On Tue, 2010-08-31 at 14:19 +0000, The Fungi wrote: > On Tue, Aug 31, 2010 at 09:49:53AM -0400, Adam Jackson wrote: > > It's possible but improbable. What kernel are you running anyway? > > That system had 2.6.35-rc5 i686 with PAE at the last boot (needed > some patches for Wacom BT/HID support which got integrated in rc4 or > rc5). I'll most likely replace that with a 2.6.35 release version > next time I get around to rebooting, unless 2.6.36 is out by then.
Sigh, okay. You should be able to get the complete EDID block out
of /sys/class/drm/card0/*/edid, at least if you have in your kernel:
commit 7466f4cc508878a8328dff1c328a2b4108888d2e
Author: Adam Jackson <a...@redhat.com>
Date: Mon Mar 29 21:43:23 2010 +0000
drm/edid: Remove arbitrary EDID extension limit
Signed-off-by: Adam Jackson <a...@redhat.com>
Signed-off-by: Dave Airlie <airl...@redhat.com>
which should already be present in 2.6.35. But the X driver looks like
it never sets MONITOR_EDID_COMPLETE_RAWDATA, which means the X core
doesn't know that any sections beyond the first are present, so it won't
ever hand back more than 128 bytes to clients. Boo.
This should help:
---
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 6f7e5f1..886c58f 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -731,6 +731,7 @@ drmmode_output_get_modes(xf86OutputPtr output)
drmModePropertyPtr props;
struct fixed_panel_lvds *p_lvds;
drmModeModeInfo *mode_ptr;
+ xf86MonPtr mon = NULL;
/* look for an EDID property */
for (i = 0; i < koutput->count_props; i++) {
@@ -751,14 +752,13 @@ drmmode_output_get_modes(xf86OutputPtr output)
drmModeFreeProperty(props);
}
- if (drmmode_output->edid_blob)
- xf86OutputSetEDID(output,
- xf86InterpretEDID(output->scrn->scrnIndex,
-
drmmode_output->edid_blob->data));
- else
- xf86OutputSetEDID(output,
- xf86InterpretEDID(output->scrn->scrnIndex,
- NULL));
+ if (drmmode_output->edid_blob) {
+ mon = xf86InterpretEDID(output->scrn->scrnIndex,
+ drmmode_output->edid_blob->data);
+ if (drmmode->edid_blob->length > 128)
+ mon->flags |= MONITOR_EDID_COMPLETE_RAWDATA;
+ }
+ xf86OutputSetEDID(output, mon);
/* modes should already be available */
for (i = 0; i < koutput->count_modes; i++) {
---
- ajax
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