I am not sure if it is a bug, but after a time period of maybe 20 minutes, screen is blanking even though i have set Option "BlankTime" "off" in the "ServerLayout" section and Option "DPMS" "False" in the "Monitor" section. Btw, I am using an IBM Thinkpad R51 with an ATI Radeon R250 [Mobility FireGL 9000] with the radeon driver, if this matters.
I believe you're experiencing two different bugs : DPMS off is not being honored. This has been fixed. DPMS timers are being reset after 20 minutes. I've seen the second issue in another bug report, and it's a valid one. So I'm really just confirming this for now, and I'll look into it later.
Pretty sure this has been fixed for a long time.
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