On Sun, Jan 24, 2021 at 8:13 PM Ralph Ronnquist via Dng <[email protected]> wrote: > > On 24/01 19:59, o1bigtenor via Dng wrote: > > Greetings > > > > (Asking this here as so far I've seen some seriously skilled folks > > connecting in!) > > > > I've been working on getting a HiSense 50" TV (3840x2160_30) working > > on a Nvidia GTX1050 Ti graphics card. I have a second graphics card > > (Nvidia GT (IIRC) 570) with a present stable of 4 -1920x1080 monitors. > > I am running Nouveau rather than proprietary Nvidia software and get > > to use xrandr to set up my graphics system after every boot but > > although it took me a while to learn how to do this setup its pretty > > quick now. > > > > Part of the 'fun' in wanting to add the 3840x2160_30 monitor is that > > EDID has become a more than somewhat 'challenging' system. Enough so > > that I was able to find this: > > https://www.kernel.org/doc/html/v5.6/driver-api/edid.html > > > > Creating this 'custom' EDID is a long ways from my wheelhouse - - - I > > have spend some time today trying to find some of the stuff indicated > > on that page - - - - can't find anything (maybe also a good thing!). I > > am going to attach (hopefully the list accepts attachments) 2 files > > which give enough information so that someone with the requisite > > skills could create this 'custom' EDID that I need so that I could > > then use xrandr to get this monitor working. Is there someone who > > might be able to do this? (I think doing it might be a lot less time > > consuming that guiding me through the doing of it - - - especially as > > I have essentially zero programming skills) > > I think that > > 1) the program "cvt" is useful for getting the details right > ---- > $ cvt 3840 2160 30 > # 3840x2160 29.98 Hz (CVT) hsync: 65.96 kHz; pclk: 338.75 MHz > Modeline "3840x2160_30.00" 338.75 3840 4080 4488 5136 2160 2163 2168 2200 > -hsync +vsync > ----
tried this - - - - sorry it needs to be a little bit different! > > 2) you can use that almost verbatim to assign this with xrandr, rather > than rebuilding the module: > > $ xrandr --newmode "3840x2160_30.00" 338.75 3840 4080 4488 5136 2160 2163 > 2168 2200 -hsync +vsync > If you look in the attached files the frequency can't be 338.75 - - - it to be 297 MHz. The mode file is just a little bit different than the one that cvt proposes. (Sunno why and there are some other goofy things going on but if I can get it working - - - - I can live with the rest!) Thanks for the ideas ! _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
