Framebuffer - Revision history

JulienB: /* Login/Console */

2023-01-18T11:16:57Z

‎Login/Console

JulienB: /* Tips */

2023-01-18T11:15:26Z

‎Tips

JulienB: /* Links */

2017-04-20T10:47:10Z

‎Links

SebastienSz: /* Other usefull ESC sequences */ add tip to erase the screen

2016-01-21T09:00:01Z

‎Other usefull ESC sequences: add tip to erase the screen

JulienB: FrameBuffer moved to Framebuffer

2014-07-21T08:23:31Z

FrameBuffer moved to Framebuffer

JulienB: /* Kernel configuration */

2013-07-12T19:54:23Z

‎Kernel configuration

JulienB: Instructions moved to Talk:

2013-01-23T13:56:01Z

Instructions moved to Talk:

JulienB at 12:45, 23 January 2013

2013-01-23T12:45:57Z

JulienB: /* Tips */

2013-01-23T12:41:08Z

‎Tips

JulienB: /* Kernel configuration */

2012-08-06T10:31:24Z

‎Kernel configuration

@@ Line 56: / Line 56: @@
 <pre class="apf">
   # echo 1 > /sys/class/graphics/fbcon/cursor_blink
 </pre>

@@ Line 44: / Line 44: @@
 ==Tips==
 * To stop blinking cursor:
 <pre class="apf">
@@ Line 56: / Line 57: @@
   # echo 1 > /sys/class/graphics/fbcon/cursor_blink
 </pre>
 * To grab a screenshot of a running Framebuffer application, use [[FBGrab]]
 * To enter in Framebuffer sleep mode:
 <pre class="apf">

@@ Line 102: / Line 102: @@
 =Links=
 * [[Linux_Boot_Logo|How to change the Linux boot logo]]
 * [http://lxr.linux.no/linux/Documentation/VGA-softcursor.txt How to configure soft cursor]
 * http://linux-fbdev.sourceforge.net/

@@ Line 94: / Line 94: @@
 <pre class="apf">
   # echo -e '\033[?5l' > /dev/tty1
 </pre>

@@ Line 6: / Line 6: @@
 ==Kernel configuration==
-{{Note | Framebuffer is already configured (for [[LQ043_Adapt|Sharp LQ043 LCD]] on [[APF9328]] and for Chimei LW700 on [[APF27]]/[[APF51]]) in standard/default Armadeus kernel image. [[APF28]] has a boot option to choose the LCD.}}
+{{Note | Framebuffer is already configured (for [[LQ043_Adapt|Sharp LQ043 LCD]] on [[APF9328]] and for Chimei LW700 on [[APF27]]/[[APF51]]) in standard/default Armadeus kernel image. [[APF28]] has a boot option to [[APF28Dev#Selecting_LCD|choose the LCD]].}}
 Instructions to configure Linux kernel were moved to [[Talk:FrameBuffer]] and are only given as references or if you want to change the default LCD.

← Older revision	Revision as of 08:23, 21 July 2014
(No difference)

@@ Line 6: / Line 6: @@
 ==Kernel configuration==
-{{Note | Framebuffer is already configured (for [[LQ043_Adapt|Sharp LQ043 LCD]] on [[APF9328]] and for Chimei LW700 on [[APF27]]/[[APF51]]) in standard/default Armadeus kernel image.}}
+{{Note | Framebuffer is already configured (for [[LQ043_Adapt|Sharp LQ043 LCD]] on [[APF9328]] and for Chimei LW700 on [[APF27]]/[[APF51]]) in standard/default Armadeus kernel image. [[APF28]] has a boot option to choose the LCD.}}
-Following instructions are only given as references or if you want to change the default LCD:
-* launch Linux kernel configuration:
+Instructions to configure Linux kernel were moved to [[Talk:FrameBuffer]] and are only given as references or if you want to change the default LCD.
-<pre class="host">
- [armadeus]$ make linux-menuconfig
-</pre>
-* activates:
-<pre class="config">
- Device Drivers
-    ---> Character devices  --->
-        [*] Virtual terminal
-        [*]   Support for console on virtual terminal
-</pre>
-* '''on APF9328''' activates:
-<pre class="config">
- Device Drivers
-    ---> Graphics support
-        <*> Support for frame buffer devices  --->
-             <*>   Motorola i.MX LCD support
-</pre>
-* '''on APF27''' activates:
-<pre class="config">
- Device Drivers
-    ---> Graphics support
-        <*> MXC Framebuffer support (Freescale driver)
-</pre>
-* and choose your LCD in:
-<pre class="config">
- Device Drivers
-    ---> Graphics support
-        ---> LCD Panel (xxxx)  --->
-</pre>
-* activates:
-<pre class="config">
- Device Drivers
-    ---> Graphics support
-        ---> Console display driver support
-            <*> Framebuffer Console support
-</pre>
-* deactivates VGA stuff & add some fonts, then choose Armadeus boot logo:
-<pre class="config">
- Device Drivers  --->
-    Graphics support  --->
-        [*] Bootup logo
-        [*]   224-color Armadeus Linux logo
-</pre>
-* recompiles the kernel:
-<pre class="host">
- [armadeus]$ make linux26
-</pre>
-* reflash kernel image on your board and enjoy ! (you should see Linux logo on screen at startup)
 ==Userland==

@@ Line 3: / Line 3: @@
 ==Introduction==
 Linux Framebuffer is the lowest level (standardized) API for userspace programs to access video capabilities of the system you're running on. It allows you to directly "draw" your graphics in the video memory.
-Some higher level librairies can be put on top of the Framebuffer for more portability: SDL, Qt, GTK, etc...
+Some higher level librairies can be put on top of the Framebuffer for more portability: [[SDL]], [[Qt/Embedded]], GTK, DirectFB, etc...
 ==Kernel configuration==

@@ Line 95: / Line 95: @@
 <pre class="apf">
   # echo 0 > /sys/class/graphics/fbcon/cursor_blink
 </pre>
 * To make it blinking again: