debian/changelog | 9 ++
debian/patches/182_negative_sync_transitions.patch | 69 +++++++++++++++++++++
debian/patches/series | 1
3 files changed, 79 insertions(+)
New commits:
commit 30d1ef930935da74f20d7461b13d277ff8a1b06f
Author: Bryce Harrington <br...@bryceharrington.org>
Date: Fri Aug 14 11:25:54 2009 -0700
Patch to fix the random blanking issue
diff --git a/debian/changelog b/debian/changelog
index 596dd63..25f578b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+xorg-server (2:1.6.3-1ubuntu2) karmic; urgency=low
+
+ * Add 182_negative_sync_transitions.patch: Upstream cherrypick.
+ Fix random blanking display when system is not idle, caused by
+ mishandling of negative transition triggers in XSync.
+ (LP: #397839)
+
+ -- Bryce Harrington <br...@ubuntu.com> Fri, 14 Aug 2009 11:21:09 -0700
+
xorg-server (2:1.6.3-1ubuntu1) karmic; urgency=low
* Merge from Debian unstable.
diff --git a/debian/patches/182_negative_sync_transitions.patch
b/debian/patches/182_negative_sync_transitions.patch
new file mode 100644
index 0000000..273f298
--- /dev/null
+++ b/debian/patches/182_negative_sync_transitions.patch
@@ -0,0 +1,69 @@
+From db568f9eabf3450d8a023597ff007df355b13ea8 Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutte...@who-t.net>
+Date: Thu, 13 Aug 2009 06:37:00 +0000
+Subject: Xext: fix up wrong conditions for negative sync transitions.
+
+If the counter had a value higher than the trigger value for a negative
+transition, the trigger value did not get set.
+
+The correct sequence of checks is:
+if (positive transition)
+ if (counter value < trigger value)
+ set up trigger
+if (negative transition)
+ if (counter value > trigger value)
+ set up trigger
+
+Red Hat Bug 501601 <https://bugzilla.redhat.com/show_bug.cgi?id=501601>
+
+Signed-off-by: Peter Hutterer <peter.hutte...@who-t.net>
+---
+diff --git a/Xext/sync.c b/Xext/sync.c
+index 5f4ce56..667f8ab 100644
+--- a/Xext/sync.c
++++ b/Xext/sync.c
+@@ -962,28 +962,24 @@ SyncComputeBracketValues(SyncCounter *pCounter, Bool
startOver)
+ pnewltval = &psci->bracket_less;
+ }
+ }
+- else if ( (pTrigger->test_type == XSyncPositiveTransition &&
++ else if (pTrigger->test_type == XSyncNegativeTransition &&
+ ct != XSyncCounterNeverIncreases)
+- ||
+- (pTrigger->test_type == XSyncNegativeTransition &&
++ {
++ if (XSyncValueGreaterThan(pCounter->value, pTrigger->test_value) &&
++ XSyncValueGreaterThan(pTrigger->test_value, psci->bracket_less))
++ {
++ psci->bracket_less = pTrigger->test_value;
++ pnewltval = &psci->bracket_less;
++ }
++ }
++ else if (pTrigger->test_type == XSyncPositiveTransition &&
+ ct != XSyncCounterNeverDecreases)
+- )
+ {
+- if (XSyncValueLessThan(pCounter->value, pTrigger->test_value))
++ if (XSyncValueLessThan(pCounter->value, pTrigger->test_value) &&
++ XSyncValueLessThan(pTrigger->test_value, psci->bracket_greater))
+ {
+- if (XSyncValueLessThan(pTrigger->test_value,
+- psci->bracket_greater))
+- {
+- psci->bracket_greater = pTrigger->test_value;
+- pnewgtval = &psci->bracket_greater;
+- }
+- else
+- if (XSyncValueGreaterThan(pTrigger->test_value,
+- psci->bracket_less))
+- {
+- psci->bracket_less = pTrigger->test_value;
+- pnewltval = &psci->bracket_less;
+- }
++ psci->bracket_greater = pTrigger->test_value;
++ pnewgtval = &psci->bracket_greater;
+ }
+ }
+ } /* end for each trigger */
+--
+cgit v0.8.2
diff --git a/debian/patches/series b/debian/patches/series
index 58ab3d2..65bc1e4 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -36,3 +36,4 @@ fedora-pci-primary.diff
179_glx_cleanup_drawables.patch
180_fedora_no_synaptics_mouse_synthesis.patch
181_fedora_log_proc_cmdline.patch
+182_negative_sync_transitions.patch
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