I will divide this into two sections, suspend and hibernation, for better understanding.
Suspend: After reading the triage and debugging guide, I noticed this advice: "The usual problem occurs when resuming, and normally the culprit is a device driver that does not recover from a powered down state." So I had and idea: deactivate the module for WiFi (rtl8187), because it is kinda buggy (ndiswrapper used to work better.), and... voilĂ ! Suspending works! I've resumed and suspended several times and Ubuntu did it gracefully. Just to make sure, I re-inserted the rtl8187 module and... suspend didn't work anymore. Could somebody else with this laptop confirm if it is related to the rtl8187 module? One interesting note to add: the laptop does not suspend if the lid is closed. Ubuntu takes me back to the unlock prompt. When the lid is open, it works perfectly. Solution: close the lid only after the laptop is fully suspended. Following the debug instructions didn't help much. The "rebooting with no_console_suspend" thing just gave me a black screen with the blinking cursor on top left of the screen (no flashing keyboard LEDs), and the "sync; echo 1 > /sys/power/pm_trace; pm-suspend" gave me the same result, although I've grabbed a dmesg after rebooting. (attached dmesg-output.txt) [ 5.108036] Magic number: 1:908:515 Dunno what this line means, but the guide recommended to find it. Note: Suspend once worked well in Ubuntu 8.04 LTS, maybe because it didn't detect my wireless card, so the rtl8187 module was never loaded. Temporary solution: blacklist the rtl8187 module. I do not use wireless often, and when I need it, I use a (eek!) virtual machine with Windows. Hibernation: It is not working regardless of the rtl8187 module. So, for the test, I've left it enabled. 1. pm-hibernate with no_console_suspend kernel option. Didn't hibernate, as usual. No output on the console. Was able to switch tty (CTRL+ALT+F1....F5) but no keyboard input was accepted. Tried CTRL+ALT+F7 to switch to X, and the system stopped working. 2. Per-subsystem hibernation testing The computer locked when I issued the command "echo disk > /sys/power/state". Was able to switch tty (CTRL+ALT+F1....F5) but no keyboard input was accepted. Tried CTRL+ALT+F7 to switch to X, and the system stopped working, just like test #1. Note: hibernation worked well in Ubuntu 8.04 LTS. ** Attachment added: "dmesg-output.txt" http://launchpadlibrarian.net/24388699/dmesg-output.txt -- [TOSHIBA Satellite A215] suspend/resume failure when testing Suspend in Jaunty Alpha 6 on laptop https://bugs.launchpad.net/bugs/342656 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs