Distribution: Fedora Core 1/2/3 Hardware Environment: HP Pavillion ZE-4201 Software Environment: See: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=122604 Problem Description: See: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=122604 Steps to reproduce: echo mem > /sys/power/state Notebook suspends to memory. On power up, the LEDs lit up, fans and disk start spinning, but otherwise the notebook is dead. Screen is completely blank. Latest version of the vanilla kernel (apart from Red Hat supplied Fedora kernels mentioned in the original bug report) that I confirmed this behaviour with is 2.6.9-rc4.
Is the problem still there with latest 2.6 kernel? If yes, can you make sure whether the problem is only with restore of the video (try connecting through network or serial after resume). If it is only the video problem, - Please try the options in Documentation/power/video.txt - Try the workaround in bug #3670
Yes, the bug is still there in 2.6.9. Can't connect to the machine via the network (can't even ping it). I'll try the serial option, but I'm not holding my breath. The machine does appear completely dead apart form LEDs and HDD spinning.
How about unload the sound card driver and USb driver? After that, can you connect the machine via network?
Here is the latest: vanilla kernel 2.6.10, compiled with default .config file from Fedora Core 3 kernel-2.6.9-1.681_FC3. I booted the box in single user mode (by appending s to the kernel line in grub.conf). After that, I ran: echo mem > /sys/power/state The box went to sleep. Pushed the power on button, the box started the fan, disk, LEDs turned on, but no video. Waited a few seconds, then ran (without seeing the output on the screen, of course): touch beenhere shutdown -h now The box shut down. After the next boot, I could seed the file /beenhere. Sooo, the thing actually does suspend to memory now from single user mode, but the video doesn't come back. OK, next test from run level 5. Logged on to X, started xterm, ran: echo mem > /sys/power/state The box suspended. When I turned it back on, blank video, keyboard not responsive (e.g. Caps Lock doesn't turn the LED on). No go.
What is the video card on this system. ATI Radeon? Intel Graphics? lspci output should be helpful.
You can find full lspci output in the original Red Hat bug report. Anyhow, it an ATI Technologies Inc Radeon IGP 340M. Basically, a shared memory thingy.
Pretty sure this is a video related thing (something along the lines of X needing to soft boot the card after resume). Anyhow, suspend2 works just fine for me, so I'll defer this.