From: When I switch the computer to standby with echo -n standby > /sys/power/state the radeonfb driver tells me its suspending to state 1 but the display does not get turned off. It turns out to be a small typo in drivers/video/aty/radeon_pm.c. (from http://bugme.osdl.org/show_bug.cgi?id=2758) --- 25-akpm/drivers/video/aty/radeon_pm.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/video/aty/radeon_pm.c~new-radeonfb-powerdown-doesnt-work drivers/video/aty/radeon_pm.c --- 25/drivers/video/aty/radeon_pm.c~new-radeonfb-powerdown-doesnt-work 2004-05-23 12:52:48.532556048 -0700 +++ 25-akpm/drivers/video/aty/radeon_pm.c 2004-05-23 12:52:48.537555288 -0700 @@ -867,7 +867,7 @@ int radeonfb_pci_suspend(struct pci_dev } /* Blank display and LCD */ - radeonfb_blank(VESA_POWERDOWN+1, info); + radeonfb_blank(VESA_POWERDOWN, info); /* Sleep */ rinfo->asleep = 1; _