On Mon, Aug 29, 2022 at 04:14:54PM +0200, Geert Uytterhoeven wrote: > Hi Maxime, > > On Mon, Aug 29, 2022 at 3:30 PM Maxime Ripard <maxime@xxxxxxxxxx> wrote: > > On Wed, Aug 24, 2022 at 06:42:18PM +0200, Mateusz Kwiatkowski wrote: > > > - Speaking of closed captioning... a lot of different stuff were put in the > > > blanking interval over the years. Like teletext in Europe. There are projects > > > like VBIT2 <https://github.com/peterkvt80/vbit2> which intentionally > > > reconfigure the Raspberry Pi composite output to include the blanking interval > > > in the framebuffer so that teletext can be output by drawing on the edge of > > > the "screen" (from the computer point of view). > > > > I'm not sure how we would support this in KMS to be honest. Asking for a > > wider mode and the userspace putting whatever it wants in the margins > > seems like a good choice. > > s/wider/higher/ > > Teletext is transmitted in the "visible" parts of (horizontal) lines, but during > the vertical blank. Yeah, sorry I meant wider as in larger than the active area, without any direction in mind. Thanks for the correction :) Maxime
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