drm-next-kmod + Broadwell = console 0.2 Hz refresh

[Jakob Alvermark]

On 12/01/17 13:31, Greg V via freebsd-x11 wrote:
> On 12/01/2017 15:26, Jakob Alvermark wrote:
>> On 11/27/17 15:37, Jakob Alvermark wrote:
>>> Hi,
>>>
>>>
>>> I have been using drm-next-kmod for a while now, and it works fine, 
>>> except for this little annoying thing.
>>>
>>> On this Lenovo ThinkPad Yoga 12 (i7-5500U) I have 
>>> kld_list="/boot/modules/i915kms.ko" in /etc/rc.conf
>>>
>>> Shortly after the module is loaded, the console (vt) refreshes only 
>>> about every 5 seconds or so.
>>>
>>> This only happens on the builtin laptop screen, when I have an 
>>> external monitor connected the external monitor is working normally. 
>>> (Display is output to both, and the internal screen still has the 
>>> slow refresh)
>>>
>>> Starting X and switching back to vt or quitting X and it is working 
>>> normally.
>>>
>>> Another thing that might be related; switching windows in X with 
>>> alt-tab (xfce) is also slow (on the order of 5 seconds).
>> Tested this with scfb, and alt-tabbing is quick.
> Hi.
>
> Can you test alt+tabbing with modesetting/glamor?
> I'm not sure what Xorg picks up by default, but probably the intel DDX 
> which kinda sucks.
>
> xorg.conf:
>
> Section "Device"
>     Option "AccelMethod" "glamor"
>     Option "DRI" "3"
>     Identifier "Card0"
>     Driver "modesetting"
>     BusID "PCI:0:2:0" # might be different
> EndSection

Yes, that made a world of difference!
Thanks!

The console problem still remains...

Jakob