Can you try and remove your xorg.conf? Xorg nowadays figures out resolutions pretty much on its own, and then having resolution stuff in xorg.conf can be confusing. Could you report back on whether removing xorg.conf changes anything and upload the Xorg.0.log you get when running Xorg without the config file?
Can you try and remove your xorg.conf? Xorg nowadays figures out resolutions pretty much on its own, and then having resolution stuff in xorg.conf can be confusing. Could you report back on whether removing xorg.conf changes anything and upload the Xorg.0.log you get when running Xorg without the config file?