[RV770] System hangs when display goes in sleep mode (with mid profile setting)

Submitted by Benjamin Bellec

Assigned to Default DRI bug account

Link to original bug (#38756)

Description

I set my Radeon in mid profile mod most of the time. After 10 minutes of inactivity, my display goes in sleep mode. Then I cannot resume the computer. I need to hard reboot. Even SysReq isn't helpful.

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV770 [Radeon HD 4850] [1002:9442] Sapphire Radeon 4850
Fedora 15 x86-64
kernel 3.0-0.rc5.git0.1.fc16
libdrm 2.4.26-1.fc15
xorg-x11-drv-ati 6.14.1-2.20110525gitfe5c42f51.fc15