On Mon, 2008-12-01 at 11:42 -0600, James Bottomley wrote: > You probably remember the system, it's my fujitsu P7120 lifebook with > the funny backlight wiring. > > Previously, suspend/resume was made to work by saving the PCI state > including the legacy backlight register setting (and worked just fine > when invoked with a hal quirk). > > On FC9, with the 2.6.26 fedora kernels, hal no longer does anything and > relies on the i915 kernel driver. This was perfectly fine, except that > the backlight was now being restored to full brightness on resume rather > than the setting on resume. The other annoyance was that VT consoles > were now lost on resume (switching to them produces a black screen, > although switching back to vt7 where X is running is fine). > > As of the 2.6.27 fedora kernels, the backlight is now off on resume, > which is even more annoying. It can be turned on by doing a VT switch, > although all the console VTs are still blank, so there looks to be some > bug in the i915 driver that crept in between 2.6.26 and 2.6.27.
Hum as quick answer , kernel fedora 2.6.27 have change _DOS thing. So may be that is the problem. The fedora patch is talked about on lkml http://lkml.org/lkml/2008/11/10/233 About this _DOS , I reported this problem a long time ago, which now is on http://bugzilla.kernel.org/show_bug.cgi?id=6001 Regards, -- Sérgio M. B.
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