Forgot to add Richard, sorry for the double post. On Wed, 2007-04-25 at 21:50 +0800, Antonino A. Daplas wrote: > On Wed, 2007-04-25 at 09:01 -0400, Dave Jones wrote: > > On Wed, Apr 25, 2007 at 01:31:02PM +0200, Adrian Bunk wrote: > > > On Wed, Apr 25, 2007 at 04:06:05AM -0700, Andrew Morton wrote: > > > > On Mon, 23 Apr 2007 23:49:09 +0200 Adrian Bunk <[EMAIL PROTECTED]> > > wrote: > > > >... > > > > > Subject : ThinkPad X60: resume no longer works (PCI related?) > > > > > workaround: CONFIG_FB_BACKLIGHT=n > > > > > References : http://lkml.org/lkml/2007/3/13/3 > > > > > Submitter : Dave Jones <[EMAIL PROTECTED]> > > > > > Caused-By : PCI merge > > > > > commit 78149df6d565c36675463352d0bfe0000b02b7a7 > > > > > Handled-By : Eric W. Biederman <[EMAIL PROTECTED]> > > > > > Rafael J. Wysocki <[EMAIL PROTECTED]> > > > > > Antonino A. Daplas <[EMAIL PROTECTED]> > > > > > Status : unknown > > > > > > > > Is this related to the problems Jeremy has been looking at? > > > >... > > > > > > Dave and Jeremy hran into similar looking but most likely different > > > problems. > > > > > > For Jeremy -rc7 is working fine, but for Dave it doesn't. > > > > I think this was due to Jeremy not having CONFIG_FB_BACKLIGHT=y in his > > config. > > This is really weird, as CONFIG_FB_BACKLIGHT just selects > BACKLIGHT_CLASS and LCD_CLASS, and adds an entry (bl_curve) > under /sys/class/backlight/*/. ACPI_IBM which is set (presumably) in > Dave's kconfig, also selects the BACKLIGHT_CLASS. And the only possible > framebuffer drivers in the thinkpad are vesafb and intelfb, none of > which has a backlight driver. > > I'm still at a loss how this happens. Dave, can you post your config? > And have you tried the following settings: > > FB_BACKLIGHT=y > ACPI_IBM=n > ACPI_VIDEO=n > > I'm also adding Richard Purdie to the CC list. > > Tony > > PS: I also get a blank display on resume with a Toshiba laptop. But > cycling through the Fn keys brings it back. I don't know if this is a > regression, I will have to try older kernels. >
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