[Nouveau] 4K ~ 3840x2160 resolution and frame buffer support

[Ilia Mirkin]

HDMI with nouveau is limited to 165mhz unfortunately. This is
incorrect (the hardware can do more), but nevertheless, that's the
present limit. If you can connect the screen over dual-link DVI or DP,
you should be able to get the full resolution.

On Thu, Oct 8, 2015 at 5:18 PM, James Lehman <james at akrobiz.com> wrote:
> Thank you for your quick reply.
>
> I have a Gigabyte GT-730 2GB card hooked directly via a high quality HDMI
> cable to a 65 inch Samsung curved screen LCD 4K monitor.
>
> I'm not sure what I am looking for in dmesg and xorg log.
>
> Please advise.
>
> I have built the 3.19.8 kernel and enabled frame buffer support.
>
> I can see 7 out of the 8 penguins when I boot.
>
> My ultimate goal is to be able to boot to a 3840x2160 32 bit (frame buffer)
> console.
>
> Then go into Xfce, or not, as needed.
>
> I like to write frame buffer apps that run in the console.
>
> Thank you.
>
>
>
> On 10/08/2015 04:44 PM, Ilia Mirkin wrote:
>>
>> If you only get 1920x1080 in X, chances are that nouveau doesn't
>> believe it can do 3840x2160 for one reason or another. There are a
>> number of reasons why this might be the case, please provide dmesg,
>> xorg log, and information on how the monitor is connected (including
>> any A->B type adapters).
>>
>>    -ilia
>>
>> On Thu, Oct 8, 2015 at 4:21 PM, James Lehman <james at akrobiz.com> wrote:
>>>
>>> Hello. I hope this is in the right place.
>>>
>>> I just built a new machine and installed Xubuntu and I'm still figuring
>>> things out.
>>>
>>> I'm interested in working with The Linux Frame Buffer.
>>>
>>> Many years ago, I started a project called ezfb and I would like to
>>> continue
>>> developing it on a machine capable of 4K.
>>>
>>> Is it possible to have a frame buffer that does 3840x2160 ?
>>>
>>> With nouveau installed as my video driver, I can get to a frame buffer
>>> console of 1920x1080, but I am limited to that resolution in Xfce as
>>> well.
>>>
>>> With a proprietary nVidia driver installed I can get to 4K in Xfce, but
>>> my
>>> frame buffer is 640x480, 4 bit color. When I try fbset to change
>>> anything,
>>> it doesn't work.
>>>
>>> I have not even bothered to try my code so see of any of it can actually
>>> work in the frame buffers I get.
>>>
>>> Still scratching my head....
>>>
>>> Thank you for your time.
>>>
>>> James.
>>>
>>>
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/nouveau
>
>
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