[Bug 901500] New: GPU offload (dynamic hybrid graphics) support
by Red Hat Bugzilla
Product: Fedora Documentation
https://bugzilla.redhat.com/show_bug.cgi?id=901500
Bug ID: 901500
Summary: GPU offload (dynamic hybrid graphics) support
Product: Fedora Documentation
Version: devel
Component: release-notes
Severity: medium
Priority: unspecified
Reporter: TomasM(a)tomasm.tk
Created attachment 682312
--> https://bugzilla.redhat.com/attachment.cgi?id=682312&action=edit
sample glxinfo output (with DRI_PRIME set and unset)
Fedora 18 supports GPU offloading for many systems with dynamic switchable
graphics support (AMD PowerXPress, NVIDIA Optimus or similar). Setting
DRI_PRIME=1 will render applications with the discrete graphics card on
supported hardware.
Is this something that should be in the release notes?
- AFAIK Fedora 18 is the first distro released with dynamic gpu offload support
- this is a big deal for most laptops with two graphics cards, as the more
powerful card is just a power drain for most Linux users at the moment.
- As per IRC discussion with randomuser, I haven't found upstream docs on how
to actually enable this functionality and think it would be useful to document
somewhere.
I can pull snippets from kernel, Xorg, libXrandr and mesa changelogs to confirm
all of this, but am hopeful a graphics dev (this is largely David Airlie's
work) can verify this instead. Dave has come across a laptop model which
doesn't work with the release-day code; I'm not sure if his warrants some
ambiguity or a technical disclaimer for 'supported hardware'.
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11 years, 2 months