On Fri, 23 Jan 2009 07:29:25 -0700, John wrote in message <4979d445.3070...@av8n.com>:
> 82:: Choppy video and sound. I observe that things work fine when > the FlightGear window is the default size, 800x600. The frame rate is > in the range 45 to 50. However, if I enlarge the window even > slightly, e.g. 1000x750, things go to pot. The reported frame rate > (as given by the orange number in the lower-right corner) drops to > around 30, which wouldn’t be so bad except that the actual frame rate > drops to around 5. That is to say, the video becomes horribly choppy. > The sound also becomes horribly choppy, to the point where the ATIS > and IDENT features are unusable. > > No error messages, no warnings, just choppy video and sound. > > I observe that things work much better using the command-line option > –prop:/sim/frame-rate-throttle-hz=30. > > This is observed using an ATI RV350 [Mobility Radeon 9600] and the > proprietary fglrx driver. (The last time I checked, the xorg radeon > driver was not an option, since it lacked some required > capabilities.) ..tried http://www.phoronix.com/forums/showthread.php?t=10181 ? ..my understanding is AMD/ATI's proprietary fglrx driver is dropping support of old cards to make people buy new cards. Novell's and AMD/ATI's radeonhd "xorg" driver has similar problems, not supporting old cards at all, and is even straggling behind X.org's radeon on AMD/ATI's new cards: http://www.x.org/wiki/RadeonFeature http://www.x.org/wiki/RadeonProgram http://www.phoronix.com/scan.php?page=news_item&px=NjgwMA ..further background: http://www.phoronix.com/scan.php?page=article&item=radeon_vs_radeonhd&num=1 -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
