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system_tools:rtg [2020/09/27 09:36]
muaddib [3) Test desired screen modes]
system_tools:rtg [2021/01/01 10:22] (current)
renaudschweingruber_txg59n64 [Overview]
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 ===== Overview ===== ===== Overview =====
  
-''Jason Mac Mullan'' kindly develops and maintains the ''SAGA RTG driver'' to be used with the ''Digital Video Out'' of the ''Vampire'' boards. The driver is still in a beta stage.+Apollo Team develops and maintains the ''SAGA RTG driver'' to be used with the ''Digital Video Out'' of the ''Vampire'' boards  with Picasso96 installed on AmigaOS3For AROS, there is no need for that driver.
  
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   * You should use resolutions and refresh rates that work best with your monitor or TV.  If you find a screen mode that does not work, then you can set it to ''inactive'' in the ''SYS:Prefs/Picasso96Mode'' tool, so that it does not get accidentally selected.   * You should use resolutions and refresh rates that work best with your monitor or TV.  If you find a screen mode that does not work, then you can set it to ''inactive'' in the ''SYS:Prefs/Picasso96Mode'' tool, so that it does not get accidentally selected.
     * Some monitors and TVs have trouble displaying resolutions that are lower than 640×480, which is the minimum allowed value for Digital Video.     * Some monitors and TVs have trouble displaying resolutions that are lower than 640×480, which is the minimum allowed value for Digital Video.
-      * If the horizontal resolution is less than or equal to 500, then the RTG driver will pixel-double the resolution horizontally. If the vertical resolution is less than or equal to 300, then the RTG driver will pixel-double the resolution vertically. This will help most low RTG resolutions to reach the minimum allowed Digital Video resolution (640×480), with the notable exception of 320×200, which will only reach 640×400.+    * If the horizontal resolution is less than or equal to 500, then the RTG driver will pixel-double the resolution horizontally. If the vertical resolution is less than or equal to 300, then the RTG driver will pixel-double the resolution vertically. This will help most low RTG resolutions to reach the minimum allowed Digital Video resolution (640×480), with the notable exception of 320×200, which will only reach 640×400.
   * We recommend using 1280x720 or 960x540 for the best AmigaOS experience.   * We recommend using 1280x720 or 960x540 for the best AmigaOS experience.
   * If you have a Vampire Standalone, make sure you test 720x576@50Hz and 720x480@60Hz, to ensure that your monitor or TV works well with them. The Vampire Standalone outputs non-RTG screen modes to Digital Video in these two resolutions. (The former in PAL mode and the latter in NTSC mode.)   * If you have a Vampire Standalone, make sure you test 720x576@50Hz and 720x480@60Hz, to ensure that your monitor or TV works well with them. The Vampire Standalone outputs non-RTG screen modes to Digital Video in these two resolutions. (The former in PAL mode and the latter in NTSC mode.)
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       * The clock rate must be at most 65MHz, which is the maximum allowed value on Vampire boards.       * The clock rate must be at most 65MHz, which is the maximum allowed value on Vampire boards.
       * The resolution should be at least 640x480, which is the minimum allowed value for Digital Video.       * The resolution should be at least 640x480, which is the minimum allowed value for Digital Video.
-        * If the horizontal resolution is less than or equal to 500, then the RTG driver will pixel-double the resolution horizontally.  If the vertical resolution is less than or equal to 300, then the RTG driver will pixel-double the resolution vertically.  This will help most low RTG resolutions to reach the minimum allowed Digital Video resolution (640x480), with the notable exception of 320x200, which will only reach 640x400. +        * Many monitors and TVs are flexible and support resolutions that are even lower than this minimum value. 
-        * Many monitors and TVs are flexible and support resolutions (such as 640x400) that are even lower than the minimum allowed Digital Video resolution (640x480).+        * See "Test desired screen modes" above to understand how pixel-doubling helps low resolutions reach this minimum value.
       * The resolution, the horizontal frequency and the vertical frequency (refresh rate) should be within the specifications of your monitor or TV.       * The resolution, the horizontal frequency and the vertical frequency (refresh rate) should be within the specifications of your monitor or TV.
         * Usually, the monitor or TV supports a specific subset of standard refresh rates, like 24/25/30/50/60Hz.         * Usually, the monitor or TV supports a specific subset of standard refresh rates, like 24/25/30/50/60Hz.
Last modified: le 2020/09/27 09:36