Hi, I would say that Xvfb does _not_ connect to your display adapter - the v stands for virtual, ie it's not a real frame buffer as in a video card - it's a virtual one in your systems normal memory.
It's specifically for taking the place of a display adapter when your server doesn't have one. We always used to use this on sun E250s without a display adapter, but now we use headless as it's more reliable. Andy > -----Original Message----- > From: p niemandt [mailto:[EMAIL PROTECTED] > Sent: 20 March 2003 21:47 > To: Tomcat Users List > Subject: Re: Can't connect to X11 window server using '0:0' as the value > ofthe display and now java.awt.HeadlessException > > > Yep: Done correctly, this is probably the more 'correct' solution, but, > and I'm probably opening myself to a lot of flamebait, but I do suspect > that using something like Xvfb might give some advantages that using > headless won't. For example, and I'm just guessing, but I think that > 'headless' is purely a software solution, while Xvfb might be connected > to your display adaptor, and therefor might be faster or less of a drain > on your system resources. > > { > But, like I said, I have no documentation to back up this statement, > this is purely a guess and based on my personal findings: If anybody > else knows differently, I would be very interested to know more, as I'm > doing a lot more graphics orientated servlets, that usually run on > headless boxes } > > > > On Thu, 2003-03-20 at 20:36, Micael wrote: > > For me the easiest thing was just to provide the right command > line options > > (java.awt.headless=true) when I started up Tomcat. > > > > At 02:27 PM 3/20/03 -0500, you wrote: > > >At 07:18 PM 3/20/2003 +0000, you wrote: > > >>ok: there is another solution to the headless thing: (I wrote a > > >>graphical servlet that runs on a linux box without X, and had the same > > >>problems: The headless seemed to work, well, kinda, but not to my > > >>liking): So I went the xvfb route: This is a virtual frame > buffer to can > > >>install on a linux box that emulates an X session, which then kinda > > >>solves all the graphical problems in one step. You set the xvfb to the > > >>resolution required and just start and forget about it. > > >> > > >>Worth I shot, I'd say, and might safe you hours of frustration [It did > > >>me ;-) ]. > > > I had tried xvfb and had some difficulties. Any pointers? > suggestions? > > > > > >Thanks, > > >Glenn > > > > > > > > > > > >--------------------------------------------------------------------- > > >To unsubscribe, e-mail: [EMAIL PROTECTED] > > >For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > LEGAL NOTICE > > > > This electronic mail transmission and any accompanying > documents contain > > information belonging to the sender which may be confidential > and legally > > privileged. This information is intended only for the use of the > > individual or entity to whom this electronic mail transmission > was sent as > > indicated above. If you are not the intended recipient, any disclosure, > > copying, distribution, or action taken in reliance on the > contents of the > > information contained in this transmission is strictly > prohibited. If you > > have received this transmission in error, please delete the > message. Thank > > you > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > -- > p niemandt <[EMAIL PROTECTED]> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
