Red Hat Bugzilla – Bug 112112
Samsung 191T+ and GForce3 instalation failes connected to DVI connector
Last modified: 2007-11-30 17:10:34 EST
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User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET
Description of problem:
I have Samsung 191T+ monitor connected to Hercules GForce3 64Mb over
DVI. Durring installation (Anaconda) can't find the monitor and when
it is tryingto start X it just goes blank. If I specity
resolution=1280x1024 X starts but all noisy. I tried also noprobe but
that did not work. I have this same setup under Suse 9.0 and Suse
installer worked just fine.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Boot linux setup
Actual Results: Blank screen
Expected Results: Start X installer
This is not a security bug
As roon, run 'ddcprobe' and paste the output to this report. Perhaps
your monitor does not have an entry in our monitor database.
Here is the output. The exect model is Samsung 191T+. Here is the
Here is the spec from it:
Horiz. Rate (Analog) 30-81
Horiz. Rate (Digital) 30-63
Vertical Rate 58-85
Bandwidth 135 MHz
Again. The monitor works fine and is beeing detected durring
installation when connected to VGA connector. DVI does not work. The
auto detection when VGA connected says that Samsung monitor has been
found. No specific model. I think this is a problem with generic
nVidia driver and DVI. No matter what I do I can't get it working on
DVI. I hope to be of any other help.
[root@localhost root]# ddcprobe
Videocard DDC probe results
Description: NVidia Corporation NV20 (GeForce3) Board
Memory (MB): 64
Monitor DDC probe results
Horizontal Sync (kHZ): 30-81
Vertical Sync (HZ) : 56-75
Width (mm): 380
One more thing. I just installed the latest nviddia drivers .4496 and
DVI started to work
Looks like there is a problem with the initial driver and DVI that
comes with fedora 1. Also the monitor is not in your database that is
another thing :) Let me know if I can help/test anything else
I have added your monitor to our database, so that should solve at
least part of the problem. Because of the driver problem you are
seeing with the open source drivers, I am changing the component of
this bug report to XFree86 to see if mharris knows more about the DVI
The 'nv' driver does not support flatpanel displays in XFree86 4.3.0.
There is "experimental" support only for DFPs, and it requires
end user hand editing of the spec file in order to try to use it.
It is not autodetectable and not supported, and known to not work with
a lot of hardware - hence the experimental status.
This will be officially supported in a future OS release, possibly
Fedora Core 2.
*** This bug has been marked as a duplicate of 88360 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.