Your message dated Sat, 10 Nov 2018 10:42:56 +0000
with message-id <1541846576.3542.38.ca...@adam-barratt.org.uk>
and subject line Closing bugs for updates included in 9.6
has caused the Debian Bug report #912462,
regarding stretch-pu: package xorg-server/2:1.19.2-1+deb9u5
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
912462: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912462
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--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: stretch
User: release.debian....@packages.debian.org
Usertags: pu

Control: block 908601 by -1

Hi,

I'd like to backport an upstream xorg-server patch to stable to fix
issue #908601. It fixes a kwin regression caused by Mesa >= 18.0. This
issue has already been fixed in xorg-server in unstable and testing.
However with backporting Mesa to stretch-backports this issue has also
been triggered with xorg-server in stretch. Since we don't backport
xorg-server to stretch-backports and the required patch for stretch is
very small I'd like to fix this issue via stretch-pu.

Attached is the debdiff between xorg-server 2:1.19.2-1+deb9u4 and
2:1.19.2-1+deb9u5.

Thanks,
Andreas
diff -u xorg-server-1.19.2/debian/changelog xorg-server-1.19.2/debian/changelog
--- xorg-server-1.19.2/debian/changelog
+++ xorg-server-1.19.2/debian/changelog
@@ -1,3 +1,12 @@
+xorg-server (2:1.19.2-1+deb9u5) stretch; urgency=medium
+
+  * Cherry-pick c2954b16c (glx: do not pick sRGB config for 32-bit RGBA
+    visual) from upstream. Fixes various blending issues with kwin and
+    Mesa >= 18.0 (i.e. Mesa from stretch-backports) (Closes: #908601).
+    Thanks to Nicholas D Steeves and Robert Trebula for testing!
+
+ -- Andreas Boll <ab...@debian.org>  Wed, 31 Oct 2018 17:58:03 +0100
+
 xorg-server (2:1.19.2-1+deb9u4) stretch-security; urgency=medium
 
   * Disable -logfile and -modulepath when running with elevated privileges.
diff -u xorg-server-1.19.2/debian/patches/series 
xorg-server-1.19.2/debian/patches/series
--- xorg-server-1.19.2/debian/patches/series
+++ xorg-server-1.19.2/debian/patches/series
@@ -12,0 +13 @@
+12_glx-do-not-pick-sRGB-config-for-32-bit-RGBA-visual.patch
only in patch2:
unchanged:
--- 
xorg-server-1.19.2.orig/debian/patches/12_glx-do-not-pick-sRGB-config-for-32-bit-RGBA-visual.patch
+++ 
xorg-server-1.19.2/debian/patches/12_glx-do-not-pick-sRGB-config-for-32-bit-RGBA-visual.patch
@@ -0,0 +1,31 @@
+commit c2954b16c8730c7ed8441fd8dba25900f3aed265
+Author: Tapani Pälli <tapani.pa...@intel.com>
+Date:   Tue Nov 28 09:23:29 2017 +0200
+
+    glx: do not pick sRGB config for 32-bit RGBA visual
+    
+    This fixes blending issues seen with kwin and gnome-shell when
+    32bit visual has sRGB capability set.
+    
+    Reviewed-by: Adam Jackson <a...@redhat.com>
+    Signed-off-by: Tapani Pälli <tapani.pa...@intel.com>
+    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103699
+    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103646
+    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103655
+
+diff --git a/glx/glxscreens.c b/glx/glxscreens.c
+index 73444152a..596d972e0 100644
+--- a/glx/glxscreens.c
++++ b/glx/glxscreens.c
+@@ -271,6 +271,11 @@ pickFBConfig(__GLXscreen * pGlxScreen, VisualPtr visual)
+         /* If it's the 32-bit RGBA visual, demand a 32-bit fbconfig. */
+         if (visual->nplanes == 32 && config->rgbBits != 32)
+             continue;
++        /* If it's the 32-bit RGBA visual, do not pick sRGB capable config.
++         * This can cause issues with compositors that are not sRGB aware.
++         */
++        if (visual->nplanes == 32 && config->sRGBCapable == GL_TRUE)
++            continue;
+         /* Can't use the same FBconfig for multiple X visuals.  I think. */
+         if (config->visualID != 0)
+             continue;

--- End Message ---
--- Begin Message ---
Version: 9.6

Hi,

The update referenced by each of these bugs was included in this
morning's stretch point release.

Regards,

Adam

--- End Message ---

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