Rob Posted June 24, 2016 at 12:43 PM Share Posted June 24, 2016 at 12:43 PM Im using a 5" HDMI Adafruit screen with the red brick, cant figure how to get it to rotate 90 Degrees. xrandr commands return 'Can't open display' Thanks Rob Quote Link to comment Share on other sites More sharing options...
photron Posted June 27, 2016 at 07:53 AM Share Posted June 27, 2016 at 07:53 AM From where did you ran xrandr? Maybe you need to specify DISPLAY=:0? DISPLAY=:0 xrandr Quote Link to comment Share on other sites More sharing options...
Rob Posted June 27, 2016 at 12:48 PM Author Share Posted June 27, 2016 at 12:48 PM Thanks - that gives some improvement, but now i get: tf@red-brick:~$ DISPLAY=:0 xrandr -q xrandr: Failed to get size of gamma for output default Screen 0: minimum 800 x 480, current 800 x 480, maximum 800 x 480 default connected 800x480+0+0 0mm x 0mm 800x480 66.00* tf@red-brick:~$ DISPLAY=:0 xrandr -o right X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 2 (RRSetScreenConfig) Serial number of failed request: 14 Current serial number in output stream: 14 tf@red-brick:~$ Rob Quote Link to comment Share on other sites More sharing options...
photron Posted June 27, 2016 at 04:55 PM Share Posted June 27, 2016 at 04:55 PM I'm afraid that you're out of luck. From the xrandr output its seems that the RED Brick video driver doesn't support rotation, sorry Quote Link to comment Share on other sites More sharing options...
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