Bug 57758

Summary:	[snb] Amnesia flickering graphics
Product:	Mesa	Reporter:	Md Imam Hossain <imamdxl8805>
Component:	Drivers/DRI/i965	Assignee:	Eric Anholt <eric>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	high
Version:	9.0
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Md Imam Hossain 2012-12-01 07:43:46 UTC

http://www.moddb.com/games/amnesia-the-dark-descent/downloads/amnesia-tdd-linux-demo

The game of Amnesia: The Dark Descent has grahics flickering in game. Some 3D contants are flicking not all including areas covering lights. Other than that the game runs smooth and all the other effects working well.

the demo can be downloaded from the following site

http://www.moddb.com/games/amnesia-the-dark-descent/downloads/amnesia-tdd-linux-demo

Tested On:

Ubuntu 12.10
Linux 3.5 (both 32 and 64 bit)
X.Org X Server 1.13.0
xf86-video-intel 2.20.14
libdrm 2.4.40
Mesa 9.0 and 9.1

Hardware: Intel HD (device id 0106)

Comment 1 Md Imam Hossain 2012-12-01 07:57:08 UTC

the same flickering can be seen on Lightsmark benchmark

http://dee.cz/lightsmark/

Comment 2 Md Imam Hossain 2012-12-05 06:53:52 UTC

this is a major bug which affects many applications on Intel HD (0106), Steam user interface and Steam big picture also have similar flickering.

Comment 3 telcnas 2013-01-22 00:12:34 UTC

Same here
Screen flickers while running Amnesia The Dark Descent Demo and Steam.

Comment 4 telcnas 2013-01-22 00:17:21 UTC

Configuration
=============

Tested On:

Linux Mint 14 Cinnamon (Ubuntu 12.10)
64bit
X.Org X Server 1.13.0
libdrm 2.4.40
Mesa 9.0 and 9.1
Kernel v 3.5.0-17-generic
Hardware: Intel HD 3000

Comment 5 Eric Anholt 2013-03-14 08:29:23 UTC

This would be worth retesting with:

commit 09fbc298283b41cf3f25d75842a6d8ab4952dca1
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Sat Feb 2 12:46:49 2013 -0800

    i965: Fix the SF Vertex URB Read Length calculation for Sandybridge.

Comment 6 Md Imam Hossain 2013-03-14 09:25:11 UTC

I did the testing with my mom's laptop but now I am overseas I do not have access to any Sandybridge laptop

Comment 7 Md Imam Hossain 2013-04-01 02:39:48 UTC

anyone could retest it with the commit Eric mentioned so that it can be closed

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