4.6 DRM/i915 update CFT (Sandy Bridge?)/IvyBridge/Haswell/Broadwell/SkyLake/KabyLake supported

Sun May 22 19:27:00 UTC 2016

Hi,

I tested the image disk_16052200.img.xz on my ThinPad Yoga 12 (Broadwell)
It panics when I try 'startx' or 'kldload i915kms'

Attached core.txt.0

Thanks for working on this!

Jakob

On Sun, May 22, 2016 09:20, Matthew Macy wrote:
>

> I'm happy to announce a call for testers for the 4.6 update of drm and
> i915. The driver has been successfully tested on IvyBridge, Haswell,
> Broadwell and Skylake. At least basic HW 3D acceleration should work,
> VGA and DP out are known to work. Video decode has only been tried
> once and that did not work.
>
> At this point I'm most interested in taking an inventory of what is
> broken where. My priorities are common sense:
>
> a) stability b) fixing 2D artifacts c) fixing 3D problems d) video
decode d)
> output support e) other features
>
> At this time "prime" (needed for switching between GPUs, compute
> APIs, and DRI3) is not yet supported. All the pieces are in place but
> support existing functionality is a higher priority. Userptr (mapping user
> memory in to the driver) requires VM changes. Support is planned, but
> likely post-11.
>
>
> A few caveats are in order:
> - The only reported test on Sandy Bridge indicated severe artifacts.
> - Arrandale (pre-Sandy Bridge) and earlier are not yet supported by
>   this update. The intel_i810 code has been heavily localized for
>   FreeBSD making it more difficult to integrate. Thus there are
>   holes in the gmch support.
> - This update is 64-bit only. There is no good reason to be running
>   in 32-bit mode on any of the hardware supported by this driver.
> - Although it works fine for me on my Skylake the one other tester
>   I have reports from indicates that the driver isn't actually
>   attaching and creating aliases for the drm device nodes.
>
>
> Please send issue/success reports to the freebsd-x11 mailing list.
> I may be preoccupied with work matters for periods of time. Sending
> it to the list makes sure that the messages don't get lost.
>
>
> If you encounter problems with startx, please try loading the i915
> kmod in isolation and make sure that it switches correctly to vt_fb. If
> you're not running efifb you'll notice a change in resolution. If it works
> but is slow or has artifacts you may try switching to UXA by removing
>  /etc/X11/xorg.conf.d/20-intel.conf (if you're using
> the USB image). If you've built from source, try configuring SNA instead.
> SNA is much better behaved for me.
>
>
> The usual rules apply for kernel debugging. There should be copious
> information on that in the handbook and elsewhere. If that proves to be
> problematic for people I will send out a follow up mail.
>
> A couple observations:
>
>
> - The FreeBSD PTB insist that a debugger be in tree but that it
>   pre-date GPL2, consequently kernels are, by default compiled with
>   DWARF2 which is very poor at retain debug information in the
>   presence of any optimization. If this is a problem, either
>   recompile everything with -O0 (add CFLAGS += -O0 in drm2 and
>   i915kms Makefiles, and pass COPTFLAGS=-O0 to buildkernel) or
>   install a newer kgdb from ports.
>
>
> - The purpose of encrypted swap is that the data on disk be
>   unrecoverable. This is somewhat at cross purposes with savecore.
>   So don't do that.
>
>
>
> Now that this is out I will be switching gears to bringing up amdgpu
> and radeon support. I have no hardware that uses the radeon driver so I
> will have to rely on Jean for testing and support there.
>
>
> Those of you wishing to try your hand at testing from source can
> fetch our repo from github at:
>
>
> https://github.com/iotamudelta/freebsd-base-graphics
>
>
> Make sure to check out the drm-next-4.6 branch.
>
>
>
> If you'd rather just try it on a usb pen driver you can also
> obtain a prebuilt memstick image with this branch installed along with xorg
> and some commonly used ports at:
>
> http://www.bsddesktop.com/images/disk_YYMMDDHH.img.xz
>
>
> There is no root password and the user/pw is joeuser/joeuser.
>
>
>
> If you're curious about what's on it, the script used to
> create the image is here:
>
> http://www.bsddesktop.com/images/usbcreate.sh
>
>
>
> If you'd like to help out with collecting data on what
> laptops are supported please run Warren Block's notebookstats script:
>
> http://www.bsddesktop.com/images/notebookstats
>
>
> It's also installed under /usr/local/bin on the image.
>
>
> If I've missed anything please let me know and I will follow up.
>
>
> -M
>
>
>
> _______________________________________________
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