Same behavior here:
Jaunty amd64 with an ATI 4850 (also tried with a 3850) using Catalyst 9.4 fglrx driver.
xset dpms commands make the screen blank, however the backlight is still on. Vbetool is able to turn off the backlight.
Same behavior here:
Jaunty amd64 with an ATI 4850 (also tried with a 3850) using Catalyst 9.4 fglrx driver.
xset dpms commands make the screen blank, however the backlight is still on. Vbetool is able to turn off the backlight.