Re: backlight problem after standby mode
Right. On a fresh cold boot, "xset dpms force off" turns off the backlight. When the problem starts happening, this command has the same effect - backlight on full, screen all white. I wish I could identify one specific cause of it, but so far no idea.
I could try the vesa driver, but it might take a few days for any problem to surface. Won't really have conclusive evidence one way or the other.
I also was wondering if this could somehow be related to VDPAU accelerated video playback, because nothing else I do on this machine is particularly relevant to the GPU. But I do occasionally watch H264 videos with mplayer and vdpau. But I haven't been able to reproduce it from that yet either.