volkerdaschner.de

I’ll try this one in English. The problem might occur not only in Germany

Used Unixes

• Ubuntu 10.04.1 desktop amd64
• Ubuntu 10.04.2 desktop amd64
• openSUSE 11.3
• Xubuntu 10.04 desktop amd64

The Problem

Every Linux installation went without errors. For the initial setup I used an old CRT @ VGA, LAN, USB mouse and USB keyboard. After installing TeamViewer 6 and enabling the VNC server I shut the computer down and unplugged everything but the LAN cable.

• First try: Boot. Neither TeamViewer nor my VNC client were able to connect. I could ping the network card though.
• Second try: Switching the computer off, plugging the VGA cable of the CRT monitor in. No keyboard, no mouse. Boot. Both TeamViewer and VNC get a connection.
• Third try: Same as second, only removing the power cable of the monitor. So the monitor gets absolutely no juice! Both TeamViewer and VNC get a connection!
• Fourth try: Removing the monitor, but keeping the VGA cable plugged in. No connection.

Especially cases three and four are weird. The PC seems to recognize a monitor even when it is currentless.

Hardware
HP dx5150 Business PC with the following components:

• Mainboard: MSI 09AC, Chipset ATI Xpress 200 (RS480) Rev. 01, Southbridge ATI SB400 Rev 00, BIOS Version 1.04 from 05/24/2005
• CPU: AMD Athlon 64 3000+ “Winchester”, Socket 939, 90nm
• 2 x 1024 MB DDR RAM PC3200 (2000 MHz)
• Graphics: Radeon XPRESS 200 Series (Onboard)

Solution / The End

I also tried the older Ubuntu 9.04 desktop amd64. Only the LAN cable was plugged in. Guess What? No problems whatsoever. At least with VNC. The installation of TeamViewer 5 and 6 seemed to be successful, but both versions would not start.

Ultimately I gave up and installed an unused Windows Vista. Shame on you, Linux