[tlinux-users 00230] Toshiba A70 Ubuntu won't re-awaken from suspend

Chris Hermansen c.hermansen at telus.net
Sun Nov 9 06:27:12 JST 2008


Hello;

My first post to this mailing list, please forgive me if I'm missing a
protocol or something.

I have a Toshiba A70 (PSA70C-RX100E) of approximate vintage spring 2005.
I converted it to Ubuntu back in 5.10 days and it has remained an Ubuntu
machine ever since.

Suspend had never worked.  Rather, I should say, suspend may well be
working but the computer won't re-awaken full from suspend.

What happens is on selecting suspend is that the screen display goes
away and the light "ring" around the power switch starts to slowly flash
orange (instead of its normal steady blue).  All the fans, etc turn off.
So far, so good; pretty much the same behaviour I recall from Windows
days.

However, when I press the power switch, the solid blue "ring" light
comes on, as do fans, but there is no sign of the display re-awakening,
nor any obvious audible responses to typing on the keyboard.

What may be a related issue:

Ever since about Ubuntu 7.04 I have had the message

MP-BIOS bug: 8254 timer not connected to IO-APIC

on boot.  For several versions this was accompanied by unstable
behaviour (system lockups, etc) unless the system was booted with the
"noapic" option.  However since 8.04 this option has not been necessary
for stable operation.

Now, I'm at 8.10, and in this version the system seems stable as well.
The message is found in the log, typically as:

Nov  8 08:14:28 temuko kernel: [    0.022655] ACPI: Core revision
20080609
Nov  8 08:14:28 temuko kernel: [    0.026501] ACPI: Checking initramfs
for custom DSDT
Nov  8 08:14:28 temuko kernel: [    0.332173] ENABLING IO-APIC IRQs
Nov  8 08:14:28 temuko kernel: [    0.332346] ..TIMER: vector=0x31
apic1=0 pin1=2 apic2=-1 pin2=-1
Nov  8 08:14:28 temuko kernel: [    0.336021] ..MP-BIOS bug: 8254 timer
not connected to IO-APIC
Nov  8 08:14:28 temuko kernel: [    0.336021] ...trying to set up timer
(IRQ0) through the 8259A ...
Nov  8 08:14:28 temuko kernel: [    0.336021] ..... (found apic 0 pin
2) ...
Nov  8 08:14:28 temuko kernel: [    0.375844] ....... works.

There does not seem to be a newer BIOS update for this issue.

Beyond the above issue, I can't spot any other obvious errors in the
kernel logs.

Does anyone have any ideas?  Thanks in advance!
-- 
Regards,

Chris Hermansen · mailto:c.hermansen at telus.net




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