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Only add default modes if EDID supports continuous-frequency

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When an EDID is present, only add the default mode pool if the
continuous-frequency bit is set in the EDID.  Should fix bugs
like 18512.
This commit is contained in:
Alex Deucher 2008-11-13 15:00:30 -05:00
parent c232f3d673
commit 81fd17f5f4
1 changed files with 11 additions and 3 deletions
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14
hw/xfree86/modes/xf86Crtc.c
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@ -1418,7 +1418,7 @@ xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
{
xf86OutputPtr output = config->output[o];
DisplayModePtr mode;
DisplayModePtr config_modes = NULL, output_modes, default_modes;
DisplayModePtr config_modes = NULL, output_modes, default_modes = NULL;
char *preferred_mode;
xf86MonPtr edid_monitor;
XF86ConfMonitorPtr conf_monitor;
@ -1426,6 +1426,7 @@ xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
int min_clock = 0;
int max_clock = 0;
double clock;
Bool add_default_modes = TRUE;
enum { sync_config, sync_edid, sync_default } sync_source = sync_default;
while (output->probed_modes != NULL)
@ -1476,6 +1477,11 @@ xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
int i;
Bool set_hsync = mon_rec.nHsync == 0;
Bool set_vrefresh = mon_rec.nVrefresh == 0;
struct disp_features *features = &edid_monitor->features;
/* if display is not continuous-frequency, don't add default modes */
if (!GTF_SUPPORTED(features->msc))
add_default_modes = FALSE;
for (i = 0; i < sizeof (edid_monitor->det_mon) / sizeof (edid_monitor->det_mon[0]); i++)
{
@ -1532,8 +1538,10 @@ xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
mon_rec.vrefresh[0].hi = 62.0;
mon_rec.nVrefresh = 1;
}
default_modes = xf86GetDefaultModes (output->interlaceAllowed,
output->doubleScanAllowed);
if (add_default_modes)
default_modes = xf86GetDefaultModes (output->interlaceAllowed,
output->doubleScanAllowed);
/*
* If this is not an RB monitor, remove RB modes from the default