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[Steve <568611@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Attempts (on a current Lucid beta) to control the screen brightness on
  my Dell Studio 1558 fail with the following errors reported in dmesg:
  
-  [ 1162.236365] ACPI: Failed to switch the brightness
-  [ 1162.379144] ACPI: Failed to switch the brightness
-  [ 1162.538226] ACPI: Failed to switch the brightness
-  [ 1162.667358] ACPI: Failed to switch the brightness
-  [ 1162.784171] ACPI: Failed to switch the brightness
+  [ 1162.236365] ACPI: Failed to switch the brightness
+  [ 1162.379144] ACPI: Failed to switch the brightness
+  [ 1162.538226] ACPI: Failed to switch the brightness
+  [ 1162.667358] ACPI: Failed to switch the brightness
+  [ 1162.784171] ACPI: Failed to switch the brightness
  
  This is true both for the keyboard's brightness controls (Fn-F4,
  Fn-F5) and for a gnome-brightness-applet on the panel.
  
  Output of acpidump, dmesg and lspci is attached.

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https://bugs.launchpad.net/bugs/568611

Title:
  Screen brightness control fails on Dell Studio 1558