ubuntu15.04自定义分辨率 xrandr failed
新安装ubuntu15.04 ubuntu-gnome-15.04-desktop-amd64
按照网上ubuntu 自定义分辨率的教程
用 xrandr --newmode "1440x900_60.00" 106.50 1440 ..... 这一句执行后出现:
xrandr:Failed to get size of gamma for output default
X Error of failed request: BadName(named color or font does not exist)
Major opcode of failed request: 140(RANDR)
Minor opcode of failed request: 16(RRCreateMode)
Serial number of failed request:19
Current serial number in output stream: 19
然后在网上也没找到怎么解决, 请问这个要怎么弄?