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[Bug 567296] Re: The right resolution for my screen is not detected

 

I don't really understand from the file what lines are for what monitor, but my laptop screen (LVDS1) has a resolution of 1280x800 when I don't use my external (VGA1) monitor. When I plug in my VGA monitor Kubuntu picks a resolution of 1024x768 on both screens. The resolutions I can pick from in "Screen Settings" are listen from line 268 onwards: 
(II) intel(0): Printing probed modes for output VGA1
(II) intel(0): Modeline "1360x768"x59.8   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync (47.7 kHz)
(II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
(II) intel(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
(II) intel(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz)
(II) intel(0): Modeline "848x480"x60.0   33.75  848 864 976 1088  480 486 494 517 +hsync +vsync (31.0 kHz)
(II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 489 492 525 -hsync -vsync (31.5 kHz)
(II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)

To get the proper resolution I run 
xrandr --newmode "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync
xrandr --addmode VGA1 "1680x1050_60.00"
xrandr --output VGA1 --mode "1680x1050_60.00"

I got the new mode by running 
josef@juni:~$ cvt 1680 1050
# 1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz
Modeline "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync

-- 
The right resolution for my screen is not detected
https://bugs.launchpad.net/bugs/567296
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