aticonfig --dtop=horizontal --screen-layout=left --enable-monitor=lvds,tmds1Now restart the X server and you should see video output on both monitors. I have the external monitor left of the laptop, so I need to run this command as well:
aticonfig --swap-monitorThen, both monitors work. Unfortunately, I seem to have broken suspend/resume somewhere along the way. It seems that a combination of the things listed below make suspend/resume work again. I don't know if both are required or if either helps.
- Update the fglrx driver. I'm using the kernel-module-ATI-upstream-fglrx (carries version numbers 8.452.1 and 2.6.18_53.1) as well as the ATI-upstream-fglrx package (version number 8.452.1-3.oc2) from the repository the IBM Open Client uses by default.
- Disable the AIGLX extension