id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
9641	VR glitches on Nvidia 4070 Ti graphics	phil.cruz@…	Tom Goddard	"Phil Cruz reports that the BCBB BioViz lab has several new computers with Nvidia 4070 Ti graphics that exhibit glitches in ChimeraX VR.

Begin forwarded message:

From: ""Cruz, Phil (NIH/NIAID) [C]"" 
Subject: Re: [EXTERNAL] ChimeraX VR and Quest Air Link
Date: August 11, 2023 at 2:52:34 PM PDT
To: Tom Goddard, ""McCarthy, Meghan (NIH/NIAID) [C]"" 

Hi Tom,
 
Thanks for the tip! We have totally switched over to using link cables for now, but this will be useful when we go back to working with Air Link again after our event next week.
 
We have encountered another issue, however, but only with our newest set of five computers with 4070 video cards. When running ChimeraX VR there is a “flicker”. The best way to describe it is that it looks like the outline of a city skyline flickering across the model (and/or controllers) every couple of seconds. Like the visual manifestation of some sort of step function. Swapping in a 3000 series card from one of the computers we got late last year fixes the problem, so it is likely some setting that makes the 4070 cards incompatible with ChimeraX VR. We have spent a lot of time troubleshooting, and were wondering if you have some time on Monday to discuss troubleshooting ideas with Victor.
 
Regarding the self-driving cars, that sounds totally creepy. Be afraid, very afraid?
 
Thanks,
 
Phil"	defect	closed	high		VR		fixed		meghan.mccarthy@… victor.starrkramer@… scooter@…				all	ChimeraX