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Merge 25a395aff8 into e98bd7cde2

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Collin 2025-07-04 17:29:13 +02:00 committed by GitHub
parent e98bd7cde2 25a395aff8
commit 5da4da9dbb
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GPG Key ID: B5690EEEBB952194
1 changed files with 16 additions and 3 deletions
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19
hw/xfree86/modes/xf86Crtc.c
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@ -1449,12 +1449,25 @@ preferredMode(ScrnInfoPtr pScrn, xf86OutputPtr output)
{ {
const char *preferred_mode = NULL; const char *preferred_mode = NULL;
/* Check for a configured preference for a particular mode */ /* First: user-configured preferred mode */
preferred_mode = xf86GetOptValString(output->options, preferred_mode = xf86GetOptValString(output->options, OPTION_PREFERRED_MODE);
OPTION_PREFERRED_MODE);
if (preferred_mode) if (preferred_mode)
return preferred_mode; return preferred_mode;
/* Try to find a mode with ~75Hz refresh rate */
DisplayModePtr mode = output->probed_modes;
while (mode) {
/* Some drivers don’t populate VRefresh—manually calculate it */
float refresh = 0.0f;
if (mode->HTotal > 0 && mode->VTotal > 0)
refresh = ((float)mode->Clock * 1000.0f) /
((float)mode->HTotal * (float)mode->VTotal);
if ((int)(refresh + 0.5f) >= 75)
return mode->name;
mode = mode->next;
}
/* Fallback: use first mode in display list */
if (pScrn->display->modes && *pScrn->display->modes) if (pScrn->display->modes && *pScrn->display->modes)
preferred_mode = *pScrn->display->modes; preferred_mode = *pScrn->display->modes;