While it is likely a driver problem, it may be possible to avoid the issue in subsequent uses of Chimera by turning off the multisampling option. In "Effects" (under Tools... Viewing Controls) set "multisampling" to false and click Save. http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/sideview.html#effects Then later uses of Chimera might not give the error. There is also a Chimera startup option --nomultisample but on Windows it is more work to use startup options... http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/startup.html http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/options.html#multisample Best, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html
On Sun, 31 Aug 2008, hsosa@aecom.yu.edu wrote:
I just installed the latest production release version of chimera on laptop running Vista and got the following message when starting chimera:
Unable to run multisampling. Graphics hardware support request, but cannot switch while maintaining display data
I can run the program after clicking the OK button in the above message but then I cannot exit chimera.
Any idea of what is going on ?
When you get a mysterious bug with chimera, we really wish that you would submit the bug with chimera's Report a Bug dialog (in the help menu). The bug report tells us more about the configuration of your computer and then we can tailor the response appropriately. So what follows is a generic answer.
Your bug appears to be an immature graphics driver. The best solution would be to upgrade your graphics driver. And ideally you would get a newer graphics driver from the laptop vendor's website, because they often customize the drivers for their hardware, but the laptop vendor's rarely update the drivers (unlike NVidia and ATI/AMD which update their desktop drivers every month), so you may need to get a newer one from the graphics manufacturer. In particular, if you have Intel graphics, get a newer driver from <http://downloadcenter.intel.com/>.
Greg Couch UCSF Computer Graphics Lab