[Bug 106760] New: Support WDDM 1.3 and embedded display in qxl-wddm-dod for an Optimus Windows guest hybrid setup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106760

            Bug ID: 106760
           Summary: Support WDDM 1.3 and embedded display in qxl-wddm-dod
                    for an Optimus Windows guest hybrid setup
           Product: Spice
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: win32 qxl xddm
          Assignee: spice-bugs at lists.freedesktop.org
          Reporter: oblitz at protonmail.com

There have been progress to get an Nvidia dGPU to work in a Windows guest in an
Optimus setup for the past year. A hacky OVMF patch [1] has allowed the dGPU to
initialize properly, bypassing the error 43, and allowed certain applications
to make use of the dGPU at a near-native performance.

However, the number of applications that are clever enough to make use of the
dGPU seem rare. A reason for this could be due to a lack of proper hybrid setup
where an integrated/embedded display panel is not detected.

A potential solution to this could be to modify the qxl-wddm-dod driver to WDDM
1.3 and expose the emulated display as an embedded display. [2,3,4]

[1] https://github.com/jscinoz/optimus-vfio-docs/issues/2
[2]
https://github.com/jscinoz/optimus-vfio-docs/issues/2#issuecomment-390550145
[3] https://www.redhat.com/archives/vfio-users/2018-April/msg00019.html
[4]
https://reddit.com/r/VFIO/comments/8gv60l/current_state_of_optimus_muxless_laptop_gpu/

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/spice-bugs/attachments/20180531/8f0a119d/attachment.html>