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

Tue May 31 20:11:58 UTC 2016

On Tue, May 31, 2016 21:37, Matthew Macy wrote:
>

>
>
> ---- On Tue, 31 May 2016 12:01:47 -0700 Jakob Alvermark
> <jakob at alvermark.net> wrote ----
>
>> Hi again,
>>
>>
>> I noticed there was a new image today, cftdisk_2016052307.img.xz
>> Tried booting it on the Yoga 12. 'kldload i915kms' does not panic now,
>> but something is not right. After the module is loaded, the screen only
>> updates every 5 seconds or so. Makes it very interesting to type.
>>
>>
>> Attached it the dmesg. If you need any more let me know.
>>
>>
>> Also tested this on my Acer Aspire E3-112, Pentium N3540 (Baytrail
>> M/Valleyview). Looks better, console stays fine and responsive after
>> loading the module. The image did not have X on it so I didn't test
>> that.
>>
>> Thanks,
>>
>
> I started the image build before I went to bed. Based on the image size
> something failed during image generation process. I'll put up a working
> one.
>
> However, that wouldn't explain the infrequent updates. Perhaps a merge
> bug - I ended having to update my tree at the last minute. The last time I
> synced the libmd was broken.
>

OK, FYI the previous image (dated 20160523) did the same.

Jakob

>>
>> On Sun, May 22, 2016 20:52, Jakob Alvermark wrote:
>>
>>> 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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>>>>
>>>>
>>>>
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>>
>
>