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docs: improve hdmi and rotation

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This commit is contained in:
alfrix 2024-03-09 16:03:16 -03:00
parent ed017c4b3c
commit 53b9277b6c
2 changed files with 31 additions and 9 deletions
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20
docs/Hardware/HDMI.md
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@ -21,12 +21,20 @@ more complex example:
video=HDMI-A-1:1920x1080M@60,rotate=90,reflect_x
```
| Device | Display |
|-------------|-------------------------------------------------|
| HDMI-A-1 | HDMI 1 (sometimes HDMI 0 on PCB) |
| HDMI-A-2 | HDMI 2 (sometimes HDMI 1 on PCB if starts at 0) |
| DSI-1 | DSI or DPI |
| Composite-1 | Composite |
???+ "Find the identifier use xrandr"
on a terminal run:
```sh
DISPLAY=:0 xrandr
```
it will output something like:
```
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 8192 x 8192
HDMI-1 connected primary 1024x600+0+0 (normal left inverted right x axis y axis) 800mm x 450mm
```
in this case the identifier is HDMI-1 and a simple cmdline arg would be something like:
`video=HDMI-1:1024x600@60`
Valid mode specifiers:

20
docs/Troubleshooting/Rotation.md
View File

@ -10,17 +10,29 @@ here are some examples:
???+ example "Universal xorg configuration"
Find the identifier use xrandr
```sh
DISPLAY=:0 xrandr
```
it will output something like:
```
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 8192 x 8192
HDMI-1 connected primary 1024x600+0+0 (normal left inverted right x axis y axis) 800mm x 450mm
```
Take not that the screen is `HDMI-1` (it could be `HDMI-A-1` or many other names)
Create /usr/share/X11/xorg.conf.d/90-monitor.conf
```bash
sudo nano /usr/share/X11/xorg.conf.d/90-monitor.conf
```
Paste this section modifying the options to suit your needs:
```kconfig
Section "Monitor"
Identifier "HDMI-A-1"
Identifier "HDMI-1"
# This identifier would be the same as the name of the connector printed by xrandr
# DISPLAY=:0 xrandr
# for example "DVI-I-1 connected primary" means that the identifier is "DVI-I-1"
# another example "Unknown19-1 connected primary" some GPIO screens identify as Unknown19
@ -37,6 +49,8 @@ here are some examples:
sudo service KlipperScreen restart
```
you may have to adjust the [touch rotation](../Touch_issues/#touch-rotation-and-matrix)
??? example "Using Waveshare screen that is installed with LCD-show"
```bash