QVGA Mode

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(SHR)
Line 13: Line 13:
 
echo "qvga" > /sys/bus/spi/devices/spi2.0/resolution
 
echo "qvga" > /sys/bus/spi/devices/spi2.0/resolution
 
xrandr -s 240x320
 
xrandr -s 240x320
fbset 240x320           
 
 
killall -HUP enlightenment
 
killall -HUP enlightenment
 
</pre>
 
</pre>
Line 23: Line 22:
 
xrandr -s 480x640
 
xrandr -s 480x640
 
killall -HUP enlightenment
 
killall -HUP enlightenment
</pre>
 
 
and add to /etc/fb.modes
 
<pre>
 
mode "240x320"
 
      geometry 240 420 240 320 16
 
      timings 100000 8 88 2 2 8 2
 
      accel false
 
endmode
 
 
</pre>
 
</pre>
  

Revision as of 17:15, 20 July 2011

Information on getting into QVGA mode successfully

SHR

On SHR-unstable (as of the july 2011 (openembedded)builds) the following worked.

Create two new scripts - I put these in /usr/local/bin, and added /usr/local/bin to my PATH in my .profile file - but you can put 'em where ever you like, as long as they are on your PATH, or you use the full path to invoke 'em.

qvga:

#!/bin/sh
echo "qvga" > /sys/bus/spi/devices/spi2.0/resolution
xrandr -s 240x320
killall -HUP enlightenment

normal:

#!/bin/sh
echo "vga" > /sys/bus/spi/devices/spi2.0/resolution
xrandr -s 480x640
killall -HUP enlightenment

This usually creates a usable display - although occasionally enlightnment get confused and crashes.

Unfortunately there's a problem with the touchscreen, so the upper quarter of the screen maps to the entire screen, so using this for anything real isn't possible. Apparently this is fixed in the Xorg based X server, which should be available soon, so hopefully this will be resolved soon.

Also - changing /sys/.../state should not be required once the switch to Xorg is complete.

Personal tools

Information on getting into QVGA mode successfully

SHR

On SHR-unstable (as of the july 2011 (openembedded)builds) the following worked.

Create two new scripts - I put these in /usr/local/bin, and added /usr/local/bin to my PATH in my .profile file - but you can put 'em where ever you like, as long as they are on your PATH, or you use the full path to invoke 'em.

qvga:

#!/bin/sh
echo "qvga" > /sys/bus/spi/devices/spi2.0/resolution
xrandr -s 240x320
killall -HUP enlightenment

normal:

#!/bin/sh
echo "vga" > /sys/bus/spi/devices/spi2.0/resolution
xrandr -s 480x640
killall -HUP enlightenment

This usually creates a usable display - although occasionally enlightnment get confused and crashes.

Unfortunately there's a problem with the touchscreen, so the upper quarter of the screen maps to the entire screen, so using this for anything real isn't possible. Apparently this is fixed in the Xorg based X server, which should be available soon, so hopefully this will be resolved soon.

Also - changing /sys/.../state should not be required once the switch to Xorg is complete.