Re: kernel-2.6.17-1.2139_FC5 won't sleep



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

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