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  1. 22 Jul, 2007 2 commits
  2. 19 Jul, 2007 1 commit
  3. 03 Jul, 2007 3 commits
  4. 20 Jun, 2007 1 commit
  5. 02 Jun, 2007 1 commit
    • Tear's avatar
      ACPI: Remove Dell Optiplex GX240 from the ACPI blacklist · 4d2fafd1
      Tear authored
      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: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      4d2fafd1
  6. 01 Jun, 2007 32 commits