From 63419b0b29b06134fcd2ae603d32efbeccbc619e Mon Sep 17 00:00:00 2001
From: RichardG867 <richardg867@gmail.com>
Date: Wed, 14 Apr 2021 17:43:59 -0300
Subject: [PATCH] Add DPMS support to Trident TGUI

---
 src/video/vid_tgui9440.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/video/vid_tgui9440.c b/src/video/vid_tgui9440.c
index a23fe789d..9dd5fe081 100644
--- a/src/video/vid_tgui9440.c
+++ b/src/video/vid_tgui9440.c
@@ -322,6 +322,11 @@ void tgui_out(uint16_t addr, uint8_t val, void *p)
 		break;
 
                 case 0x3CF:
+                if (svga->gdcaddr == 0x23)
+                {
+                        svga->dpms = !!(val & 0x03);
+                        svga_recalctimings(svga);
+                }
                 if (tgui->type == TGUI_9400CXI && svga->gdcaddr >= 16 && svga->gdcaddr < 32)
                 {
                         old = tgui->ext_gdc_regs[svga->gdcaddr & 15];