[ltp] Re: T30 Hibernate help needed!!

[D. Sen]

Here is another data point for the T30.

I have a save2disk.bin file in /dev/hda1 (FAT32 partition):

-rwxrwxrwx    1 root     root         1.4G Jul 19 15:27 save2dsk.bin

Have 1 G RAM.

Fn+F12 just produces a beep (no hibernation). Any hints on how to fix 
this would be appreciated.

(By the way suspend to RAM works fine with both GLcore, glx and dri 
modules. However this is wht the X that came with the Mandrake 
Distribution (actually I recompiled the radeon.o linux driver when I 
recompiked the kernel, but the rest are from the mandrake distribution).

DS


Hector Socas Navarro wrote:

> Ok, I'm almost there. I hope with a little bit more help I can get 
> this thing working.
>
> I'm trying two different approaches in parallel: the BIOS hardware 
> hibernation and the software suspend swsusp. In both cases, I come to 
> a point where I can suspend but then the system freezes after 
> restoring. Here's the details:
>
> 1) BIOS suspend-to-disk feature: I'm using the windows xp recovery 
> partition /dev/hda2 for the suspend. I don't have any critical data in 
> the windows partitions so I don't see a need for it. I changed the 
> partition type with fdisk and ran mkdosfs on it. I created the 
> save2dsk.bin file in this partition using the tphdisk.c utility. This 
> didn't work before on my /dev/hda8 partition, which I created 
> specifically for this purpose. I still don't know the reason but I 
> suspect you need a primary partition (which hda2 is), and not a 
> logical one (like hda8) for hibernation. So, this is what my partition 
> table looks like right now:
>
> Command (m for help): p
>
> Disk /dev/hda: 240 heads, 63 sectors, 7752 cylinders
> Units = cylinders of 15120 * 512 bytes
>
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hda1   *         1      1428  10795648+   7  HPFS/NTFS
> /dev/hda2          7525      7752   1723680    6  FAT16
> /dev/hda3          1429      7524  46085760    f  Win95 Ext'd (LBA)
> /dev/hda5          1429      3525  15853288+   c  Win95 FAT32 (LBA)
> /dev/hda6          3734      7320  27117688+  83  Linux
> /dev/hda7          7321      7524   1542208+  82  Linux swap
> /dev/hda8          3526      3733   1572448+   6  FAT16
>
> Setting the hda2 type to 6 or 16 doesn't seem to make any difference. 
> Also, I don't seem to need the hibernation partition mounted.
>
> Ok, so here's the problem. If I set the machine to hibernate (with 
> Fn+F12) while in X mode, I get the progress screen with the three bars 
> and the system shuts down upon completion. Now when I turn it back on, 
> it restores the saved state but when the screen comes up it is 
> slightly corrupted at the top of the display and the computer is 
> frozen. Trying to switch to text mode (Ctl+Alt+F1 - F6) doesn't work. 
> I have to do a hard reboot. If I first switch to text mode and then 
> hibernate, the system is restored back to the text screen and it seems 
> to be working just fine. However, when I switch back to graphics mode 
> (Ctl+Alt+F7), again the top few lines of the screen are corrupted and 
> the computer freezes.
>
> Any ideas on why this corruption happens? I tried increasing the size 
> of the save2dsk.bin file (tphdisk 1600 > save2dsk.bin) with the same 
> result (I have 1Gb memory).
>
> Thanks!
>
> 2) swsusp:
>
> I couldn't patch properly my old 2.4.20-19.7 or the new 2.4.22 kernel 
> versions, but as the doc say the current swsusp is targeted for 2.4.21 
> so I downloaded 2.4.21 and compiled it. Patching went fine (I only 
> applied the swsusp patch, none of the others) but while building the 
> kernel it complained about some SCSI driver. I knew SCSI is not 
> supported by swsusp, so I went to the .config file and commented out 
> each and every line with the SCSI string in it (there's quite a few of 
> them, by the way). After doing this I could build the patched kernel 
> and the modules with no problem.
>
> When I boot to this kernel, I can use shutdown+z or the hibernate 
> script provided with swsusp. Both commands seem to put the system into 
> hibernation just fine. Then when I restore my machine, whether I was 
> in text or graphics mode, my screen is completely corrupted (not just 
> the top few lines as in the previous case) and the computer is frozen.
>
> Any suggestions?
>
> Thanks to all for your help getting me this far.
>
> Hector



-- 
Dr. D. Sen
School of Electrical Engineering & Telecommunications
University of New South Wales
Sydney
NSW 2052
Australia