Ubuntu
xserver-xorg-video-nouveau package

  1. Bug #700646
  2. Comment #3

Comment 3 for bug 700646

Revision history for this message
Michał Lech (akseiya) wrote :

[ 11.442992] VGA switcheroo: detected DSM switching method \_SB_.PCI0.P0P2.PEGP handle
[ 11.443025] nouveau 0000:02:00.0: power state changed by ACPI to D0
[ 11.443036] nouveau 0000:02:00.0: power state changed by ACPI to D0
[ 11.443042] nouveau 0000:02:00.0: enabling device (0106 -> 0107)
[ 11.443050] nouveau 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 11.443057] nouveau 0000:02:00.0: setting latency timer to 64
[ 11.445975] [drm] nouveau 0000:02:00.0: Unsupported chipset 0x0c1880a1
[ 11.446092] nouveau 0000:02:00.0: PCI INT A disabled
[ 11.446099] nouveau: probe of 0000:02:00.0 failed with error -22
[ 11.467238] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 11.467244] i915 0000:00:02.0: setting latency timer to 64
[ 11.494808] mtrr: no more MTRRs available
[ 11.494812] [drm] MTRR allocation failed. Graphics performance may suffer.
[ 11.494816] [drm] detected 63M stolen memory, trimming to 32M

This is from Dell XPS 15 L501X. All new XPS machines with Optimus and geForce chips would share this issue.