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.... Signed-off-by: Peter Wu <peter at lekensteyn.nl> --- drivers/gpu/drm/nouveau/nouveau_acpi.c | 33 +++++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index ad273ad..38a6445 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -46,6 +46,7 @@ static struct nouveau_dsm_priv { bool dsm_detected; bool optimus_detected; bool optimus_flags_detected; + bool optimus_skip_dsm; acpi_handle dhandle; acpi_handle rom_handle;...

Hi, Here are two patches to fix an issue reported on kernel bugzilla (infinite loop due to unchecked function) and a more important fix to fix hanging Optimus machines when runtime PM is enabled (with pm/pci patches). See the first version[1] for a background on the fixed problems. This is the second revision of incorporating feedback from Emil Velikov (patch 1), Mika Westerberg (patch 4).