[Quantal] Include support for Haswell hardware
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
| Quantal |
Fix Released
|
Medium
|
Leann Ogasawara | ||
| mesa (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
| Quantal |
Fix Released
|
Undecided
|
Unassigned | ||
| xserver-xorg-video-intel (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
| Quantal |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
== Quantal SRU Justification ==
Beginning with the 12.04.2 point release, we are providing the 12.10 kernel as an enablement vehicle. Enablement for Haswell graphics has been a frequent request and highly sought after for the 12.04.2 point release coupled with the 12.10 kernel and X stack. Full enablement support for Haswell will unfortunately not be available by default until the upstream v3.8 kernel. Given our release time frames, waiting for the v3.8 kernel to land in an official Ubuntu release and propagate back into 12.04 will greatly delay our ability to support Haswell in the near future. As an alternative solution, I'm am proposing we provide an updated i915 driver in Quantal with Haswell support.
== Fix ==
We can provide an updated snapshot of the i915 driver which supports Haswell and is currently making it's way through the drm-intel tree and targeted to land in the upstream v3.8. This updated version of the i915 driver being proposed here for the Quantal kernel will only support Haswell pci id's which should greatly reduce the risk of regression to non-Haswell hardware. The following set of patches introduces this updated i915 driver as an Ubuntu driver (ie ubuntu-
The updated i915 snapshot was taken from "git://
git:/
I would note I did have to backport some patches which touch outside the ubuntu/i915 space. However, I hope most are straightforward enough to see they pose no risk of regression (ie they only introduce new #define's or functions which are only used by this newer driver). I would also note I did need to also cherry-pick some drm/fb-helper patches which were listed in the backport-3.6 branch from Intel in order to resolve some VGA issues I was seeing while testing. I hope those are also straightforward when reviewing.
== Testing ==
I've tested this on a Beta Shark Bay Desktop SDP replicating the same package combination we'll see with the 12.04.2 point release, ie Precise + Quantal X stack + Quantal test kernel. I see significant improvements compared to a stock Quantal kernel. With a stock Quantal kernel, the system is unusable and the monitor powers off 3secs into booting anyways. With the proposed set of patches I'm able to successfully boot and connect a monitor over HDMI and VGA. I also did some general smoke testing of suspend/resume, audio, ethernet, wifi, reboot/shutdown, 3D, and monitor hotplugging all of which passed with the exception of suspend/resume failures over VGA which I'm told is a known issue that is being addressed. I have also tested this on all my non-Haswell hardware I have and can confirm I see no regressions.
CVE References
| Changed in linux (Ubuntu Quantal): | |
| assignee: | nobody → Leann Ogasawara (leannogasawara) |
| importance: | Undecided → Medium |
| status: | New → In Progress |
| Changed in linux (Ubuntu): | |
| status: | New → Invalid |
| description: | updated |
| Changed in linux (Ubuntu Quantal): | |
| status: | In Progress → Fix Committed |
| Luis Henriques (henrix) wrote | #1 |
| tags: | added: verification-needed-quantal |
| tags: |
added: verification-done-quantal removed: verification-needed-quantal |
| Harm van Bakel (hvbakel) wrote | #2 |
| Leann Ogasawara (leannogasawara) wrote | #3 |
| Adam Conrad (adconrad) wrote Update Released | #4 |
| Launchpad Janitor (janitor) wrote | #5 |
| Changed in linux (Ubuntu Quantal): | |
| status: | Fix Committed → Fix Released |
| Robert Hooker (sarvatt) wrote | #6 |
| Changed in mesa (Ubuntu): | |
| status: | New → Fix Released |
| Changed in mesa (Ubuntu Quantal): | |
| status: | New → Fix Released |
| Changed in xserver-xorg-video-intel (Ubuntu): | |
| status: | New → Fix Released |
| Changed in xserver-xorg-video-intel (Ubuntu Quantal): | |
| status: | New → Fix Released |
This bug is awaiting verification that the kernel for Quantal in -proposed solves the problem (3.5.0-20.31). Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-
If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/