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v4p: fix for some DOS device

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This commit is contained in:
Maxim Devaev 2025-03-27 04:36:35 +02:00
parent e3d8132237
commit afd305e87d
1 changed files with 9 additions and 0 deletions
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9
src/libs/drm/drm.c
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@ -666,6 +666,15 @@ static drmModeModeInfo *_find_best_mode(drmModeConnector *conn, uint width, uint
continue; // Discard interlaced
}
const float mode_hz = _get_refresh_rate(mode);
if (width == 640 && height == 416 && mode->hdisplay == 640 && mode->vdisplay == 480) {
// A special case for some ancient DOS device with VGA converter.
// @CapnKirk in Discord
if (hz > 0 && mode_hz < hz) {
best = mode;
best->vdisplay = 416;
break;
}
}
if (mode->hdisplay == width && mode->vdisplay == height) {
best = mode; // Any mode with exact resolution
if (hz > 0 && mode_hz == hz) {