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Hi fork,
background: W520, two ssd (one bay replacing optical), 16G + 4G = 20G, VT enabled, +nox2apic, no de, xmonad/laptop-mode/smapi/thinckpad_acpi
Shortly, it often fails to resume from sleep, flashing lights and stuck in infinite loop.
(like this one: http://www.youtube.com/watch?v=48Mi4tqUaZc)
- don't get any suspicious hash of device drivers with pm_trace enabled kernel (suspend works fine always)
- 8/10 happens when I put it into sleeve (interesting)
- testing with graphic cards:
discrete, integrated: nvidia/intel/nouveou are same
bumblee+nouveou/nvidia: less likely happens (1/10), but happens
* bumblee works out of box, but I'd like to use single X:0, instead of separete X:8.
* xrandr doesn't support multiple gpu to bind single X:0
* xinerama work! but not support on-the-fly detection, which is not an option.
I am comfortable with dealing with kernel sources, or doing some reverse-engineering, but I can't find more clues to make it work .. is there anybody uses W520?
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One might be interested in bumblebee experiments:
- bumblebee/nouveau performs 1/3 fps compared to bumblebee/nvidia
- bumblebee/nvidia gives >1h extra battery life
- integrated (i915) only option gives ~10h battery life
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