On Thu, 17 Oct 2002, Anthony N Martin wrote: > I've been having problems getting a monitor to work > in Xwindows on my new linux installation. > Other monitors (NEC Viewsonic) work with XF86 > on the machine. > The monitor (V50) works on other (MS-Windows) > machines. > The monitor won't sync, gives up & blanks. Sometimes > a picture flashes up briefly. It works OK in the linux > text console, and also in basic VGA with win-3.1 > I've selected and tweaked modelines to get scan rates > & sync widths identical to those that work with the monitor > when driven from other sources, and those given as > "memory" settings in the monitor handbook. > I've concluded that the card when driven from XF86 > is producing composite-sync on h-sync which is causing > the problem. As win-3.1 can produce proper syncs, > it's not hardwired, it's the way XF86 has configured the > card. > This is not what I would expect as a default, is this a bug? > Default modelines do not produce VESA VGA compliant > output as a result, and some very common monitors > won't sync. This is a serious bug. > Is there a config option I can use to change this? Or is > fixable by a patch? I'm still RTFM for composite > syncs and not finding anything. > Card: ATI Mach64 GX > Monitor: Compaq V50 > XFree86 version 4.2.0 > Slackware 8.1 on x86 This is a known glitch in 4.2. Specify Option "NoCompositeSync", or upgrade to 4.2.1. Marc. +----------------------------------+-----------------------------------+ | Marc Aurele La France | work: 1-780-492-9310 | | Computing and Network Services | fax: 1-780-492-1729 | | 352 General Services Building | email: tsi@ualberta.ca | | University of Alberta +-----------------------------------+ | Edmonton, Alberta | | | T6G 2H1 | Standard disclaimers apply | | CANADA | | +----------------------------------+-----------------------------------+ XFree86 Core Team member. ATI driver and X server internals. _______________________________________________ Newbie@XFree86.Org *** To unsubscribe , or change message options, see: http://XFree86.Org/mailman/listinfo/newbie
