Bug 25415

Summary: Google Earth - Clamped Polygons Not Supported
Product: Mesa Reporter: Valent Turkovic <valent.turkovic>
Component: Drivers/DRI/i915Assignee: Ian Romanick <idr>
Status: RESOLVED MOVED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: brian.m.hill
Version: unspecified   
Hardware: x86 (IA32)   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: dmesg
Xorg.0.log

Description Valent Turkovic 2009-12-03 05:57:58 UTC
Hi, I have HP Mini 5101 netbook with Intel 945GME graphics chip running Fedora 12.

When I install latest Google Earth 5.1 (and also tried with 5.0) I get this error:
Clamped Polygons Not Supported/Clamped polygons will only be shown in outline on your machine. Your graphics card is not capable of supporting this feature.

I can try to ignore this error but there are lots of polygons that flash wildly and randomly on the screen, it looks really bad :(

I have tried running Google Earth under Windows with same version of Google Earth and I this issue isn't present there, you can see polygons and they work ok.

This looks to me as a intel driver related bug. Is there a way to make Google Earth and Intel play well together or I need to wait a bug fix?

Do you need some additional information? If you need it just say which info you need.

Cheers!
Comment 1 Valent Turkovic 2009-12-04 09:52:25 UTC
I have tested Google Earth on much older laptop; IBM R52 with Intel 915GM on
Fedora 11 and there are no issues.

I haven't tried using Fedora 12 on IBM R52 with Intel 915GM.

How to make this work on Fedora 12 with Intel 945 graphics chip?  
Comment 2 Ian Romanick 2009-12-04 16:13:33 UTC
Google Earth has worked in the past, so I'm not sure what could cause it to report some feature as missing.  That's weird.  I don't have any idea what they could even possibly mean by "clamped polygons."

I'm fairly certain that this is a 3D issue, so I'm reassigning it to Mesa.
Comment 3 Valent Turkovic 2009-12-10 00:30:17 UTC
Created attachment 31918 [details]
dmesg
Comment 4 Valent Turkovic 2009-12-10 00:30:53 UTC
Created attachment 31919 [details]
Xorg.0.log
Comment 5 Valent Turkovic 2009-12-10 00:32:35 UTC
I posted my log files, I hope that helps.

How can I help to further troubleshoot this issue?
Comment 6 Eric Anholt 2012-08-26 20:25:37 UTC
We were never able to make any sense of what that google earth message meant.  Do you still have this issue with current googleearth?
Comment 7 Dami 2013-05-24 16:01:59 UTC
It looks like Google Earth is using the term clamped polygons to refer to alpha-blended shapes. See : http://www.mwcog.org/clrp/projects/current/ge_intro.asp#clamped

I still have the problem on ArchLinux x86-64 with Google Earth (x86) on my HD 3000.
Comment 8 Elizabeth 2017-10-27 21:08:08 UTC
Hello, is this still valid with latest SW? Thank you.
Comment 9 GitLab Migration User 2019-09-18 19:32:53 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/679.

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