4K ~ 3840x2160 resolution and frame buffer support

4K ~ 3840x2160 resolution and frame buffer support

[James Lehman]

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.


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Re: 4K ~ 3840x2160 resolution and frame buffer support

[Ilia Mirkin]

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@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@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau
_______________________________________________
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Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau

Re: 4K ~ 3840x2160 resolution and frame buffer support

[James Lehman]

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@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@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/nouveau

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Nouveau@lists.freedesktop.org
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Re: 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@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@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@lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/nouveau
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau

Re: 4K ~ 3840x2160 resolution and frame buffer support

[James Lehman]

Oh! Bummer.

Thank you again for getting back to me.

My video card only has one HDMI, one digital video and one analog VGA port.

So I guess I'll have to wait for future nouveau developments.

I don't really need high speed graphics, openGL or 3D.

I'm not a gamer. I just like to write my own code to plot pixels.

Uh..... I hate to ask this of the nouveau development team, but.....

Is there any way to use the nVidia proprietary driver to get a 4K Linux 
Frame Buffer?

Thanks again.

James.


On 10/08/2015 05:22 PM, Ilia Mirkin wrote:
> 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@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@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@lists.freedesktop.org
>>>> http://lists.freedesktop.org/mailman/listinfo/nouveau
>>
>> _______________________________________________
>> Nouveau mailing list
>> Nouveau@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/nouveau

_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
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