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

[Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>]

Hi!

> I finally got my Suspend to RAM working with my Picturebook. If interested 
> how, please go to
> 
> www.celifornia.com/documents/sonyvaio.html
> 
> But I have got one problem. If I try the suspend with the 2.6.11 kernel that I 
> have, it wil do it beautifuly, but it will not resume from suspend no matter 
> what I do. I find it googling, that I need to pass a special boot parameter 
> with Grub, that looks like this
> 
> acpi_sleep=s3_bios
> 
> 
> After all my Grub entry looks like this:
> 
> title           Debian GNU/Linux, kernel 2.6.11
> root            (hd0,1)
> kernel          /boot/vmlinuz-2.6.11 root=/dev/hda2 ro acpi_sleep=s3_bios
> initrd          /boot/initrd.img-2.6.11
> savedefault
> boot
> 
> 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.
> 
> Thanks for helping, and let me know if you need any other log or files from my 
> lappy.

Well, you'll need to write low-level support for sleeping your video
card/panel. Good luck.
								Pavel


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