I've had good success using various Extron adapters. I'm currently using a RGB112xi to convert <anything analog> => VGA.
So far the adapter works as advertised with anything I managed to connect it to (various HP/DEC/Sun/SGI/RS6000, including mono and SoG) to a cheap Dell monitor that definitely doesn't understand sync on green. The adapter fully regenerates all signals including separate H/V sync. >From there I would assume any cheap VGA => HDMI adapter should work (but I never had the urge, because HDMI monitors also tend to be wide format which doesn't work very well for classic computing) I also have other Extron converters, but the RGB112xi is best for 1990s workstations. The only thing I wish it had was a way to choose the color when the input signal is monochrome. On Sun, May 24, 2020 at 9:53 AM Alan Perry via cctalk <cctalk@classiccmp.org> wrote: > > When I first started trying to use VGA LCD panels with my Suns (mostly > lunchbox systems, all 4c and 4m desktops), I heard there could be a > problem like that and stuck with a particular model Samsung that worked. > Then I tried another one and it worked. And another. And another. I > haven't encountered one (out of half a dozen) that didn't work. > > alanp > > On 5/24/20 9:29 AM, alan--- via cctalk wrote: > > > > I've had the opposite experience. I've been trying to find a 1U > > pull-out keyboard/monitor/mouse combo for my E6500 rack. Most of the > > VGA LCD panels complain about signal out of range on both cg3 and cg6. > > The E6500 really doesn't need a video console, but it'd be nice if one > > was tucked in there. Of course the weirdo Sun mounting rails in the > > cabinet are yet another challenge. > > > > -A > > > > On 2020-05-24 11:16, Alan Perry via cctalk wrote: > > > >> Every flat panel display with a SVGA connector that I have had has > >> worked with my 13W3-to-SVGA adapters. I have seen adapters that do the > >> SVGA to HDMI part. I am asking if someone else here has figured out > >> which one(s) work in this application. >