Created attachment 461940 [details]
lspci -vvv entry for dell e6500
Description of problem:
With kernel 22.214.171.124-48.fc14.x86_64, my machine fails to fully enter suspend to ram.
It appears to powerdown everything - all indicator lights turn off, display turns off and there is no response to the keyboard including sys-rq. However the powerlight is still on solid.
Pressing the power button does not wake the machine and all I can do is poweroff the machine by holding down the power button.
The previous kernel (126.96.36.199-45.fc14.x86_64) does not have this issue.
I have a Dell Latitude e6500 with an intel gfx card. I note the change log entry for kernel 188.8.131.52-48.fc14.x86_64 has display related patches.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Close laptop lid or press suspend button
Machine appears to suspend, but has solid power light and becomes unresponsive
Machine suspends to ram, has flashing power light and can be resume by pressing power button.
After further testing, this does not appear to be linked to a specific kernel version.
Suspend/Resume was very reliable in F13 - and appeared stable in F14 to start with.
I have also tried hibernation and this also fails to finish the cycle. I.e. it never powers off and rebooting enters a normal boot up sequence rather than resuming.
I also tried running pm-suspend --quirk-none (as currently it seems to fall back to all) and this seemed to help a little, but not conclusively.
I also upgraded my bios version sometime after my f14 upgrade from A19 (or possibly A22) to A24. There does appear to be a video firmware update included which may be related. Unfortunately, downgrading the bios does not downgrade the video firmware. Downgrading to A19 (minus video downgrade) does not solve the problem.
I also tried using the pm_trace mode in the kernel, but this did not yield consistent results. one time it reported a usb 1.1 hub as the last device, another time nothing was reported against the magic number.
Are there any suggestions I can try for tracking down the issue?
FYI: Acer Aspire 5735. Symptoms exactly as described above with Fedora 14, Kernel 184.108.40.206-64.fc14.x86_64, but no problems with previous kernel 220.127.116.11-48.fc14.x86_64.
Happy to provide any useful info - say what you need.
I've made some room on my disk and installed F13 again. Suspend/resume has worked flawlessly for nearly 5 days now - 4 of which have been using the F14 kernel 18.104.22.168-64.fc14.x86_64.
So this indicates it is a problem in F14 but not (directly) the kernel or the BIOS version.
I've now changed my F14 installation to use F13 xorg-* rpms and also the various mesa rpms too (my system froze after a little while before I did this).
Since then, my F14 has had no suspend failures over about 3 days running time.
Is this still happening on a fully updated F14?
I have long since upgraded to F15 where this problem is not present.
Thank you for letting us know.