drivers - Nvidia/Intel Hybrid graphics suspend error - Ask Ubuntu


i'm running ubnutu 16.10 on lenovo z510 gt 740m. using nvidia driver, when try wake suspend screen black , error displayed:

[ 1046.061495] [drm:wait_panel_status [i915]] *error* pps state mismatch [ 1047.081663] [drm:hsw_write_dcomp [i915]] *error* failed write d_comp [ 1047.369023] nvrm: xid (pci:0000:07:00): 70, gpu has fallen off bus. [ 1046.061495] [drm:wait_panel_status [i915]] *error* pps state mismatch [ 1046.061495] [drm:wait_panel_status [i915]] *error* pps state mismatch

when on ubuntu 16.04, same problem occured, screen black, without error.

due acpi bios incompatibilities, z510 needs additional kernel commandline parameter acpi_osi="!windows 2013" suspend/resume work.

see: https://github.com/bumblebee-project/bbswitch/issues/142

the drm:wait_panel_status has been appearing since kernel 4.8 far haven't notice negative effects.


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