Ubuntu
linux-source-2.6.22 package

  1. Bug #134391
  2. Comment #8

Comment 8 for bug 134391

Revision history for this message
Phil Sung (psung) wrote :

I'm also seeing this on Hardy with 64-bit kernel 2.6.24-2.4 on a Thinkpad X61s.

Neither the acpi_sleep nor the POST_VIDEO suggestions work for me, but I can get the backlight back by switching to another VT (e.g. with Ctrl+Alt+F6) and then back.