Joly
November 7, 2024, 9:18pm
1
Creating a bug report/issue
I have searched the existing open and closed issues
YES
Required Information
DietPi version | cat /boot/dietpi/.version
G_DIETPI_VERSION_CORE=9
G_DIETPI_VERSION_SUB=8
G_DIETPI_VERSION_RC=0
G_GITBRANCH=‘master’
G_GITOWNER=‘MichaIng’
Distro version | echo $G_DISTRO_NAME $G_RASPBIAN
bookworm 0
Kernel version | uname --all
Linux DietPi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux
Architecture | dpkg --print-architecture
arm64
SBC model | echo $G_HW_MODEL_NAME
or (EG: RPi3)
RPi 4 Model B (aarch64)
Power supply used | (EG: 5V 1A RAVpower)
Raspberry Pi USB-C Power Supply (EU) - Black (5.1V 3A - 15.3W)
SD card used | (EG: SanDisk ultra)
Sandisk Ultra 16GB
Additional Information (if applicable)
Software title | (EG: Nextcloud)
Was the software title installed freshly or updated/migrated?
Can this issue be replicated on a fresh installation of DietPi?
← If you sent a “dietpi-bugreport”, please paste the ID here →
Bug report ID | echo $G_HW_UUID
Steps to reproduce
According to the vendors info (https://www.waveshare.com/wiki/7.9inch_Touch_Monitor ), I should be able to rotate the screen and set the resolution to 1280 x 400 adding the following in config.txt:
hdmi_group=2
hdmi_mode=87
hdmi_timings=400 0 220 32 110 1280 0 10 10 10 0 0 0 60 0 59510000 0
display_rotate=1
Expected behaviour
Screen should be rotated 90° with a resolution of 1280 wide and 400 high
Actual behaviour
Nothing happens. Screens remains vertical.
Extra details
Jappe
November 8, 2024, 8:45am
2
Did you reboot the system?
Joly
November 8, 2024, 11:56am
3
Hi,
Yes, I rebooted several times…
Even with different settings…
Unfortunately no single pixel changed…
It remains vertical
I’m getting desperate
Jappe
November 8, 2024, 3:12pm
4
Hm we had a similiar issue a year ago, without a solution
https://dietpi.com/forum/t/waveshare-7-9inch-dsi-lcd-touch-screen-cannot-display-landscape-please-help/18282/7
Also in their docs they say, they only support Pi OS / Ubuntu / Kali and Retropie, but no plain Debian. Maybe you can ask Waveshare support for help.
On 64bit, DietPi and RPiOS should be nearly same.
@Joly if you have spare SD card, could you test using plain RPiOS?
Joly
November 8, 2024, 7:39pm
6
Hi,
Yes, I saw that topic too, but I understood that screen was a DSI-version, no?
I got this reply from Waveshare:
You can refer to this link: 有道云笔记
I have to admit that I’m not yet very confident with Raspberry.
So, I find cmdline.txt in /boot . I suppose that’s the file they refering to, no?
If someone understands could guide me what I have to do exactly… would be very nice!
I hoped this was a lot easier…
Joly
November 8, 2024, 7:41pm
7
Hi,
I’ll try.
FYI… I just want to use LMS and Squeezelite as audiostreamer with a nice display
Joly
November 10, 2024, 12:51pm
8
Hi,
I tested the screen using RPiOS.
The screen works fine via de GUI. Although there are some little strange behaviours in the screen- and appearance configuration tool. But it works.
I succeeded to install LMS. Not yet SqueezeLite. I also use the DACPi from Geekworm…
Meaning,I also have to figure out how to install/configure the audio followed by SqueezeLite…
Anyway, on DietPi, it’s just rotating the screen. If I succeed, all my problems are solved.
Should I put something in dietpi.txt ?
I guess this needs to be done on config.txt
Joly
November 10, 2024, 1:28pm
10
That’s what I also thought.
But I find different posibilities, like :
#Rotation
#display_hdmi_rotate=0
#lcd_rotate=0
But also :
display_rotate=1
I understood the value should be 1, but the screen remains vertical…
If you are in the mood, you can compare the two config.txt
files between DietPi and RPiOS.
Joly
November 10, 2024, 8:18pm
12
That’s what I was thinking to do…
But there is nearly nothing in config.txt of RPiOS…
but at least something that can be shared.
Totof
November 11, 2024, 6:19am
14
Hello
Hope it helps
To rotate the 7"9 screen, type in the terminal
sudo nano /etc/X11/xorg.conf.d/99-rotate_screen.conf
paste lines below and reboot
“Monitor” section
Identify “Monitor0”
“Rotate” option “left”
EndSection
“Screen” section
Identify “Screen0”
Device “Card0”
Monitor “Monitor0”
EndSection
Not sure if this helps but there is a similar question on rotating the screen for Chromium kiosk mode Configure screen resolution/orientation in Kiosk mode. · Issue #7263 · MichaIng/DietPi · GitHub
Joly
November 11, 2024, 6:46pm
16
Hi,
I made some progress…
On the commandline, I have to type the following:
export DISPLAY=:0
xrandr --output HDMI-2 --rotate left
Now, I should find a way to activate this automaticaly at boot or startup…
Next step is to correct the touchscreen, because this is not yet rotated…
Joly
November 11, 2024, 7:23pm
17
And I also succeed to rotate the touch input as follow:
Rotary Touch Input
Execution instructions: sudo nano /etc/udev/rules.d/99-waveshare-touch.rules
In the window that opens, add the code as needed:
90 degrees:
ENV{ID_INPUT_TOUCHSCREEN}=="1", ENV{LIBINPUT_CALIBRATION_MATRIX}="0 -1 1 1 0 0"
180 degrees:
ENV{ID_INPUT_TOUCHSCREEN}=="1", ENV{LIBINPUT_CALIBRATION_MATRIX}="-1 0 1 0 -1 1"
270 degrees:
ENV{ID_INPUT_TOUCHSCREEN}=="1", ENV{LIBINPUT_CALIBRATION_MATRIX}="0 1 0 -1 0 1"
After reboot, touch and screen rotate.
1 Like