Debian 9 with AMD HD 5700 / Debian 8 with sgfxi
 

Hi i have problem when i install debian 9 my max res i 1024x768 i try to use xrandr but after reboot i still have 1024x768 is D9 can run HD5700 ?

Debian 8 after install sgfxi and reboot i have Out of range problem in login screen.

i search all my problem in internet for 12 hours and i still do not fix this problem

Hello untimunti,

Welcome!

xrandr settings do not survive reboots. You have to write a script containing the xrandr commands and run it at each boot to keep the settings. Depending on which distro you have, you can set up the monitor using gnome-control center or kde-system-settings, either one usually called simply, 'settings', in the menu.