I’m using Arch Linux with 3.11.6-1 and nvidia 325.15-10 on Gigabyte u2442 with GeForce GT 640M.
After recent update discrete graphics only works once right after reboot, then kernel log shows:
Nov 12 13:21:51 nostromo kernel: pci 0000:01:00.0: Refused to change power state, currently in D0
Nov 12 13:21:51 nostromo bumblebeed[371]: [ 27.227075] [ERROR][XORG] (EE) Server terminated successfully (0). Closing log file.
Nov 12 13:21:51 nostromo kernel: pci 0000:01:00.0: power state changed by ACPI to D3cold
Nov 12 13:22:22 nostromo kernel: bbswitch: enabling discrete graphics
Nov 12 13:22:23 nostromo kernel: pci 0000:01:00.0: power state changed by ACPI to D0
Nov 12 13:22:23 nostromo kernel: vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=none,decodes=none:owns=none
Nov 12 13:22:23 nostromo kernel: [drm] Initialized nvidia-drm 0.0.0 20130102 for 0000:01:00.0 on minor 1
Nov 12 13:22:23 nostromo kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel Module 325.15 Wed Jul 31 18:50:56 PDT 2013
Nov 12 13:22:23 nostromo slim[381]: removing GPU device /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card1 /dev/dri/card1
Nov 12 13:22:23 nostromo slim[381]: xf86: found device 1
Nov 12 13:22:23 nostromo kernel: nvidia 0000:01:00.0: irq 50 for MSI/MSI-X
Nov 12 13:22:28 nostromo kernel: NVRM: GPU at 0000:01:00.0 has fallen off the bus.
Nov 12 13:22:28 nostromo kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20130517/nsarguments-95)
/var/log/Xorg.8.log:
[ 59.618] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 59.618] (**) NVIDIA(0): Option "NoLogo" "true"
[ 59.618] (**) NVIDIA(0): Option "ProbeAllGpus" "false"
[ 59.618] (**) NVIDIA(0): Option "UseEDID" "false"
[ 59.619] (**) NVIDIA(0): Option "UseDisplayDevice" "none"
[ 59.619] (**) NVIDIA(0): Enabling 2D acceleration
[ 59.619] (**) NVIDIA(0): Ignoring EDIDs
[ 59.619] (**) NVIDIA(0): Option "UseDisplayDevice" set to "none"; enabling NoScanout
[ 59.619] (**) NVIDIA(0): mode
[ 64.452] (EE) NVIDIA(0): Failed to initialize the NVIDIA GPU at PCI:1:0:0. Please
[ 64.452] (EE) NVIDIA(0): check your system's kernel log for additional error
[ 64.452] (EE) NVIDIA(0): messages and refer to Chapter 8: Common Problems in the
[ 64.452] (EE) NVIDIA(0): README for additional information.
[ 64.452] (EE) NVIDIA(0): Failed to initialize the NVIDIA graphics device!
[ 64.452] (EE) NVIDIA(0): Failing initialization of X screen 0
[ 64.452] (II) UnloadModule: "nvidia"
[ 64.452] (II) UnloadSubModule: "shadow"
[ 64.452] (II) UnloadSubModule: "wfb"
[ 64.452] (II) UnloadSubModule: "fb"
[ 64.452] (EE) Screen(s) found, but none have a usable configuration.
[ 64.452] (EE)
Fatal server error:
[ 64.452] (EE) no screens found(EE)
[ 64.452] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 64.452] (EE) Please also check the log file at “/var/log/Xorg.8.log” for additional information.
[ 64.452] (EE)
[ 64.452] (EE) Server terminated with error (1). Closing log file.
nvidia-bugreport archive attached
nvidia-bug-report.log.gz (54.3 KB)