[Openchrome-users] strange startup, and can't run 1920x1080, SP8000E w/DVI-02

[Luc Verhaegen]

On Mon, Jan 22, 2007 at 08:57:58AM -0500, gpeters at deepsky.com wrote:
> 
> On Mon, Jan 22, 2007 at 07:08:28AM +0100, Luc Verhaegen wrote:
> > On Sun, Jan 21, 2007 at 06:29:17PM -0500, gpeters at deepsky.com wrote:
> > > On Sun, Jan 21, 2007 at 05:34:08PM -0500, gpeters at deepsky.com wrote:
> > > > 
> > > > I am currently getting "green dots" on DVD playing.  I don't know why.
> > > > More on if a reduced blankig mode makes this go away.  I am not using
> > > > XvMC, I can't get XvMC working (I'll keep working at it).
> > > > 
> > > 
> > > Once again, I spoke too soon.  My monitor (an LVM-37W3) wouldn't take
> > > reduced blanking.  I adjusted the mode to move it up to 60fps, but I'm
> > > still getting the dreaded "green dots".  Overheating?
> > > 
> > > - Gavin
> > > 
> > Heh?
> > 
> > Reduced blanking is 60Hz.
> > 
> 
> I tried to use a reduced blanking mode generated by lvt, and my X server
> said "monitor does not support reduced blanking."  This surprised me,
> as even at the most verbose logging, I see no signs that the monitor
> EDID is being read.  Perhaps I can ovveride it.
> 
> By fiddling with the modeline, I just mean that I adjusted the dot-clock
> on my EDID-defined modeline s.t. the refresh rate is back up to 60Hz.  Here
> are the three Modelines, the EDID defined one, the one I'm using, and the 
> RB one that didn't work:
> 
> #        Modeline        "1920x1080"   148.50   1920 2004 2048 2200   1080 1084 1089 1125
> 
> # longer vertical front porch prevents "flashing" effect.
>         Modeline        "1920x1080"   149.82   1920 2004 2048 2200   1080 1084 1092 1135
> 
> #       Modeline "1920x1080_60.00_rb"  138.50  1920 1968 2000 2080  1080 1083 1088 1111  +HSync RVsync
> 
> > And the green dots are probably a bandwidth issue, and an issue in the 
> > unichrome.
> 
> The green dots also show up progressively more often as a movie plays.
> They also can show up on images.  They annoy me, but I can tolerate them.
> 
> - Gavin
> 
Ah, of course, back when i coded up cvt, people were worried that 
reduced blanking modes would ruin CRTs. Much to my annoyance.

You need to provide the rather daft:
Option "ReducedBlanking" "TRUE"
in your monitor section.

Luc Verhaegen.