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Refuse to create tiny modes from EDID detailed timing.

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This commit is contained in:
Adam Jackson 2007-03-28 12:03:19 -04:00
parent 8522044635
commit 5ba4d9eedf
2 changed files with 26 additions and 0 deletions
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13
hw/xfree86/ddc/edid_modes.c
View File

@ -107,6 +107,19 @@ DDCModeFromDetailedTiming(int scrnIndex, struct detailed_timings *timing,
{
DisplayModePtr Mode;
/*
* Refuse to create modes that are insufficiently large. 64 is a random
* number, maybe the spec says something about what the minimum is. In
* particular I see this frequently with _old_ EDID, 1.0 or so, so maybe
* our parser is just being too aggresive there.
*/
if (timing->h_active < 64 || timing->v_active < 64) {
xf86DrvMsg(scrnIndex, X_INFO,
"%s: Ignoring tiny %dx%d mode\n", __func__,
timing->h_active, timing->v_active);
return NULL;
}
/* We don't do stereo */
if (timing->stereo) {
xf86DrvMsg(scrnIndex, X_INFO,

13
hw/xfree86/modes/xf86EdidModes.c
View File

@ -197,6 +197,19 @@ DDCModeFromDetailedTiming(int scrnIndex, struct detailed_timings *timing,
{
DisplayModePtr Mode;
/*
* Refuse to create modes that are insufficiently large. 64 is a random
* number, maybe the spec says something about what the minimum is. In
* particular I see this frequently with _old_ EDID, 1.0 or so, so maybe
* our parser is just being too aggresive there.
*/
if (timing->h_active < 64 || timing->v_active < 64) {
xf86DrvMsg(scrnIndex, X_INFO,
"%s: Ignoring tiny %dx%d mode\n", __func__,
timing->h_active, timing->v_active);
return NULL;
}
/* We don't do stereo */
if (timing->stereo) {
xf86DrvMsg(scrnIndex, X_INFO,