Public bug reported:
Binary package hint: acpi
I'm trying to introduce Ubuntu in Belarus !!! I'd like a guest child to return
to Belarus in August with a nice gift : a clean 8.04 to run on that excellent
spare Tecra 8000 laptop.
I'm willing to do everything I can to help fixing this problem.
Thanks for the marvellous work you're all doing.
Here are the results of my tests of basic ACPI in 7.10 and 8.04 :
The Tecra 8000 is a late 1999 computer.
So, acpi=force is needed for ACPI to run.
Tests were made with (forced) and without ACPI.
In conclusion, the differences are :
- 7.10 has no ACPI power off and 8.04 has, but only with acpi= force
- 7.10 without ACPI does a very fast (supposedly BIOS) power switch
suspend/restore that no longer works in 8.04 and with ACPI, 8.04 does a slower
suspend and does not restart.
7.10 :
- With ACPI, an unexplained CPU loop occurs. As TOP spreads the CPU load
across all processes, chances are that it's something like a badly
cleared interrupt recurring. Hence, tests with ACPI were impossible in
that release.
- Without ACPI :
- Shutdown does not turn power off, needs a power button long press.
- Suspend does turn the power off and turning it on seems to want to restart
but the computer hangs right after writing an incomplete bit of a text message
on the screen.
- BUT BUT BUT, pressing the power button does a very nice and fast
suspend/restart.
8.04a4 (tested with live CD, soon getting disk and partitioning to
install) :
- With ACPI, thanks goodness, the CPU loop is gone, but ...
- Shutdown turns the power off all-right
- Suspend works but restart is followed by a black screen and dead computer.
- Hibernate is unavailable (not in the menu).
- Power switch displays the Shutdown menu.
- Closing the computer lid suspends, but opening it kills the laptop too.
- Without ACPI (normally) :
- Shutdown does not turn power off, needs a power button long press.
- Suspend is unavailable (not in the menu).
- Hibernate is unavailable (not in the menu).
- Power switch short press does suspend, but after restart the screen is
restored but the computer hangs (no keyboard, frozen mouse)
- Additionally, when Cancel is clicked in the Shutdown menu, the Shutdown
menu is displayed again.
** Affects: acpi (Ubuntu)
Importance: Undecided
Status: New
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ACPI problems with Toshiba Tecra 8000
https://bugs.launchpad.net/bugs/193738
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