virt_timer.activate_timer(s.vertical_timer_id, (Bit32u)s.vdraw.vtotal_usec, 1);
+  if (v->vidclk != 0.0)
+    bx_virt_timer.activate_timer(s.vertical_timer_id, (Bit32u)s.vdraw.vtotal_usec, 1);
   return 1;
 }