Bug 75911

Summary: Ravensword: Shadowlands graphics lag (GM45)
Product: Mesa Reporter: Md Imam Hossain <imamdxl8805>
Component: Drivers/DRI/i965Assignee: Ian Romanick <idr>
Status: RESOLVED NOTABUG QA Contact: Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity: normal    
Priority: medium    
Version: git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 77449    

Description Md Imam Hossain 2014-03-08 13:13:08 UTC
http://store.steampowered.com/app/253410/

Ravensword: Shadowlands Unity 3D engine game have serious lagging in Eastern Forest after entering East Gate. I think there is a software fallback or something alike occuring in that particular level. I have traced with apitrace, the last part of trace file contains the problematic area.

System:

Ubuntu 13.10
linux 3.12.0-031200-generic
Mesa 10.2.0-devel (master branch)
xf86-video-intel 2.99.905
Intel GMA 4500MHD (device id: 2a42
Comment 1 Md Imam Hossain 2014-03-09 11:28:14 UTC
link for trace file:

http://www.mediafire.com/download/u5bk80ukzd9vrwf/rs2.x86.7z
Comment 2 Denis 2018-03-27 09:09:14 UTC
Hi. I am able to reproduce the issue on my PC (see lags on apitrace + flickering screen in the end)

OpenGL version string: 3.0 Mesa 18.1.0-devel (git-1e36fe5dc4)
Dual core Intel Core i7-7500U 	
IntelĀ® HD Graphics 620 	Kaby Lake
Ubuntu 16.04
Kernel: 4.13.0-37-generic x86_64 (64 bit)

But looks like the game was excluded from steam and not actual anymore.
Comment 3 Timothy Arceri 2019-07-04 01:15:05 UTC
There is some flicker at the very end when the user goes to the menu to exit the game but that could be due to a bad trace. The performance in the forest is fine on my Skylake with recent Mesa.

apitrace suggest the game could do a number of things to improve performance, but its likely the real issue here is that GM45 just isn't very powerful.

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