Display resolution change in Linux Mint 17

[ivanitsky]

Hello, all.
I have installed Mint 17 Qiana. I have a laptop Dell Inspiron 1501 with Radeon Mobility Express 200M on board. I have no any external display. As I understand this release of Linux Mint not use xorg.conf as previous releases such as Linux Mint 13 Maya.
In the Linux Mint 13 I have been created xorg.conf file which worked well and looked:

Section "Device"
Identifier "Configured Video Device"
Driver "radeon"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
SubSection "Display"
Viewport 1280 800
Depth 24
EndSubSection
EndSection

Please, help me. Now my laptop can boot only in recovery mode.
Sorry for my english.

[cwsnyder]

The basic wiki for the information you need is in https://wiki.ubuntu.com/X/Config/Resolution

For a quick fix, create a file called .xprofile in your /home/{username} folder. Use the cvt command to create a mode line with the proper resolution and refresh rate, such as:

Code: Select all

cvt 1280 800 50
# 1280x800 49.95 Hz (CVT 1.02MA) hsync: 41.26 kHz; pclk: 68.00 MHz
Modeline "1280x800_50.00"   68.00  1280 1336 1464 1648  800 803 809 826 -hsync +vsync

for a 50 Hz refresh rate or

Code: Select all

 cvt 1280 800 60
# 1280x800 59.81 Hz (CVT 1.02MA) hsync: 49.70 kHz; pclk: 83.50 MHz
Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync

for a 60 Hz refresh rate. In your .xprofile text file put your xrandr commands similar to the following example for 50 Hz refresh rate:

Code: Select all

xrandr --newmode 1280x800  68.00  1280 1336 1464 1648  800 803 809 826 -hsync +vsync
xrandr --addmode VGA-1 1280x800
xrandr --output VGA-1 --mode 1280x800

Replace VGA-1 with the proper designation for your display (for example: LVDS-1 or DVI-0 or whatever) from the 'connected' display listed when you enter xrandr on a line by itself in a terminal, as shown in my example below:

Code: Select all

xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 4096 x 4096
VGA-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 1600mm x 900mm
   1920x1080      60.0*+
   1680x1050      60.0  
   1280x1024      60.0  
   1440x900       59.9  
   1360x768       60.0  
   1024x768       75.1     70.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1