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Troubleshooting • Re: zero w2 xorg w/gpio screen?

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Which GPIO screen are you using? Which linux driver is handling the LCD? Check the LCD related lines config.txt in /boot/firmware.

Which raspbian and linux version are you using?
the screen I am using is the one built into the Retroflag GPi case 2W

I have no idea which driver is handling the LCD, isn't it the framebuffer?

the OS version is the latest official 32 bit trixi/debian image with the desktop from the Rpi~imager

included the config.txt (this is working for console, its the one from the zip I mentioned in my original post)

Code:

# For more options and information see# http://www.raspberrypi.org/documentation/configuration/config-txt.md# Some settings may impact device functionality. See link above for details# uncomment if you get no picture on HDMI for a default "safe" mode#hdmi_safe=1# uncomment this if your display has a black border of unused pixels visible# and your display can output without overscan#disable_overscan=1# uncomment the following to adjust overscan. Use positive numbers if console# goes off screen, and negative if there is too much border#overscan_left=16#overscan_right=16#overscan_top=16#overscan_bottom=16# uncomment to force a console size. By default it will be display's size minus# overscan.#framebuffer_width=1280#framebuffer_height=720# uncomment if hdmi display is not detected and composite is being output#hdmi_force_hotplug=1# uncomment to force a specific HDMI mode (this will force VGA)#hdmi_group=1#hdmi_mode=1# uncomment to force a HDMI mode rather than DVI. This can make audio work in# DMT (computer monitor) modes#hdmi_drive=2# uncomment to increase signal to HDMI, if you have interference, blanking, or# no display#config_hdmi_boost=4# uncomment for composite PAL#sdtv_mode=2#uncomment to overclock the arm. 700 MHz is the default.#arm_freq=800# Uncomment some or all of these to enable the optional hardware interfaces#dtparam=i2c_arm=on#dtparam=i2s=on#dtparam=spi=on# Uncomment this to enable the lirc-rpi module#dtoverlay=lirc-rpi# Additional overlays and parameters are documented /boot/overlays/README# Enable audio (loads snd_bcm2835)dtparam=audio=on#config_hdmi_boost=0# force hdmi while the tv can take time before sending the signal on the hdmi output#hdmi_force_hotplug=1# uncomment for composite PAL#sdtv_mode=2# uncomment for lirc-rpi#dtoverlay=lirc-rpi# if you plug your tv at the same time as your rpi and that the rpi switches from the hdmi or give a low resolution because tv had no enough time to initialize itboot_delay=3# uncomment if you don't want the rainbow at startupdisable_splash=1# default CEC namecec_osd_name=recalbox# Overclockgpu_mem_256=128gpu_mem_512=256gpu_mem_1024=512avoid_safe_mode=1kernel=zImage#dtparam=audio=ondisplay_rotate=0dtoverlay=dpi24overscan_left=0overscan_right=0overscan_top=0overscan_bottom=0framebuffer_width=640framebuffer_height=480#framebuffer_depth=8enable_dpi_lcd=1display_default_lcd=1dpi_group=2dpi_mode=87dpi_output_format=0x00016#hdmi_timings=640 0 41 40 41 480 0 18 9 18 0 0 0 60 0 32000000 1   #80hz 0228 030ehdmi_timings=640 0 20 1 20 480 0 1 1 2 0 0 0 60 0 19200000 1  #59hz#dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2dtoverlay=audremap,pins_18_19,swap_lravoid_safe_mode=1disable_pvt=1disable_audio_dither=1audio_pwm_mode=2#dtoverlay=pwm-audio-pi-zero

Statistics: Posted by iamfox — Thu Jan 22, 2026 6:44 pm



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