Waveshare AMOLED

(4 intermediate revisions by the same user not shown)

Line 17:

</pre>

When using the [[Potato|Libre Potato]], the <tt>meson_dw_hdmi</tt> module must be blacklisted, or you'll get a black screen. This can probably be worked around, but I don't yet know how.

When using the [[Potato|Libre Potato]], the <tt>meson_dw_hdmi</tt> module must be blacklisted, or you'll get a black screen. This can probably be worked around, but I don't yet know how. Using the "fbdev" driver, you'll need a <tt>Rotate</tt> directive in <tt>xorg.conf</tt> to rotate the AML-S905X-CC Meson's Mali GPU (<tt>xrandr</tt> is not supported).

==Console rotation==

Write 1 to <tt>/sys/class/graphics/fbcon/rotate</tt>. To do it from the kernel, add <tt>fbcon=rotate:1</tt> to the kernel command line; in Raspbian, this is done by editing <tt>/boot/cmdline.txt</tt>. This has no effect on Xorg.

Write 1 to <tt>/sys/class/graphics/fbcon/rotate</tt>. To do it from the kernel, add <tt>fbcon=rotate:1</tt> to the kernel command line; in Raspbian, this is done by editing <tt>/boot/firmware/cmdline.txt</tt>. This has no effect on Xorg.

==Touch rotation==

We can do it through Xorg: add the appropriate <tt>CalibrationMatrix</tt> to the <tt>touchscreen</tt> libevent stanza. For instance, rotate 90 degrees clockwise with <tt>Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"</tt>. But this will only work for X.

If we want to handle all libinput consumers (particularly [[Wayland]]), it's better to make a [[udev]] rule that sets <tt>

ENV{LIBINPUT_CALIBRATION_MATRIX}="0 1 0 -1 0 1</tt>. You can test this by checking <tt>libinput list-devices | grep ^Calibration:</tt>.

==Assembling front pane==

Line 36:

Line 42:

* LED long leg to 330Ω resistor

* Resistor to GPIO pin 12

==Setup for [[Counterforce]]==

* We want automatic login to X. Potato uses [http://www.lxde.org/ LXDE] by default.

** <tt>$HOME/.config/lxsession/LXDE/autostart</tt> of the logged in user defines the Xsession.

** Be sure to launch <tt>xscreensaver -no-splash</tt> to avoid AMOLED burnin

Waveshare AMOLED: Difference between revisions

Dank (talk | contribs)

@@ Line 17: / Line 17: @@
 </pre>
-When using the [[Potato|Libre Potato]], the <tt>meson_dw_hdmi</tt> module must be blacklisted, or you'll get a black screen. This can probably be worked around, but I don't yet know how.
+When using the [[Potato|Libre Potato]], the <tt>meson_dw_hdmi</tt> module must be blacklisted, or you'll get a black screen. This can probably be worked around, but I don't yet know how. Using the "fbdev" driver, you'll need a <tt>Rotate</tt> directive in <tt>xorg.conf</tt> to rotate the AML-S905X-CC Meson's Mali GPU (<tt>xrandr</tt> is not supported).
 ==Console rotation==
-Write 1 to <tt>/sys/class/graphics/fbcon/rotate</tt>. To do it from the kernel, add <tt>fbcon=rotate:1</tt> to the kernel command line; in Raspbian, this is done by editing <tt>/boot/cmdline.txt</tt>. This has no effect on Xorg.
+Write 1 to <tt>/sys/class/graphics/fbcon/rotate</tt>. To do it from the kernel, add <tt>fbcon=rotate:1</tt> to the kernel command line; in Raspbian, this is done by editing <tt>/boot/firmware/cmdline.txt</tt>. This has no effect on Xorg.
+==Touch rotation==
+We can do it through Xorg: add the appropriate <tt>CalibrationMatrix</tt> to the <tt>touchscreen</tt> libevent stanza. For instance, rotate 90 degrees clockwise with <tt>Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"</tt>. But this will only work for X.
+If we want to handle all libinput consumers (particularly [[Wayland]]), it's better to make a [[udev]] rule that sets <tt>
+ENV{LIBINPUT_CALIBRATION_MATRIX}="0 1 0 -1 0 1</tt>. You can test this by checking <tt>libinput list-devices | grep ^Calibration:</tt>.
 ==Assembling front pane==
@@ Line 36: / Line 42: @@
 * LED long leg to 330Ω resistor
 * Resistor to GPIO pin 12
+==Setup for [[Counterforce]]==
+* We want automatic login to X. Potato uses [http://www.lxde.org/ LXDE] by default.
+** <tt>$HOME/.config/lxsession/LXDE/autostart</tt> of the logged in user defines the Xsession.
+** Be sure to launch <tt>xscreensaver -no-splash</tt> to avoid AMOLED burnin