Debian Hardware :: Failed To Assign Any Connected Display Devices

Jun 8, 2015

Had this strange issue ....

Steps
a. Working Gnome desktop with NVidia proprietary drivers in Jessie.
b. Something happened (see below)
c. Still working Gnome desktop with NVidia proprietary drivers in Jessie.
d. Reboot
e. Boot up in low res -can see the terminal messages but no X/ Gnome Desktop
f. CtrlAlt-F1 takes to terminal login
g. Log in, looked at dmesg, syslog shows no errors but looking at Xorg.[0-5].log shows:

Code: Select all[     7.942] (II) NVIDIA(GPU-0): Found DRM driver nvidia-drm (20130102)
[     7.943] (II) NVIDIA(0): NVIDIA GPU GeForce GT 240 (GT215) at PCI:1:0:0 (GPU-0)
[     7.943] (--) NVIDIA(0): Memory: 1048576 kBytes
[     7.943] (--) NVIDIA(0): VideoBIOS: 70.15.27.00.00
[     7.943] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[     7.945] (--) NVIDIA(0): Valid display device(s) on GeForce GT 240 at PCI:1:0:0

[Code] ...

After looking at this post [URL] .... poked around at the back of the monitor and found the DVI cable loose. Plugged it in tight and rebooted and Gnome desktop came up as good as ever.

Step b. , as it turns out, was someone had adjusted the monitor height resulting in the DVI cable coming loose but not getting pulled out entirely.

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