Displaying 5 results from an estimated 5 matches for "acpi_osi_dmi_table".
2019 Nov 21
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...parent root port is in D3hot
(as it is the case here). Also then the GPU config space is not
accessible.
I took a look at the HP Omen ACPI tables which has similar problem and
there is also check for Windows 7 (but not Linux) so I think one
alternative workaround would be to add these devices into
acpi_osi_dmi_table[] where .callback is set to dmi_disable_osi_win8 (or
pass 'acpi_osi="!Windows 2012"' in the kernel command line).
2019 Nov 21
0
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...port be in D3hot at that point? Wouldn't that be
a suspend ordering violation?
> I took a look at the HP Omen ACPI tables which has similar problem and
> there is also check for Windows 7 (but not Linux) so I think one
> alternative workaround would be to add these devices into
> acpi_osi_dmi_table[] where .callback is set to dmi_disable_osi_win8 (or
> pass 'acpi_osi="!Windows 2012"' in the kernel command line).
I'd like to understand the facts that have been established so far
before deciding what to do about them. :-)
2019 Nov 21
0
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...y difference
in power savings in my testing.
> > > I took a look at the HP Omen ACPI tables which has similar problem and
> > > there is also check for Windows 7 (but not Linux) so I think one
> > > alternative workaround would be to add these devices into
> > > acpi_osi_dmi_table[] where .callback is set to dmi_disable_osi_win8 (or
> > > pass 'acpi_osi="!Windows 2012"' in the kernel command line).
> >
> > I'd like to understand the facts that have been established so far
> > before deciding what to do about them. :-)
>
>...
2019 Nov 21
5
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...tached to the root port) resulting
the topology entering D3cold.
> > I took a look at the HP Omen ACPI tables which has similar problem and
> > there is also check for Windows 7 (but not Linux) so I think one
> > alternative workaround would be to add these devices into
> > acpi_osi_dmi_table[] where .callback is set to dmi_disable_osi_win8 (or
> > pass 'acpi_osi="!Windows 2012"' in the kernel command line).
>
> I'd like to understand the facts that have been established so far
> before deciding what to do about them. :-)
Yes, I agree :)
2019 Nov 20
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Wed, Nov 20, 2019 at 10:37 PM Rafael J. Wysocki <rafael at kernel.org> wrote:
>
> On Wed, Nov 20, 2019 at 4:53 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Wed, Nov 20, 2019 at 04:37:14PM +0100, Karol Herbst wrote:
> > > On Wed, Nov 20, 2019 at 4:15 PM Mika Westerberg
> > > <mika.westerberg at intel.com> wrote: