Hello, i have a linux pc with 2 monitor, primary lcd directly connected to discrete amd radeon rx 570 and secondary CRT connected trought intel vga d-sub embedded on main board, (primary gpu pcie selected and IGPU multimonitor active on bios setup).
I use xrandr to manage crt and lrmc to generate lowres modelines; i get without problems res like 720x288 or 640x200 but lrmc can’t give me resolution with low value of orizzontal pixel, e.g. if i ask him 320x288 he give me 720x288.
I investigate and i found that there is a special option “-l” that enable low pixel clock; I think it’s disabled by default because some video cards don’t handle it, that’s right? in fact my graphics card doesn’t work with these horizontal resolutions.
How i can have a pixel perfect, (not just with retroarch but with other emulators like fs-uae as well)? My idea is to take a monitor that support 480p or more and use scale integer on all emulators…