Video garbage on both laptop and external monitor

I wonder if anybody has any suggestions for me to try with this problem. After I upgraded to 13.2, my external monitor no longer works if I am logged in as a user. If I log in as root, all is fine. As a user, nothing I can do with the external monitor connected lets me see anything but garbage. If I remove the external monitor, <ctrl><alt>F12 and then <alt>F7 I get back to my original screen with nothing lost. I have tried both unified outputs and non-unified outputs in configure desktop/display with the same results.

I suspect that there is a config file screwed up in my user directory, but have no experience with video so don’t know which. (40 years experience with command line :slight_smile: )If I knew how to do something from a command prompt I am sure I could fix it, but cannot get into any KDE graphics tools with the external monitor connected.

Here is my config:

Tosh Satellite L300D
LG Flatron L1511S monitor

cat /etc/os-release
VERSION=“13.2 (Harlequin)”
PRETTY_NAME=“openSUSE 13.2 (Harlequin) (x86_64)”

Toshiba:~ # xrandr
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS connected primary 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
1280x800 59.98*+
1280x720 59.86
1152x768 59.78
1024x768 59.92
800x600 59.86
848x480 59.66
720x480 59.71
640x480 59.38
HDMI-0 disconnected (normal left inverted right x axis y axis)

I cannot get xrandr to run if the external monitor is connected

Any help would be appreciated!

Nigel Johnson

Since you got no replies yet, I’ll venture some guesses:

  1. Does your user belong to group “video”?

  2. Did you try to boot with the external monitor connected or only hot-plugging?

  3. When xrandr fails, do you see any error messages in the terminal, dmesg or xorg logs?

  1. Try another cable, if possible. I’ve suffered years with suboptimal external VGA monitors because the cable was defective/not fully pinned.