[ubuntu] Ubuntu 9.10 on Toshiba Portege R200 - laptop screen not working with ext. monitor

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http://ubuntuforums.org – Hi ! I have Ubuntu 9.10 installed on a Toshiba Portege R200. By itself things seem to be working fine. So one day I got an external monitor and plugged it into the R200. When I performed a "Configure display settings", unchecked the "mirror screen" and clicked "detect monitors", the laptop basically hung and the external monitor remained blank. In fact the power light remained amber color indicating it did not detect any signal coming from the laptop. So I read on this forum a suggestion to reboot the R200 with the external monitor plugged in. Reb (Hardware)