This probably won't be of much help, but... I've seen behavior like this before where the described problem occurs when the monitor is switching "modes" (from one resolution, refresh rate, and/or color depth to another). I can't say for sure, but I THINK I've only seen this on CRT's (not LCD's) - but I can't swear to that fact.
So... I don't know what that really means - if it even applies to your situation at all - but perhaps it will serve as a cluestick to someone else around here that knows more about the electronics/electrical engineering behind monitors and/or video cards. The capacitor issues (in monitor and/or video card) mentioned earlier sounded promising to me (with my limited knowledge of such things). Best of luck. On Mon, May 23, 2011 at 5:29 PM, John Jason Jordan <joh...@comcast.net>wrote: > My desktop computer (Lucid, x86_64, up to date) uses the nVidia 6150 on > the motherboard. The monitor is a Samsung SyncMaster 206BW LCD display, > roughly three years old, maybe four. I am using the proprietary nVidia > driver. > > The monitor has always worked fine, but a couple of days ago upon > restoring from the screensaver in the morning the monitor flashed on > and off for 10-20 times before finally displaying the screen. The day > before it worked fine. Every time I try to restore from the screensaver > now I get the same flashing. The flashing is not completely regular; > the screen flashes the display for a quarter of a second every two to > four seconds. > > Today I needed to reboot the computer for the first time since this > started. When the login screen tried to display I got the same > flashing. In other words, restarting the computer did not change > anything. > > I don't have any other monitors to substitute for testing purposes. > > Any troubleshooting suggestions or other observations welcome. > _______________________________________________ > PLUG mailing list > PLUG@lists.pdxlinux.org > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
