I am using linux mint debian on my thankpad t400 notebook. The default resolution is 1440 * 900. I want to add a new resolution mode 1600 * 900 but failed.
xrandr display:
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Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1600 x 1600
LVDS connected 1440x900+0+0 (normal left inverted right x axis y axis) 304mm x 190mm
1440x900 60.2*+ 50.0
1280x800 60.0 + 50.0
1152x864 60.0 + 50.0
1280x768 59.9 + 50.0
1280x720 60.0 + 50.0
1024x768 60.0 + 50.0
1024x600 60.4 + 50.0
800x600 60.3 + 50.0
800x480 60.0 + 50.0
720x480 60.0 + 50.0
640x480 60.0 + 50.0
DFP1 disconnected (normal left inverted right x axis y axis)
CRT1 disconnected (normal left inverted right x axis y axis)
1600x900_60.00 (0xdb) 118.2MHz
h: width 1600 start 1696 end 1856 total 2112 skew 0 clock 56.0KHz
v: height 900 start 903 end 908 total 934 clock 59.9Hz
When I enter "xrandr --addmode LVDS 1600x900_60.00" It will display:
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X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 157 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 27
Current serial number in output stream: 28
glxinfo | grep "OpenGL" displays
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OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Mobility Radeon HD 3400 Series
OpenGL version string: 3.3.11672 Compatibility Profile Context
OpenGL shading language version string: 3.30
OpenGL extensions:
Does anyone know how to solve this problem? Thanks.
