I've just added an Asus HD 7770 2gb to my system. everything worked perfectly before.
but now, after i've successfully unlocked the encryption it does the "exception, no handler for IQR vector" (or whatever that is), then the monitor says there's no signal for a second, and finally it shows a blank terminal with a single, static underscore. I have to hard reboot to try again.
but it works just fine in the manjaro live disk.
switching back to the integrated graphics works.
the card has spent a few years sitting in a bucket in a closet, and I didn't transport it in the absolute safest way. I hope that doesn't have anything to do with it. I doubt it would, seeing as how it's fine in a live system, but i'll mention it just in case.
I'm using a dvi cable for the connection. the gpu i was using before was an integrated radeon r5 3000, it's done the same thing with two different monitors. can't think of any other relevant details.
thanks in advance.