On Tue, Jun 27, 2006 at 09:22:47AM -0400, Matthew Saltzman wrote: > > On Mon, 26 Jun 2006, David A. De Graaf wrote: > > >On Sat, Jun 24, 2006 at 09:51:36PM -0400, Matthew Saltzman wrote: > >>On Sat, 24 Jun 2006, David A. De Graaf wrote: > >> > >>>With kernel-2.6.17-1.2139_FC5 my IBM T30 laptop will no longer enter > >>>sleep > >>>mode. More accurately, it won't wake up. When I close the lid and later > >>>reopen it, the old XFCE4 display lights up, but is frozen. Nothing > >>>works - > >>>CTL-ALT-F2, CTL-ALT-BS. The only option is to press and hold the power > >>>button to shutdown and reboot. > >lspci says my IBM T30 laptop has this: > >01:00.0 VGA compatible controller: ATI Technologies Inc > > Radeon Mobility M7 LW [Radeon Mobility 7500] > > > >I haven't accurately measured the comparative rates of battery > >discharge while asleep vs. awake because it takes a long time to do > >the experiment. I will, though. > >I do have the subjective recollection that when the earlier non-ACPI > >system slept, the battery drain was very, very low. > >Now, after pressing Fn-F4 to enter sleep mode, I can see that the screen, > >although blank, seems to still have the backlight on. That would seem > >to use power unnecessarily, but I can't find any way to turn that off, > >too. > > OK try the following: > > (1) Edit /etc/modprobe.conf and add the following: > > options radeonfb radeon_force_sleep=1 > > (2) Create /etc/sysconfig/mkinitrd containing the following line: > > MODULES="radeonfb" > > (3) Rebuild your initrd: > > mkinitrd -f /boot/initrd-2.6.17-1.2139_FC5.img 2.6.17-1.2139_FC5 > > (4) Reboot. > > (5) Test suspend. > Regrettably, this method has no discernible effect with either kernel. Kernel 2.6.16-1.2133_FC5 still sleeps and awakens correctly. Kernel 2.6.17-1.2139_FC5 sleeps, but awakens with a frozen X screen and keyboard. Thanks for the suggestion, though. It's probably time for me to visit bugzilla. -- David A. De Graaf DATIX, Inc. Hendersonville, NC dad@xxxxxxxx www.datix.us
