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   Marco Moock  wrote:   
   > Am 11.01.2024 um 14:07:29 Uhr schrieb Marco Moock:   
   >   
   > > Am 11.01.2024 um 09:31:26 Uhr schrieb Theo:   
   > >   
   > > > That suggests the problem is that the monitor claims it can do   
   > > > such-and-such resolution, and then isn't happy when the Pi does it.   
   > > > Do you have a menu button on the monitor you can press and does it   
   > > > tell you the resolution, or does it say 'no signal' or 'out of   
   > > > range' or something?   
   > >   
   > > I have now testet another monitor, in Debian all is fine.   
   > > With Fedora, the problem still exists.   
   > >   
   > > The monitor shows "no signal".   
   >   
   > Can that issue come from the DVI to HDMI cable?   
   >   
   > I don't have any HDMI compatible monitor at all, I only have some that   
   > have VGA/DVI and I have a simple adapter cable.   
   > Maybe the output after the boot isn't acceptable for the DVI monitor?   
      
   Single link DVI only goes up to 1080p.  Maybe the monitor is declaring   
   itself to support some higher resolution, and then balking when the Pi sends   
   it?  Or maybe the Pi is sending HDMI instead of DVI and the monitor can't   
   handle that?  The Pi can't do dual-link DVI but maybe the monitor is telling   
   it to do a dual-link-only resolution?   
      
   There are some settings in config.txt and cmdline.txt that would be worth   
   playing with:   
   https://www.raspberrypi.com/documentation/computers/config_txt.h   
   ml#video-options   
   https://www.raspberrypi.com/documentation/computers/configuratio   
   .html#hdmi-configuration   
      
   Theo   
      
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