NetBSD Problem Report #49812

From  Fri Apr  3 18:13:34 2015
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Date: Fri,  3 Apr 2015 18:13:32 +0000 (UTC)
Subject: Pixbufs corruption with 24-bpp displays
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>Number:         49812
>Category:       xsrc
>Synopsis:       Pixbufs corruption with 24-bpp displays
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    xsrc-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 03 18:15:00 +0000 2015
>Originator:     Jared McNeill
>Release:        7.0_BETA
NetBSD empusa 7.99.5 NetBSD 7.99.5 (ODROID-C1) #466: Fri Apr  3 14:43:09 ADT 2015  Jared@Jared-PC:/cygdrive/d/netbsd/src/sys/arch/evbarm/compile/obj/ODROID-C1 evbarm

Not sure if this is an xsrc or pkg bug.

I'm seeing corrupt pixbufs in Midori etc on ODROID-C1 when running with a 24-bpp display. The problem disappears if I run at a different display depth.

It looks strangely exactly like the display corruption I've seen on i965 with drmkms. I can reproduce it easily with the "gtk-demo" app. Here is the expected result:

Here is the result of running the same test with a 24bpp framebuffer:
Using a 24-bpp framebuffer in X, run "gtk-demo" and double-click the "Pixbufs" test.

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