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Old 22 February 2014, 19:47   #1
mark_k
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Join Date: Aug 2004
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Posts: 2,480
Debian AGA console display issues

Quick time test booting Debian HDF; WinUAE 2.7.0 223 secs vs 2.7.1b8 179 secs. Not bad, about 20% faster.

There are a couple of problems with the Debian AGA display (both console and X):

- Since WinUAE 2.4.0 the rightmost ~24 pixels are blanked, maybe fewer in later versions (~20???). With WinUAE 2.3.3 only about 3-4 pixels are blanked. See screenshot, rightmost pixels of letter d and all of e and f are blanked. I mentioned this before, but thought I'd re-test with the latest 2.7.1 beta (no change).

- During the boot sequence (using the Debian HDF I mentioned here, type boot-hda1 at the prompt with A4000 config) the screen blanks and reappears several times. I assume that's normal, it happens with ECS too. However with AGA when the screen reappears it's squashed/distorted, see pic. Happens with 2.3.3, 2.4.0, 2.6.0 and later (2.5.x just gives an always-blank screen). With 2.3.3 and 2.4.0 the distorted display looks a bit different. Log output near that time:
Code:
BEAMCON0=5BB3 VTOTAL=01C0  HTOTAL=0071
  HSSTOP=001A HBSTRT=0001  HBSTOP=0023
  VSSTOP=0004 VBSTRT=01C0  VBSTOP=0027
  HSSTRT=000C VSSTRT=0001 HCENTER=0045
  HSYNCSTART=00E3 HSYNCEND=0041
BEAMCON0=5BB3 VTOTAL=01C0  HTOTAL=0071
  HSSTOP=001A HBSTRT=0001  HBSTOP=0023
  VSSTOP=0004 VBSTRT=01C0  VBSTOP=0030
  HSSTRT=000C VSSTRT=0001 HCENTER=0045
  HSYNCSTART=00E3 HSYNCEND=0041
BEAMCON0=5BB3 VTOTAL=01C0  HTOTAL=0071
  HSSTOP=001A HBSTRT=0001  HBSTOP=0023
  VSSTOP=0004 VBSTRT=01C0  VBSTOP=0030
  HSSTRT=000C VSSTRT=000C HCENTER=0045
  HSYNCSTART=00E3 HSYNCEND=0041
BEAMCON0=5BB3 VTOTAL=01C0  HTOTAL=0071
  HSSTOP=001A HBSTRT=0001  HBSTOP=0023
  VSSTOP=000E VBSTRT=01C0  VBSTOP=0030
  HSSTRT=000C VSSTRT=000C HCENTER=0045
  HSYNCSTART=00E3 HSYNCEND=0041
warning: 5BB6 written to BEAMCON0 PC=000EF14A
If I open the settings window and change the line mode or interlaced line mode settings, the display corrects itself.
Attached Thumbnails
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Name:	Right_side_clipped_pngout.png
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Name:	Distorted_display.png
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Name:	After_line_mode_change.png
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ID:	39140  
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