I confirm this behavior on my t510 4313 with nVidia nvs3100m discrete graphics. However, my second resume shows the Lenovo BIOS splash indefinitely.
I filed a similar bug last month: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/519375 , post 11 has logs from similar methodology. I will test again with the latest Ubuntu and mainline kernels.
I confirm this behavior on my t510 4313 with nVidia nvs3100m discrete graphics.
However, my second resume shows the Lenovo BIOS splash indefinitely.
I filed a similar bug last month: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/519375 , post 11 has logs from similar methodology. I will test again with the latest Ubuntu and mainline kernels.