[ltp] Re: X60 produces fuzzy VGA output in high resolutions - will Ultrabase help?

[Bjørn Mork]

"Shot (Piotr Szotkowski)" <shot@hot.pl> writes:

> Hmm, that’s very interesting! I gave up after reading somewhere o=
n the
> Internet (ThinkWiki? I can’t find this info now…) that Di=
splayPort is
> not yet supported in the intel driver. 

That might have been just the audio?

> But xrandr does seem to see the HDMI-1 output:
>
> shot@devielle:~$ xrandr
> Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1680
> VGA connected 1680x1050+0+0 (normal left inverted right x axis y axis) 43=
4mm x 271mm
>    1680x1050      60.0*+
>    1280x1024      75.0     60.0  
>    1280x960       75.0     60.0  
>    1152x864       75.0  
>    1024x768       85.0     75.0     70.1     60.0  
>    832x624        74.6  
>    800x600        85.1     72.2     75.0     60.3     56.2  
>    640x480        85.0     75.0     72.8     66.7     59.9  
>    720x400        70.1  
> LVDS connected (normal left inverted right x axis y axis)
>    1440x900       60.0 +   59.9     50.0  
>    1360x768       59.8  
>    1152x864      100.0     85.1     85.0     75.0     75.0     70.0     6=
0.0  
>    1024x768       85.0     75.0     70.1     60.0  
>    832x624        74.6  
>    800x600        85.1     72.2     75.0     60.3     56.2  
>    640x480        85.0     72.8     75.0     59.9  
>    720x400        85.0  
>    640x400        85.1  
>    640x350        85.1  
> HDMI-1 disconnected (normal left inverted right x axis y axis)
> shot@devielle:~$ 

This is mine with the TV connected:

bjorn@nemi:~$ xrandr 
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 4096 x 4096
VGA disconnected (normal left inverted right x axis y axis)
LVDS connected 1440x900+0+0 (normal left inverted right x axis y axis) 287mm x 180mm
   1440x900       60.0*+   59.9     50.0  
   1360x768       59.8  
   1152x864      100.0     85.1     85.0     75.0     75.0     70.0     60.0  
   1024x768       85.0     75.0     70.1     60.0  
   832x624        74.6  
   800x600        85.1     72.2     75.0     60.3     56.2  
   640x480        85.0     72.8     75.0     59.9  
   720x400        85.0  
   640x400        85.1  
   640x350        85.1  
HDMI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
   1920x1080      60.0*+
   1280x720       60.0  
   640x480        59.9  
bjorn@nemi:~$ 


> Still, no matter what I do (I’m using a Delock DisplayPort â†=
’ DVI
> adapter¹) neither xrandr nor the monitor can see the other party
> (neither with the stock Ubuntu xorg.conf nor with yours – but tha=
nks
> for sharing!).
>
> ¹ http://delock.com/produkte/gruppen/Konverter/Delock_Adapter_Displa=
yport_to_DVI-I_29pin_20cm_65093.html

And nothing in the xorg log either?

> Do you think this can be a case of a faulty adapter or the monitorâ€=
™s DVI
> cable (unfortunately, I can’t plug the adapter directly to the mo=
nitor,
> nor test it anywhere else…)?

Yes, finding another device with a DisplayPort may be difficult.  But
did you try another monitor, just to rule out problems with the monitor
and/or DVI cable?

> Note: Your system has X.org 1.6.2 with intel 2.8.0, while mine has
> X.org 1.6.0 with intel 2.6.3. I’ll try with a current Karmic live=
 CD,
> as Karmic seems to have X.org and intel versions matching unstableâ€=
™s.

I bought the DP adapter in March and it worked from the start.  I just
looked through my backups and found that it did work with this
xorg/driver combo too:

X.Org X Server 1.5.99.901 (1.6.0 RC 1)
Release Date: (unreleased)
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.17.7 x86_64 Debian
Current Operating System: Linux nemi 2.6.29-1-amd64 #1 SMP Tue Mar 24 22:24:50 UTC 2009 x86_64
Build Date: 27 January 2009  08:02:28AM
xorg-server 2:1.5.99.901-2 (buildd@xenophanes) 
 
(II) Module intel: vendor="X.Org Foundation"
        compiled for 1.5.99.901, module version = 2.6.1
        Module class: X.Org Video Driver
        ABI class: X.Org Video Driver, version 5.0


So I don't think the problem can be the versions you are using.  Unless
there are specific bugs hitting you, of course.  That possibility will
always make an upgrade worth testing.


Just for the record if anyone is interested:  The adapter I'm using is
similar to this one (eBay item #250382295399):

 http://cgi.ebay.com/Display-Port-Male-To-HDMI-Female-Adapter-Converter_W0Q=
QitemZ250382295399

I bought it from
 http://stores.shop.ebay.com/PORTTAS-HDMI
 eBay user id: terstekel

Not trying to sell anything (and not affiliated with this seller in any
way), but I assume that there might be some interest in knowing about
where to get tested and working hardware.  YMMV of course, and I can't
really know whether the seller has replaced the adapter with another one
looking identical to the one I got...



Bjørn