On Fri, Nov 4, 2022 at 12:56 PM Lukas Satin <luke.satin@xxxxxxxxx> wrote: > > Hello, sorry fo the typos. Wanted to catch you before the weekend, to get some hints for upcoming work. > > I'm back at PC. > > Does your driver support switching to 240p in NTSC and 288p in PAL on the go via xrandr, for example? > > If not, can I find some relevant part of code in your repository where to implement that? https://cgit.freedesktop.org/drm/drm/tree/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c + tvmodesnv17.c There's definitely a lot of hard-coding going on. A lot of the pre-nv50 display code is from This code is (likely) originally from https://cgit.freedesktop.org/xorg/driver/xf86-video-nv/tree/src but I can't immediately find the TV code in there. But perhaps it's there anyways, I only spent about 30s looking for it. I don't remember by now, but there _might_ be a kms property (which should get piped through to xrandr properties) which allows you to change this live? > Some info I found regarding 240p and that it is a part of NTSC: https://en.wikipedia.org/wiki/Low-definition_television > > TV with S-Video mostly supports 480i and 240p as well. So the current issue is outputting that via TV out. > > My current configuration looks like this: > TV-1 connected 240x224+0+0 (normal left inverted right x axis y axis) 0mm x 0mm > 720x480 59.94 + > 1024x768 59.94 > 800x600 59.94 > 720x576 59.94 > 640x480 59.94 > 400x300 59.94 > 320x240 59.93 > 320x200 59.94 > 768x576 50.00 > 360x200 60.00 > 360x240 60.00 > 640x240 60.00 > SR-1_240x224@60.10 60.10* > > I see I have created 240x224 (I need to fix that), but even 320x240 does not work. It always stays at 480i. Did you try 360x240? I have no idea though, sorry. I was just happy when the S-Video worked at all. It could require further modifications to how we configure those registers.
