Created attachment 109061 [details] /var/log/messages with kernel 3.11.1, suspend function stopped to work. screen is closing (become black) but cpu continue to run.
Created attachment 109071 [details] dmesg
i don't have this issue with kernel 3.10.10
Please try the following command under root privilege. "echo mem > /sys/power/state"
i get /bin/echo: write error: device or resource busy i saw a blackscreen... cpu continue to run when i do dmesg return [ 2.662669] [drm] Initialized nouveau 1.1.1 20120801 for 0000:01:00.0 on minor 0 [ 7.353746] nouveau E[ PFIFO][0000:01:00.0] playlist update failed [ 275.211972] nouveau [ DRM] suspending fbcon... [ 275.211977] nouveau [ DRM] suspending display... [ 275.211981] nouveau [ DRM] unpinning framebuffer(s)... [ 275.212030] nouveau [ DRM] evicting buffers... [ 290.455725] nouveau [ DRM] waiting for kernel channels to go idle... [ 305.472005] nouveau E[ DRM] failed to idle channel 0xcccc0001 [DRM] [ 305.472037] pci_pm_suspend(): nouveau_pmops_suspend+0x0/0x70 [nouveau] returns -16 a saw annother message when i boot nouveau E[PBUS] [0000:01:00.0] MMIO write of 0x000040 fault nouveau E[PBUS] [0000:01:00.0] MMIO write of 0x000000 fault
nouveau E[PBUS] [0000:01:00.0] MMIO write of 0x000401 fault not nouveau E[PBUS] [0000:01:00.0] MMIO write of 0x000000 fault so surely a nouveau driver problem
Yes, I think so too and so reassign the bug to correct category.
i have an optimus sytem s2ram -f KMS graphics driver is in use, skipping quirks. s2ram_do: Device or resource busy