Public bug reported:
Hibernation in my Panasonic R4 laptop worked in Ubuntu 6.06 (Dapper) but
broke for some reason during the upgrade to 7.04 (via 6.10). I further
upgraded to 7.10 (Gutsy) and the situation is still the same.
The system clearly writes something to disk when I ask it to hibernate.
However, when I press the power button again, it does not even try to
wake up from the hibernated state. Instead, it just boots up normally.
After the boot, the swap space is not in use, apparently because there
is hibernation data in the swap partition. I can fix that problem by
reinitializing the swapspace with "mkswap /dev/sda1" and fixing the UUID
entry in /etc/fstab (the UUID entry is changed during mkswap).
One interesting note which may have something to do with this problem is
that in 6.06 (Dapper) the system hard disk showed up as /dev/hda and now
it is /dev/sda. Its a PATA (not SATA) disk if I'm not mistaken, kernel
says ata1.00: ATA-6: TOSHIBA MK6034GAX, AC101F, max UDMA/100.
I'm attaching the kernel log from a failed hibernate / resume attempt,
output of lcpci -vvnn and dmidecode.
I should also note that suspend to RAM works nicely now (it didn't in
Dapper).
Arto
** Affects: linux-source-2.6.22 (Ubuntu)
Importance: Undecided
Status: New
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Hibernation broken in Panasonic R4
https://bugs.launchpad.net/bugs/199500
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