Thank you for all the suggestions. I made a list of them, but while pondering them something else occurred to me: that, since the desktop manager seemed to be starting at the correct resolution, the problem perhaps wasn't with X per se, but with some setting for TDE that was confusing the issue. So I renamed ~/.trinity and rebooted (yes, I know that the reboot probably wasn't necessary, but I wanted to get a completely uncontaminated situation, with both X and TDE starting with no chance of any leftover junk confusing things). TDE came up at 1920x1200. So far, everything now seems to be working correctly. So I've tentatively concluded that some leftover configuration parameter somewhere was causing TDE to start at a resolution different from the X resolution, and that from now on it should start at the correct resolution. Somewhere I imagine that there's documentation for all the configuration parameters that affect TDE startup, but I was unable to find said documentation; so while I'm happy that things now seem to be working, I'm not particularly comfortable with the solution. If someone knows where detailed documentation for TDE configuration can be found, I'd be delighted if they would share that information. Indeed, the entire TDE startup process, really: somewhere there's presumably something that tells X to start sddm when X starts; and somewhere else there must be something that tells TDE to start when "TDE" is selected and I provide login credentials to sddm; and then TDE must start... but the details of any of this seem to be hard to find. I'd really like to educate myself to understand every step in the process. Doc -- Web: http://enginehousebooks.com/drevans
Attachment:
signature.asc
Description: OpenPGP digital signature
