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Diffstat (limited to 'xorg-server/hw/xfree86/modes')
-rw-r--r--xorg-server/hw/xfree86/modes/xf86Crtc.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86Crtc.c b/xorg-server/hw/xfree86/modes/xf86Crtc.c
index 35845e875..2a02c8507 100644
--- a/xorg-server/hw/xfree86/modes/xf86Crtc.c
+++ b/xorg-server/hw/xfree86/modes/xf86Crtc.c
@@ -3045,10 +3045,22 @@ handle_detailed_physical_size(struct detailed_monitor_section
if (det_mon->type == DT &&
det_mon->section.d_timings.h_size != 0 &&
det_mon->section.d_timings.v_size != 0) {
-
- p->output->mm_width = det_mon->section.d_timings.h_size;
- p->output->mm_height = det_mon->section.d_timings.v_size;
- p->ret = TRUE;
+ /* some sanity checking for aspect ratio:
+ assume any h / v (or v / h) > 2.4 to be bogus.
+ This would even include cinemascope */
+ if (((det_mon->section.d_timings.h_size * 5) <
+ (det_mon->section.d_timings.v_size * 12)) &&
+ ((det_mon->section.d_timings.v_size * 5) <
+ (det_mon->section.d_timings.h_size * 12))) {
+ p->output->mm_width = det_mon->section.d_timings.h_size;
+ p->output->mm_height = det_mon->section.d_timings.v_size;
+ p->ret = TRUE;
+ } else
+ xf86DrvMsg(p->output->scrn->scrnIndex, X_WARNING,
+ "Output %s: Strange aspect ratio (%i/%i), "
+ "consider adding a quirk\n", p->output->name,
+ det_mon->section.d_timings.h_size,
+ det_mon->section.d_timings.v_size);
}
}