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Test build: mono HDMI flicker at 720p (1.1.3-test2, R6)

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@freemchr freemchr released this 19 Oct 21:29
v1.1.3-test2
ed34996

Test build, not a release. MEGA65 R6 only.

This build tests a fix for the flickering monochrome picture on HDMI at 720p (50 and 60 Hz). 576p was not affected.

What changed: the scaler frame buffer in HyperRAM now uses 16 bits per pixel instead of 24. That halves the memory traffic, so the scaler no longer reads lines late. Triple buffering is also on (from 1.1.3-test1).

Install: flash MegaST-1.1.3-test2-R6.cor to a core slot. Keep your existing /atarist folder. stcfg and tos.img are unchanged from v1.1.2.

Please report:

  • Monochrome (71 Hz) at HDMI 720p 50 Hz and 720p 60 Hz: is the flicker gone?
  • Do the colour modes still look right? 16 bpp can show slightly coarser colour gradients.

For normal use, stay on v1.1.2.

Assets 3
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