Bug 52150

Summary: Graphical objects not drawn with SNA acceleration on GM45
Product: xorg Reporter: sergio.callegari
Component: Driver/intelAssignee: Chris Wilson <chris>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: 7.6 (2010.12)   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
libreoffice file for testing
none
SNA screenshot (with issues)
none
UXA screenshot (OK) none

Description sergio.callegari 2012-07-16 12:48:09 UTC 
In order to solve other issues, I am now running the latest intel drivers, together with kernel 3.4.4 on a DELL E6500 with intel graphics and Kubuntu linux 12.04 64 bit. Since these drivers support sna acceleration, I have decided to give it a try.  Most things appear to be working. However, major issues exist with the libreoffice application. Specifically, running Libreoffice Impress some graphical elements are not shown on screen at all.

Hardware:
Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller

Software:
Kernel 3.4.4 
(from ubuntu mainline PPA)

libdrm 2.4.37 + git 120716
mesa 8.1 + git 120608
xserver-video-intel 2.19 + git 120713
(this later stuff from the oibaf graphics drivers PPA, aka Fabio Pedretti's PPA)

To reproduce:
1) put accelmethod sna in xorg.conf
2) Run libreoffice impress

Actual result:
1) See that in many slides, the background appears gray instead of white as it should.
2) See that many mathematical formulas (OLE objects in libreoffice) are not displayed.

Reverting to uxa acceleration on the same driver fixes the visual issues.
Comment 1 Chris Wilson 2012-07-16 12:51:15 UTC 
Please attach a good/bad screenshot so that I can be sure I'm hunting the same issue.
Comment 2 sergio.callegari 2012-07-16 13:19:22 UTC 
Created attachment 64272 [details]
libreoffice file for testing

Tested with libreoffice 3.5.5
Comment 3 sergio.callegari 2012-07-16 13:19:53 UTC 
Created attachment 64273 [details]
SNA screenshot (with issues)
Comment 4 sergio.callegari 2012-07-16 13:20:18 UTC 
Created attachment 64275 [details]
UXA screenshot (OK)
Comment 5 Chris Wilson 2012-07-16 13:51:59 UTC 
commit 907a2a7c97514d3f7610648ed87c7042a857f786
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Jul 16 14:47:03 2012 +0100

    sna/trapezoids: Fix inplace unaligned fills (on gen4)
    
    Reported-by: Sergio Callegari <sergio.callegari@gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=52150
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>


Haven't checked the OLE objects just yet, though very likely to be the same bug.
Comment 6 sergio.callegari 2012-07-17 21:55:43 UTC 
As soon as the current git, with the above commit, gets into an updated deb on the ubuntu ppa, I'll provide some feedback about the libreoffice OLE.  Thanks for the very quick response!
Comment 7 sergio.callegari 2012-07-20 09:46:47 UTC 
I confirm that it seems to be ok with the latest packaged git driver (20/7/12)

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