Re: Sony Vaio PCG-C1VRX/K Picturebook, Suspend to Ram works, but has a strange effect on the idle display

[Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>]

On Fri, 2005-06-10 at 20:38 +0200, Benedek Frank wrote:

> Now, I can suspend and resume with the script I wrote for it, but even while 
> suspended, the screen wont turn 100% off. If I tilt in in a way, about 
> 160degree angle, I can see some text on the screen. Of course I can barely 
> see it, but I can for Christ`s sake, while it should be off. For an 
> "untrained" eye it seems the screen is black of course, but I got suspicious 
> after a few days of being able to suspend, as the laptop wasnt 100% quiet. 
> The screen is making a little, very very little scratching noise, that I 
> cannot really describe its more like an "electric" noise. Its bugging me, as 
> it must be using some of my battery, while it should not be using anything 
> other than what the RAM needs to not loose its stored memory.

If you don't have a PCI driver bound to your video device, the kernel
will not actually power it down. This is probably a deficiency in the
kernel, but still. On most machines the BIOS will power it down anyway,
but this isn't always the case.

-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org



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