[9fans] Raspberry pi with a largish screen?

[9fans] Raspberry pi with a largish screen?

[a]

Is anyone running a Raspberry pi with a largish
display? I've not been able to get anything over
1920x1080 working. If you are, I'd love to see
your config.txt and hear about anything you
had to do beyond flashing the "normal" image.

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[9fans] Re: Raspberry pi with a largish screen?

[taylor.garry]

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This is my whole config.txt:

[pi4]
kernel=9pi4
arm_64bit=1
[pi3]
kernel=9pi3
arm_64bit=1
[all]
gpu_mem=16
core_freq=250
enable_uart=1
boot_delay=1


hdmi_group=2
hdmi_mode=87
hdmi_cvt=2560 1440 60 3 0 0 1
max_framebuffer_width=2560
max_framebuffer_height=1440
hdmi_pixel_freq_limit=250000000

It gives me a 2560x1440 screen with no black borders. That's on a Raspberry Pi 4.

That is  with 9Front.

Hope that helps.

Garry

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[9fans] Re: Raspberry pi with a largish screen?

[a]

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Thanks, that’s promising. What’s your monitor?
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Re: [9fans] Re: Raspberry pi with a largish screen?

[hiro]

4k@59hz works here.
but only if i disable bluetooth.

On Wed, May 8, 2024 at 9:56 PM <a@9srv.net> wrote:
>
> Thanks, that’s promising. What’s your monitor?
> 9fans / 9fans / see discussions + participants + delivery options Permalink

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Re: [9fans] Re: Raspberry pi with a largish screen?

[Garry Taylor]

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I'm using a Lenovo C32Q-20 with that config.txt and it works perfectly.

On Thu, May 9, 2024 at 5:55 AM <a@9srv.net> wrote:

> Thanks, that’s promising. What’s your monitor?
> *9fans <https://9fans.topicbox.com/latest>* / 9fans / see discussions
> <https://9fans.topicbox.com/groups/9fans> + participants
> <https://9fans.topicbox.com/groups/9fans/members> + delivery options
> <https://9fans.topicbox.com/groups/9fans/subscription> Permalink
> <https://9fans.topicbox.com/groups/9fans/Tcb982002ae12827e-Md8ee947e62368b9743804cd2>
>

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Re: [9fans] Re: Raspberry pi with a largish screen?

[a]

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Thank you, this exact set of lines ends up being exactly right for driving my LG 27UK850-W at 1/4 resolution (native resolution would need some work put into the window system and fonts to be more comfortable). I don't believe I'd tried the max_framebuffer_* or hdmi_pixel_freq_limit settings before.
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