diff options
| author | Tear <tarrqt@yahoo.com> | 2007-05-23 14:12:30 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-06-02 00:40:37 -0400 |
| commit | 4d2fafd17a325b3f4f5f9edb1211bc7f4c311269 (patch) | |
| tree | ea61965484ab3f88a756df755cc41dbaddc5c6a0 /arch/i386/kernel/acpi | |
| parent | f285e3d329ce68cc355fadf4ab2c8f34d7f264cb (diff) | |
ACPI: Remove Dell Optiplex GX240 from the ACPI blacklist
I have a Dell Optiplex GX240 and when I boot Linux, ACPI gets set up by only
acpi=ht. dmesg shows the following line:
DELL GX240 detected: force use of acpi=ht
Everything seemed to be fine. However, I discovered that everything is not
fine. The USB controller works so slowly that copying a few (uncached) 1
megabyte large photos from a USB-enabled digital camera takes many minutes
instead of a couple of seconds.
I am using Linux 2.6.21.1 on a Debian 4.0 ("Etch") system.
I thought that this might be related to ACPI. So I tried to boot with _only_
"acpi=force" appended to the kernel command line. Voila, the USB controller
started to work at full speed and copying photos from my digital camera took
only seconds.
I tested the system with "acpi=force" and could not find anything which did
not work.
I thought that this might be related to interrupts and APIC as well. (Note
that this is APIC, not ACPI.) I tried booting with _only_ "noapic" and
"nolapic" appended to the command line. Again, the USB controller started to
work at full speed.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/i386/kernel/acpi')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 280898b045b..a2c8b9efd70 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -971,14 +971,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = { }, { .callback = force_acpi_ht, - .ident = "DELL GX240", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), - DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), - }, - }, - { - .callback = force_acpi_ht, .ident = "HP VISUALIZE NT Workstation", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), |