Bug 66921

Summary:	[r300g] Heroes of Newerth: HiZ related corruption
Product:	Mesa	Reporter:	Pavel Ondračka <pavel.ondracka>
Component:	Drivers/Gallium/r300	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	Keywords:	regression
Version:	git
Hardware:	Other
OS:	All
URL:	http://www.heroesofnewerth.com/download/
Whiteboard:
i915 platform:		i915 features:
Attachments:	screenshot

Description Pavel Ondračka 2013-07-15 12:42:30 UTC

Created attachment 82440 [details]
screenshot

In Heroes of Newerth, there is massive black corruption over top half of screen anytime, when you move mouse over some game objects, like buildings. This is HiZ related and goes away when RADEON_DEBUG=nohiz is set. 
I also found out that it goes away completely when I revert
commit 631c631cbf5b7e84e42a7cfffa1c206d63143370
Author: Marek Olšák <maraeo@gmail.com>
Date:   Fri May 13 02:26:08 2011 +0200

    r300g: allow HiZ with a 16-bit zbuffer

HoN is free to play, however I can make an apitrace if needed.

GPU:RV530 (R520 also affected)
Mesa: b616d0166158872a135153e27c391424fe655117
Kernel: 3.9.4-200.fc18.i686
libdrm: f8f1f6e37ae2c3eb4a9c045ba3294b3ccf926c07

Comment 1 Marek Olšák 2013-07-15 21:55:53 UTC

Okay, I have reverted the commit.

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