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. > > > >I was so proud of myself for finally figuring out how to make the sleep > >mode work with the broken FC5. The documentation is mighty sparse. > >If I create these additional files, sleep mode seems to work, although > >I'm not sure that the battery drain is as low as it used to be: > > Actually, on my T41, FC5 is the first release to suspend/resume correctly > right out of the box (modulo an issue with powering off the graphics chip > that's been around for a while and has a known workaround). But I can > think of a few points to consider. For one thing, I'm running GNOME. One might hope that the window manager would simply manage windows and have no effect on the sleep function - but that would be probably be utopian and naive. > > Were you using APM or ACPI in FC4? I misspoke that sleep mode works in FC4. Apparently that was remembered from an even earlier time, say, FC3. Sorry! > > Did you update from FC4 or do a fresh install? Do you have pm-utils > installed? I freshly installed FC5, but I retained a separate partition with the entire FC4 system. By rebooting the FC4 system, I found that sleep mode didn't work there, either. In the earlier system that did work I must have been using APM, because I only recently learned about ACPI, and the new control files that must be added to make sleep work. I do have pm-utils installed, but don't knowingly use any of the 11 programs contained because there are only 2 man pages, and one of them is wrong - on_ac_power returns 0 with or without the charger connected. Call me a coward, but I lack enthusiasm for blindly trying programs that suggest they might irreversibly change the state of my machine. > > What's your video card? Are you seeing the machine indicate that it's > suspended properly but just stay hot and drain the battery? What part of > the machine stays hot? 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. > > Are you logged in when you suspend? Yes, certainly. I'm running X, and xfce4. I've also just tried sleeping from a basic console - with no X running - with both kernel 2.6.16-1.2133_FC5 and 2.6.17-1.2139_FC5. Both kernels sleep and awaken satisfactorily. Therefore the failure of the newer kernel to awaken with X running is almost surely a misfunction with the X server. -- David A. De Graaf DATIX, Inc. Hendersonville, NC dad@xxxxxxxx www.datix.us
