not working without timing
max_framebuffer_height=2560
hdmi_group=1
hdmi_mode=90
#hdmi_timings=720 0 8 128 64 2560 0 1 3 24 0 0 0 67 0 42009500 8
#display_rotate=2 #1: 90; 2: 180; 3: 270
You could try replacing “hdmi_group” and “hdmi_mode” settings with
hdmi_cvt=2560 720 60
hdmi_group=2
hdmi_mode=87
Maybe also check using
hdmi_cvt=720 2560 60
P.S. Where are the values for “hdmi_timings” from?
At least a picture, albeit a little stretched.
Do you still use “framebuffer_height” and/or “framebuffer_width” settings?
no entries in the userconfig
Does it help to add
max_framebuffer_width=2560
max_framebuffer_height=720
framebuffer_width=2560
framebuffer_height=720
back to “/boot/userconfig.txt”?
I’ll try that later, thanks
This is the result after the entry
I also added:
disable_overscan=1
max_framebuffer_width=2560
max_framebuffer_height=1080
framebuffer_width=2560
framebuffer_height=1080
The effect of the different settings regarding “max_framebuffer_height” and “framebuffer_height” is hard to judge because all three pictures (including the one from post #19) show different display content. Is there an effect at all and if so what appears to be the best result so far?
BTW: Did you already try the suggestions from post #18?
yes, sorry, the image content should always be the same.
This is the best result in terms of aspect ratio, but not filling
Aspect ratio looks good, IMHO. Which settings are used to achieve this result?
hdmi_cvt=2560 720 60
hdmi_group=2
hdmi_mode=87
Did you test combining this with the framebuffer height and width settings?
Thanks, perfect. 
I hadn’t tested that yet.
Thanks for your patience and help!! 
Now I just need a suitable skin for peppymeter
Would you mind posting your final display settings as a reference for future readers?
of course!
https://de.aliexpress.com/i/1005005826118725.html?gatewayAdapt=glo2deu
Resolution: 2560x720
Size outside: 366 × 115 × 11 mm (h×v×d)
Display area: 354.82 × 99,97 mm (h × v)
Connected via: HDMI
Touch: YES / USB-C
Power: USB-C 5V
Port: 1x HDMI mini, 2x USB-C
userconfig.txt:
#userconfig.txt:
# Touch Display 14.5 Zoll 2560x720
hdmi_cvt=2560 720 60
hdmi_group=2
hdmi_mode=87
max_framebuffer_width=2560
max_framebuffer_height=720
framebuffer_width=2560
framebuffer_height=720
2 Likes
Looks very nice!
Did you collect and write down all settings you did in the last years?
Might be an idea to collect them in a single topic.
Working LCD screens
Brand: Waveshare
Link: https://www.waveshare.com/7.9inch-hdmi-lcd.htm
Resolution: 400×1280
Size: 69.80x207.78 mm
Connected via: HDMI
Touch: YES
userconfig.txt:
hdmi_group=2
hdmi_mode=87
hdmi_timings=400 0 100 10 140 1280 10 20 20 2 0 0 0 60 0 43000000 3
display_rotate=3
hdmi_blanking=1
Remark:
No, not in particular for brand and model. Depending on the display in question I use only the more or less generalized instructions which I am posting from time to time.