[Openchrome-devel] [Bug 106392] blank screen on OpenChrome with VIA VE900

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106392

--- Comment #7 from Kevin Brace <kevinbrace at gmx.com> ---
ptouchman, the flash thing is likely due to analog VGA sensing for connector
detection.
Post the Xorg.0.log again to see if EDID is being transmitted properly to VX900
chipset.


(In reply to ptouchman from comment #6)
> Ok I don't think it's the DDC, because I tried an old Dell Ultrascan P991
> CRT monitor and got the same blank results.
> 
> One thing I did notice with the old CRT was a brief flash of color which
> looked like what should be displaying but super skewed.  It must be
> displaying at a frequency that the monitor can't handle and it put up a
> message saying "out of range" just like my LCD monitor did.
> 
> 
> I thought I'd try to use the via_reg_tool to see what it said:
> 
> "sudo ./via_reg_tool -m"  while  the console text is active said:
> 
> via-chrome-tool (C) 2009 by VIA Technologies, Inc.
> This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY
> 
> SL in System memory: 0x10000000, RTSF in SL: 0x0
> Primary Display:
>     H total=800, active=640, blank (640-544), sync(656-240)
>     V total=525, active=480, blank (480-13), sync(489-11)
> base_addr=0x00003250, bpp=8
> 
> Secondary Display:
>     H total=246, active=246, blank (1534-7928), sync(4085-509)
>     V total=1534, active=1982, blank (2038-2038), sync(2045-23)
> base_addr=0x00000000, bpp=8
> 
> Panel Scaling enabled, mode Interpolation
> Scaling Factors: horizontal=0, vertical=1707
> 
> LVDS Seq Mode: LVDS1 + LVDS2
> LVDS CRT Mode: LVDS1 + LVDS2
> LVDS Channel 1 Format OpenLDI, Power Down
> LVDS Channel 2 Format OpenLDI, Power Down
> 
> 
> 
> and if I wanted to see what the graphics mode would be I tried:
> 
> "sleep 5; sudo ./via_reg_tool -m"  and then hit CTRL+ALT+F7 to get into the
> graphics mode:
> 
> via-chrome-tool (C) 2009 by VIA Technologies, Inc.
> This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY
> 
> SL in System memory: 0x10000000, RTSF in SL: 0x0
> Primary Display:
>     H total=1376, active=1024, blank (1032-96), sync(1072-136)
>     V total=808, active=768, blank (769-40), sync(769-3)
> base_addr=0x04000000, bpp=32
> 
> Secondary Display:
>     H total=246, active=246, blank (1534-7928), sync(4085-509)
>     V total=1534, active=1982, blank (2038-2038), sync(2045-23)
> base_addr=0x00000000, bpp=8
> 
> Panel Scaling enabled, mode Interpolation
> Scaling Factors: horizontal=0, vertical=1707
> 
> LVDS Seq Mode: LVDS1 + LVDS2
> LVDS CRT Mode: LVDS1 + LVDS2
> LVDS Channel 1 Format OpenLDI, Power Down
> LVDS Channel 2 Format OpenLDI, Power Down
> 
> 
> I also tried the -p option while I was in console mode (I forgot to try it
> in graphics mode with a sleep command).
> 
> 
> via-chrome-tool (C) 2009 by VIA Technologies, Inc.
> This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY
> 
> VCK PLL: dm=653, dtx=2, dr=2, dn=2 VCK Fvco=2344572 kHz, Fout=586143 kHz
> ECK PLL: dm=596, dtx=2, dr=0, dn=1 ECK Fvco=2854054 kHz, Fout=0 kHz
> LDCK PLL: dm=596, dtx=2, dr=2, dn=1 LDCK Fvco=2854054 kHz, Fout=713513 kHz

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