ati-vga: Update mode on CRTC_PITCH change
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> Reviewed-by: Chad Jablonski <chad@jablonski.xyz> Message-ID: <3f54ff54a873a8f8a0cc5f14660703b4025a69e2.1775228029.git.balaton@eik.bme.hu> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
BALATON Zoltan committed
Apr 3, 2026 at 16:59 UTC
f4813f444abf77ba8dd0a2c57f42fbc122a760f7
1 file changed
+5
-1
hw/display/ati.c
+5
-1
@@ -743,7 +743,11 @@ static void ati_mm_write(void *opaque, hwaddr addr,
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s->regs.crtc_offset_cntl = data; /* FIXME */
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break;
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case CRTC_PITCH:
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- s->regs.crtc_pitch = data & 0x07ff07ff;
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+ data &= 0x07ff07ff;
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+ if (s->regs.crtc_pitch != data) {
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+ s->regs.crtc_pitch = data;
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+ ati_vga_switch_mode(s);
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+ }
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break;
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case 0xf00 ... 0xfff:
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/* read-only copy of PCI config space so ignore writes */