Sony Vaio PCG-C1VRX/K Picturebook, Suspend to Ram works, but has a strange effect on the idle display
Hi
This is a repost from the Debian - laptop list, I hope you guys can help me with some advices, so here it goes:
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.
Bence
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Quoted 10 lines · Benedek Frank
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.
Signature · 9 lines
Matthew Garrett | [email protected] ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20
Hi!
Quoted 33 lines
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
bootNow, 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.
Quoted 2 lines
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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