Many many pages ago in this prohibitively long thread, GohanX mentioned getting scanlines in 720p that didn't look quite right (there are a few posts afterwards discussing it):
GohanX wrote:Hey guys, I'm having a slight issue and I've been messing with the settings and can't figure out a solution.
When I have a solid color screen (all white, or sky blue background, or something) and I have scanlines enabled it looks like there are faint bands in the lines, kind of like jailbars but horizontal. I don't notice them if there is something on the screen, just when it's all (or mostly) a solid color. I've tried it with the Genesis and a few different Neo Geos in RGB and also the Wii U in HDMI.
I usually play it in "Picture" mode in 720p with scanlines, as my sources are either old stuff in 240p RGB or the Wii U in 480p for VC games. I have the latest firmware, although the issue was present in the 1.8 firmware. I have tried adjusting everything I could think of and the only thing that changes it at all is the V WIDTH setting (32) but changing it does other weird things with the scanlines. The image still looks great, and it's barely noticeable, but maybe someone has an idea to make it just a little bit better.
http://shmups.system11.org/viewtopic.ph ... start=4620
I'm getting similar misbehavior that I'll call "uneven scanlines". Specifically, on a section of the screen with a solid color, I can see that alternating scanlines have slightly different height. Basically, the first one will have a certain height h1, the next one will have a slightly smaller height h2, then the next one will be h1, then h2, then h1, and so on down the screen. However, when there are lots of different colors and objects, it's not noticeable at all (I'm sure it's still occurring, but it's hard to notice). I care because I've been playing a lot of Famicom and Mega Drive games lately that frequently use solid colors in their backgrounds, so it's very noticeable and very distracting.
I've tried two different 1080p screens, one a plasma and one an LCD, and both of them exhibit this same behavior. And to clarify, I am using 720p output and the suggested 240p settings over at the junkerhq Wiki page. Is this caused by the monitor, as replies to GohanX implied, or has anyone found a way to fix it in the Framemeister settings?