Rock/display - Revision history

Hipboi at 05:22, 6 January 2015

2015-01-06T05:22:32Z

Jack: /* Set full color depth */

2014-12-20T03:59:54Z

‎Set full color depth

Hipboi: /* Set display scale */

2014-08-06T12:30:55Z

‎Set display scale

Hipboi: /* Set display scale */

2014-08-06T12:30:10Z

‎Set display scale

Hipboi: /* Set display scale */

2014-08-06T12:25:44Z

‎Set display scale

Hipboi: /* Set HDMI output mode */

2014-08-06T12:19:07Z

‎Set HDMI output mode

Julien: /* Set display scale */

2014-07-28T09:14:16Z

‎Set display scale

Julien: /* Set framebuffer resolution */

2014-07-26T15:32:52Z

‎Set framebuffer resolution

Julien: /* Set display scale */

2014-07-26T15:16:40Z

‎Set display scale

Julien: /* display */ Set full color depth

2014-04-08T15:04:10Z

‎display: Set full color depth

← Older revision		Revision as of 05:22, 6 January 2015
Line 1:		Line 1:
		+	{{rock_header}}
	{{Languages\|rock/display}}		{{Languages\|rock/display}}

@@ Line 82: / Line 82: @@
   task
   script
       [ -x /bin/fbset ] && /bin/fbset -a -nonstd 1 -depth 32 -rgba "8/0,8/8,8/16,8/24"
   end script
   eof

@@ Line 12: / Line 12: @@
      root@radxa:# export SCALE=/sys/class/graphics/fb0/scale
-     For the new Ubuntu 14.04 image, the path is changed to /sys/class/display/HDMI/scale, run
+     #For the new Ubuntu 14.04 image, the path is changed to /sys/class/display/HDMI/scale, run
      root@radxa:# export SCALE=/sys/class/display/HDMI/scale
      root@radxa:# cat $SCALE

@@ Line 10: / Line 10: @@
 === Set display scale ===
-     root@radxa:# cat /sys/class/graphics/fb0/scale
+     root@radxa:# export SCALE=/sys/class/graphics/fb0/scale
      xscale=95 yscale=95
-     root@radxa:# echo 100 > /sys/class/graphics/fb0/scale
+     root@radxa:# echo 100 > $SCALE
-     root@radxa:# cat /sys/class/graphics/fb0/scale
+     root@radxa:# cat $SCALE
      xscale=100 yscale=100
 You can also set different scales for X and Y:
-     root@radxa:# echo xscale=80 > /sys/class/graphics/fb0/scale
+     root@radxa:# echo xscale=80 > $SCALE
-     root@radxa:# echo yscale=100 > /sys/class/graphics/fb0/scale
+     root@radxa:# echo yscale=100 > $SCALE
-     root@radxa:# cat /sys/class/graphics/fb0/scale
+     root@radxa:# cat $SCALE
      xscale=80 yscale=100

@@ Line 9: / Line 9: @@
 === Set display scale ===
-−
      root@radxa:# cat /sys/class/graphics/fb0/scale
      xscale=95 yscale=95

@@ Line 25: / Line 25: @@
 === Set HDMI output mode ===
 you can see supported output modes by the following commands:
      root@radxa:# cat /sys/class/display/display0.HDMI/modes
 x1080p-60
 x1080p-50
@@ Line 34: / Line 36: @@
 check out the current display mode
      root@radxa:# cat /sys/class/display/display0.HDMI/mode
 x720p-60
 It's 720p@60hz
@@ Line 39: / Line 43: @@
 change the mode to 1080p@60hz
      root@radxa:# echo 1920x1080p-60 > /sys/class/display/display0.HDMI/mode
 === Set font size of X and console ===

← Older revision		Revision as of 15:32, 26 July 2014
Line 90:		Line 90:

	To make this change permanent, timing is critical during bootup. fbset will need to be called before X / lightdm starts. In Linaro/Ubuntu an upstart script is needed - '''fbset.conf''' - see above. The condition "startup and started udev" will try to run fbset as early as possible. On my rk3188 this works reliably, but if you have issues, your best bet is to tinker with these "start on" conditions. Do not use '''/etc/rc.local''' for this - this script is run long ''after'' lightdm has been started by upstart.		To make this change permanent, timing is critical during bootup. fbset will need to be called before X / lightdm starts. In Linaro/Ubuntu an upstart script is needed - '''fbset.conf''' - see above. The condition "startup and started udev" will try to run fbset as early as possible. On my rk3188 this works reliably, but if you have issues, your best bet is to tinker with these "start on" conditions. Do not use '''/etc/rc.local''' for this - this script is run long ''after'' lightdm has been started by upstart.
		+
		+	=== Set framebuffer resolution ===
		+
		+	Set framebuffer resolution to 720 x 480 pixels
		+	service lightdm stop
		+	fbset -a -xres 720 -yres 480 -vxres 720 -vyres 480
		+	service lightdm start
		+
		+	If you get a blank screen, try to reactivate the display
		+	echo 1 > /sys/class/graphics/fb0/enable
		+
		+	A few examples of other framebuffer resolution settings: 720x576, 1024x600, 1280x720, 1920x1080
		+	fbset -a -xres 720 -yres 576 -vxres 720 -vyres 576
		+	fbset -a -xres 1024 -yres 600 -vxres 1024 -vyres 600
		+	fbset -a -xres 1280 -yres 720 -vxres 1280 -vyres 720
		+	fbset -a -xres 1920 -yres 1080 -vxres 1920 -vyres 1080

@@ Line 12: / Line 12: @@
      root@radxa:# cat /sys/devices/platform/rk-fb/graphics/fb0/scale
      xscale=95 yscale=95
-     root@radxa:# echo xscale=100 >  /sys/devices/platform/rk-fb/graphics/fb0/scale
+     root@radxa:# echo 100 >  /sys/devices/platform/rk-fb/graphics/fb0/scale
-    root@radxa:# echo yscale=100 >  /sys/devices/platform/rk-fb/graphics/fb0/scale
      root@radxa:# cat /sys/devices/platform/rk-fb/graphics/fb0/scale
      xscale=100 yscale=100
 === Set HDMI output mode ===

@@ Line 1: / Line 1: @@
 {{Languages|rock/display}}
 The cpu of Radxa Rock - RK3188 has two LCD controllers, LCD0 and LCD1. On RR, LCD1 is connected to HDMI and LCD0 is connect to AV out and the LCD0 signal are also exported on the extension header.
@@ Line 6: / Line 8: @@
-=== set display scale ===
+=== Set display scale ===
      root@radxa:# cat /sys/devices/platform/rk-fb/graphics/fb0/scale
@@ Line 15: / Line 17: @@
      xscale=100 yscale=100
-=== set HDMI output mode ===
+=== Set HDMI output mode ===
 you can see supported output modes by the following commands:
      root@radxa:# cat /sys/class/display/display0.HDMI/modes
@@ Line 51: / Line 53: @@
   root@radxa:~# setupcon
 Find the best solution by repeating the console-setup...