desktop resolution stuck at 640x480 (without integrated graphics)

[droomagon]

i'm not exactly sure where to post this subject, but here goes.

so what i am doing as a test, and since cpu mining is really hot as of late, is how do you remote into the computer that doesn't have integrated graphics?

i have installed teamviewer program on my test machine, as soon as i remote into the test machine (amd cpu without integrated graphics), the resolution is only 640*480, its so small i can't even open file explorer...

anyone having this trouble? if so, how do you solve this problem?

thanks!