Suspend To Ram doesn't work with Sony Vaio TX2

[unggnu]

Suspend To RAM doesn't work with Sony Vaio TX2 with every Ubuntu I have tested (Breezy, Dapper and Edgy). I shuts down and the Power LED blinks red instead of green but after starting again through key press oder power button it never comes up again. After resume the hard disk led glows permanent for around 30 seconds and then went out and the screen is always dark. Laptop doesn't react to keys. Only a hard shut down through holding the power button for about three seconds works.
I have experimented with many acpi-support settings like resetting hard drive, disabling dma, vbestate restore and so on but nothing helps. Even I have tested nearly every combination of s2ram without success. Always the same problem.
Of course suspend to ram work under Windows but the interesting thing is that after suspend resume it sounds/looks like a reboot since the hard disk seems to reset and some LEDs flashes.
I have searched for a bios update but I haven't found any one on sony homepage.

[Pascal De Vuyst (pascal-devuyst)]

Thanks for your bug report.
Did you try to any of these boot parameters:

acpi_sleep=s3_bios
or
acpi_sleep=s3_mode
or
acpi_sleep=s3_bios,s3_mode

I would be nice if you could participate in LaptopTesting and post your results to the wiki by following these instructions: https://wiki.ubuntu.com/LaptopTesting.

[unggnu (unggnu)]

I have tested the boot options and s3_bios even with noapic nolapic but I always got the same problem. Laptop hangs after resume.
The most frustrating thing is that the TX3 series seems to suspend to ram without problem out of the box.
I have found only one post about Sony TX2 in which someone reportedly got suspend to ram to work. I have send him a mail to ask how. Maybe he has a working solution.

[canatella (dam-cosinux)]

same problem here with a vaio FS415M. It worked with dapper (kernel 2.6.15). I tried kernel 2.6.18.1 and 2.6.19-rc4 but it's the same problem. Harddisk led stays on for some seconds, then shutdown, laptop crash and I need to do a hard reset.

[canatella (dam-cosinux)]

and I forgot to say that it also did not work when booting using init=/bin/bash and removing all unused modules. The only modules that were loaded were ata piix and ext3 relate modules.

[Timothy Smith (tas50)]

Marking as duplicate. Seems like there's a real issue going around with the i810 driver on Intel 910/915 graphics cards. There's a lot of bugs on this one, but none of the bugs are that great. Picked the best and marking duplicates

https://launchpad.net/bugs/67710

[canatella (dam-cosinux)]

As you can read in my lspci output (lspci output for sony vaio FS415M) I don't have that video card. Also, resume did not work in single user mode, with only the disk and filesystem drive modules loaded. So I don't think it's linked to the video driver.

[unggnu (unggnu)]

I thought at first time that suspend doesn't work too. Going to suspend works fine and is fast but after resume it seems to hang. This is not exactly true since after around 40 seconds there appears a mouse and after another bound of seconds the password dialog of the kde screensaver appears and everything seems to work. I am not sure if this works always but it works at least one time. I don't have to mention that with this long time suspend to ram is useless since hibernate and a normal start is at least as fast and has no power consumption.
I can confirm that "Of course suspend to ram work under Windows but the interesting thing is that after suspend resume it sounds/looks like a reboot since the hard disk seems to reset and some LEDs flashes.".
Could you please fix that? I use my laptop very often mobile and it is so embarrassing when the windows guys just open their laptop and it is useable and I have to boot completely. Hibernate works fine but it is much more slower on linux even with supend2 and compression.

[Launchpad Janitor (janitor)]

[Expired for linux-source-2.6.17 (Ubuntu) because there has been no activity for 60 days.]