These things actually exist in the real world now:
http://accessories.us.dell.com/sna/productdetail.aspx?sku=225-4429
http://accessories.us.dell.com/sna/productdetail.aspx?sku=320-9567
and most ridiculously,
http://accessories.us.dell.com/sna/productdetail.aspx?sku=225-4201
Once this is a real, specified property, I'll probably want to add
special handling of it in xrandr:
DP-3.8 connected primary 2560x1080+0+0 (normal left inverted right x
axis y axis) 673mm x 284mm
_GUID: 16 -34 -112 112 0 4 -36 38 -81 78 -30 27 0 0 0 22
On 06/12/2012 12:32 PM, Aaron Plattner wrote:
This property represents the globally-unique identifier of the connected
display, if one is available.
Signed-off-by: Aaron Plattner <[email protected]>
Reviewed-by: Andy Ritger <[email protected]>
---
randr.h | 1 +
randrproto.txt | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/randr.h b/randr.h
index 9cb9403..53e2660 100644
--- a/randr.h
+++ b/randr.h
@@ -183,5 +183,6 @@ typedef unsigned long XRandrModeFlags;
#define RR_PROPERTY_CLONE_LIST "CloneList"
#define RR_PROPERTY_BORDER "Border"
#define RR_PROPERTY_BORDER_DIMENSIONS "BorderDimensions"
+#define RR_PROPERTY_GUID "GUID"
#endif /* _RANDR_H_ */
diff --git a/randrproto.txt b/randrproto.txt
index e90b1cd..2190540 100644
--- a/randrproto.txt
+++ b/randrproto.txt
@@ -1856,6 +1856,17 @@ doesn't handle a mandatory property correctly.
2 = left/right and top/bottom borders can be specified independently
4 = all four borders can be specified independently
+ "GUID" aka RR_PROPERTY_GUID
+ Type: INTEGER
+ Format: 8
+ Num items: 16
+ Flags: Immutable
+ Range/List: -
+
+ Some display devices, such as DisplayPort 1.2 devices, have globally
+ unique identifiers. When such an identifier is available, this property
+ contains its raw bytes.
+
9.2 Properties introduced with version 1.2 of the RandR extension
@@ -1889,6 +1900,7 @@ Property Immutable Mandatory since
──────── ───────── ───────────────
Border yes not mandatory
BorderDimensions yes: static not mandatory
+GUID yes not mandatory
❧❧❧❧❧❧❧❧❧❧❧
--
Aaron
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