Description of problem:
It is a common problem with suspend/resume but I presume I have got some statistics and some clue it is a combination of hardware/kernel conflicts.
I have an Acer Aspire 2920 laptop, 4GB RAM, 965gm chipset, BIOS v1.14, etc (the rest is not relevant, I guess).
When I make a suspend from the GNOME environment by any means (pm-suspend, choosing from menu, closing the lid, leaving for a while with the battery only) it does suspend normally and blinks with the red led around the power button.
Now, when I resume, the laptop does start BUT it comes to a working state ONLY if I press either 'spacebar' or 'power' button. In this case it is a fully working device, having all the desktop, wireless and sound back.
However, ANY other key ('enter', 'ctrl', 'f?', 'esc', 'any letter', etc) produces the following behavior (step by step):
1. blue light comes instead of red on the led around the power button.
2. Sound of the hard drive appears and a sound of the DVD-ROM appears.
3. Then silence and everything turns off including the blue led
4. After 2-3 seconds it starts up again automatically.
5. Blue led appears, sound of the DVD-ROM and maybe HDD appears, nothing else.
6. Then everything stops and only the blue led remains on.
7. No reaction to anything on keyboard, black screen, nothing ...
Only hard reset (power button pressed for 2 seconds) works. After this I start the laptop again. It starts without filesystem problems.
What is important, the file /var/log/pm-suspend.log in this bad scenario stops at the string
... Performing suspend
That's it! There is NO even the usual string
No kernel-oops report is generated (it is enabled, of course).
Version-Release number of selected component (if applicable):
I have kernel 126.96.36.199-64.fc11.x86_64
So far any time I have either
1. I press 'specebar' or 'power' to resume and the system resumes fine
2. I press ANYTHING else and have the described above mess.
Steps to Reproduce:
1. suspend by any means
2. resume by pressing NOT 'spacebar' nor 'power'
Mess as described. Unusable device.
Resume works fine on the same machine running WinXP SP3 32 bit. Any key on the keyboard can wake-up the machine normally. Touchpad does not work for wakeup neither in WinXP, nor in Linux. All the tests were performed MANY times (dozens, more than 30) in different desktop configuration and the statistics is good. Most of the tests were performed with AC power (had no time to work out the battery statistics).
Hibernate with AC power worked few times fine (no problem statistics).
Tried once to press 'ctrl+alt+f2' to go to the shell prompt and suspend after logging there as root. In that case the resume started normally, the screen restored to the shell, then it switched to the GNOME login prompt and the system stopped again. BUT is had the GNOME login prompt on the screen. Again only the hard reset worked and again no kernel-oops.
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