[9fans] cmdline.txt for RPi 4 with QHD screen

Hello, Just trying to set up my RPi 4 for Plan 9. It boots into Plan 9 no problem, but at a pretty low resolution with big black borders. I'm using a 2560x1440 screen connected with HDMI, I run it at 60Hz with other OS on the Rpi. Could someone please suggest a cmdline.txt config for it? At the

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Thanks for the quick reply, I put in the hdmi_enable_4k line and no difference. My cmdline.txt is: console=0 user=glenda nobootprompt=local!/dev/sdM0/fs hdmi_group=2 hdmi_mode=82 hdmi_enable_4kp60=1 hdmi_cvt=2560 1440 60 3 0 0 1 max_framebuffer_width=2560 max_framebuffer_height=1440 hdmi_pixel_fr

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Thanks, I managed to corrupt my card, so I'm going to reformat and try it again, I'll post config when (if) I get it to work. -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T42a55b55ffb81417-Mf18d973ed1743a2fce513ed0 Delivery options: ht

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

This gives me a QHD display on my RPi 4, this is the 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=14

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

That's great, now I just need to get wifi to work... I can't get a definitive answer on RPi 4 wifi is even supported. -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T42a55b55ffb81417-M0bb93f82eedab10f21146c19 Delivery options: https://9f

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Hi Brian,  Thanks for your help, does it make a difference that I'm using 9front? I don't even seem to have a /sys/lib/firmware directory, and I'm not sure I have a ether4330.c either.  I'm sure it's obvious, but I'm a newcomer to Plan 9 and I apologise in advance if I'm missing obvious things.

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Please don't apologise Brian, thanks so much for this help. Looking at my ether4330.c, those two entries for revisions 6 and 9 are present, but I did a "walk | grep 43444" over the whole disk and I can't find anything like those blob files anywhere. /lib/firmware is empty too. I think I will lo

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Thanks, I got the Raspbian image and I can see .dtb files there, but can't find a clear explanation of how to get the .bin files out of there. For moment I've just found an Ethernet cable and now at least my Plan 9 machine is on the network. -- 9fans: 9fan

Re: [9fans] cmdline.txt for RPi 4 with QHD screen

Thanks Richard, I will give this a try. -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T42a55b55ffb81417-M2ea35b9ed73c3d678822e320 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription

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

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=25000 It gi

Re: [9fans] 9Front on Intel N100?

Hi, that sounds fine, I won't use wifi anyway. Cheers! Garry -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T25f54f1e44602c84-M4d7faf9863512320ca936b55 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription

[9fans] 9Front on Intel N100?

Hello, I'm considering buying a fanless small N100 mini PC to run Plan 9 (9Front likely), does anybody have experience of this working? I may just take a chance on it anyway, but I'm wondering if anybody has tried it? Cheers Garry -- 9fans: 9fans Permalin