I a a bit confused.
>
> On Mon, 19 Feb 2018 10:23:27 +0100
> "Patrick Dupre" <[email protected]> wrote:
>
>
> > Screen 0: minimum 320 x 200, current 3520 x 1200, maximum 8192 x 8192
> > HDMI-1 connected 1920x1080+1600+0 (normal left inverted right x axis y
> > axis) 609mm x 347mm
> > 1366x768 59.79 +
> > 1920x1080 60.00* 50.00 59.94 30.00 25.00 24.00
> > 29.97 23.98
>
> As Ed already pointed out: the asterisk (*) in the line above means your
> external monitor is set to 1920x1080, while its actual capabilities
> can nicely handle only 1366x768. You can see that in the line before
> with the plus (+) sign in it. That's why - probably - your fonts on this
> monitor don't look as crisp as you want them.
>
> man xrandr ....
>
> > 1920x1080i 60.00 50.00 59.94
> > 1280x720 60.00 50.00 59.94
> > 1024x768 75.03 70.07 60.00
> > 832x624 74.55
> > 800x600 72.19 75.00 60.32
> > 720x576 50.00
> > 720x576i 50.00
> > 720x480 60.00 59.94
> > 720x480i 60.00 59.94
> > 640x480 75.00 72.81 66.67 60.00 59.94
> > 720x400 70.08
> > 1920x1080_60.00 59.96
> > DP-1 connected primary 1600x1200+0+0 (normal left inverted right x axis y
> > axis) 408mm x 306mm
>
> >
> > I run
> > xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083
> > 1088 1120 -hsync +vsync
>
> No. You changed the order of the commands. Quote of the BZ page:
>
> -------------------------------
>
> $ cvt 1360 768
> # 1360x768 59.80 Hz (CVT) hsync: 47.72 kHz; pclk: 84.75 MHz
> Modeline "1360x768_60.00" 84.75 1360 1432 1568 1776 768 771 781 798
> -hsync +vsync
>
> [copy/paste the resulting 'Modeline' from above into the next command:]
>
> $ xrandr --newmode "1360x768_60.00" 84.75 1360 1432 1568 1776 768
> 771 781 798 -hsync +vsync $ xrandr --addmode HDMI-1 1360x768_60.00
> $ xrandr --output HDMI-1 --mode 1360x768_60.00
>
> ----------------------------------
>
> So you run first
>
> $ cvt 1366x768
cvt 1366 768
# 1368x768 59.88 Hz (CVT) hsync: 47.79 kHz; pclk: 85.25 MHz
Modeline "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798 -hsync
+vsync
>
> because this is max what your external monitor can handle, according to
> xrandr ...
>
> then
> copy/paste the resulting 'Modeline' from the first command into the next
> command. See quote above:
>
> $ xrandr --newmode .....
xrandr --newmode "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798
-hsync +vsync
> $ xrandr --addmode .....
xrandr --addmode HDMI-1 1368x768_60.00
> $ xrandr --output HDMI-1 ....
xrandr --output HDMI-1 --mode 1368x768_60.00
Now I am running 1368x768
I do not think that it is what I wanted.
>
> > cvt 1920 1080
> > xrandr --addmode HDMI-1 1920x1080_60.00
> > xrandr --output HDMI-1 --mode 1920x1080_60.00
> >
> > The monitor responds that it switched to 1920 x 1080
>
> Because you told the poor fellow to do exactly that ... :)
>
> >
> >
> > I do not see any improvement.
>
> Still astonished? ... ;)
>
> > DP-1 is the old (but sharp monitor)
> > HDMI-1 is the new (but not sharp monitor)
>
> Good to know ...
>
> Two things you need to know. Read careful:
>
> -- 0:
> You probably have a file like
>
> ~/.config/monitors.xml
>
> in your home dir - or wherever. Find it. Read it: It might be that this
> file keeps setting your monitor(s?) to wrong settings/resolutions,
> if these values in that file do not correspond with the actual
> capabilities of your monitor(s) ...
cat .config/monitors.xml
<monitors version="1">
<configuration>
<clone>no</clone>
<output name="DP-1">
<vendor>SAM</vendor>
<product>SyncMaster</product>
<serial>HVYL606149</serial>
<width>1600</width>
<height>1200</height>
<rate>60</rate>
<x>0</x>
<y>0</y>
<rotation>normal</rotation>
<reflect_x>no</reflect_x>
<reflect_y>no</reflect_y>
<primary>yes</primary>
<presentation>no</presentation>
<underscanning>no</underscanning>
</output>
<output name="HDMI-1">
<vendor>SAM</vendor>
<product>SAMSUNG</product>
<serial>0x00000000</serial>
<width>1920</width>
<height>1080</height>
<rate>59.940200805664062</rate>
<x>1600</x>
<y>0</y>
<rotation>normal</rotation>
<reflect_x>no</reflect_x>
<reflect_y>no</reflect_y>
<primary>no</primary>
<presentation>no</presentation>
<underscanning>no</underscanning>
</output>
</configuration>
</monitors>
> If in doubt: move the file away for a while - don't delete it. Then
> connect the external monitor.
>
> -- 1:
> On many (?) computers there's something like a built-in (?) key combo:
> <WindowsKey - p> - Seems to work both on Linux and Windows.
>
> If you have that on your computer, you might be able to change your
> monitor settings (external, and, IIRC, also the internal ones) with
> that combo: While this can be extremely convenient to attach
> monitors you can end up all monitors turning into black screens. In
> that case: press the combo again. If that does not help anymore I see
> four options to save you:
I can switch to 1024x768 and back to 1366x768
Did I made progresses? I am not sure
Thank.
> -- ssh (good).
> -- sysrq keys (works often).
> -- Off button of your computer (bad).
> -- Throwing both your computer and your monitor against the next
> available walls (Don't do that).
>
> --
> Wolfgang Pfeiffer
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