Nvidia driver fails to find laptop LCD

[Lauri Kainulainen]

Binary package hint: nvidia-current

On Lucid with the latest Nvidia drivers (195.36.15-0ubuntu2) Xorg reports:

[...]
(--) Apr 20 09:16:36 NVIDIA(0): Connected display device(s) on GeForce 310M at PCI:1:0:0:
(--) Apr 20 09:16:36 NVIDIA(0): none
(EE) Apr 20 09:16:36 NVIDIA(0): No display devices found for this X screen.
[....]
(EE) Screen(s) found, but none have a usable configuration.

Tried setting EDID-values manually, but read-edid, ddcprobe and Phoenix EDID Designer all fail resulting in buggy EDID-values.

Currently works in VESA w/ wrong resolution.

Laptop is a Sony Vaio S11V9E, with NVIDIA Geforce 310M and a monitor of 1366 x 768 native resolution.

[Lauri Kainulainen (luopio)]

I solved the issue by downloading and activating in xorg.conf the same EDID-values as the users of Sony Vaio CW-laptops. This feels a bit odd as the laptop LCDs are different.

The file in question (sonycw.txt) as well as discussion of the same problem w/ nvidia 310m: http://ubuntuforums.org/showthread.php?p=9149278

[Julien-Charles Lévesque (jclevesque)]

One similar solution which I have read about is to go fetch the edid file from a windows installation (if you have one). The windows drivers detect the screen correctly and the format of the file is the same.. solution was posted for 210M but I believe it could work for 310M as well if the problem is the same (wrong edid detection)

source : http://www.nvnews.net/vbulletin/showpost.php?p=2118873&postcount=22

[Yevgeni Zolotko (e-zolotko)]

I confirm the same behavior on my Sony Vaio VPC S11 X9 R

[Stefano (stepunk)]

same bug on my Vaio VPCS11C5E with Intel i5, Nvidia GeForce 310M and Ubuntu 10.10

i've tried the solution proposed by Julien-Charles (http://www.nvnews.net/vbulletin/showpost.php?p=2118873&postcount=22) but it doesn't work for me

[dino99 (9d9)]

That version is no more supported; please open a new bug report if the actual archive found version also has the same issue.