When changing line length we need to update display parameters so call
mode change when changing CRTC_PITCH if the value has changed.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
hw/display/ati.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/display/ati.c b/hw/display/ati.c
index 3976f5f01c..07c0961b61 100644
--- a/hw/display/ati.c
+++ b/hw/display/ati.c
@@ -758,7 +758,11 @@ static void ati_mm_write(void *opaque, hwaddr addr,
s->regs.crtc_offset_cntl = data; /* FIXME */
break;
case CRTC_PITCH:
- s->regs.crtc_pitch = data & 0x07ff07ff;
+ data &= 0x07ff07ff;
+ if (s->regs.crtc_pitch != data) {
+ s->regs.crtc_pitch = data;
+ ati_vga_switch_mode(s);
+ }
break;
case 0xf00 ... 0xfff:
/* read-only copy of PCI config space so ignore writes */
--
2.41.3