The issue I am having trouble with is how to get information from a user before I can offer an answer.
The question(or statement) is: Unable to connect Postgis from QGIS 1.8.0
And it looks like the current answers are trying to help the OP troubleshoot or giving "I think the problem is this" kind of advice. It's easy to guess what the issue is but it's also possible - given the right info from the OP - to identify and solve the actual problem.
I think the OP just needs to take some Postgresql/PostGIS 101 (not just read blogs, which is why I think they are here!) classes or dive into the docs (hard to use the docs without the jargon, ie - this user doesn't know what a service file is or how to use it).
Options I've Considered:
- suggest to move it into Chat
- litter comments with inquiries for more info (don't like this... b/c I already posted once)
- modify original question with blanks for the OP to fill in (ie, requesting specific info)
- flag as "too localized" as I don't think this problem is wide spread and is related to this users specific setup (did this)