> -----Ursprüngliche Nachricht-----
> Von: xorg [mailto:[email protected]] Im Auftrag von [email protected]
> Gesendet: Dienstag, 12. Dezember 2017 23:30
> An: [email protected]
> Betreff: Re: monitor hotplug resolution switch
>
> Le 12/12/2017 à 12:22, Johann Obermayr a écrit :
> > Hello,
> >
> > i have a x86 machine with i915 graphics.
> >
> > With connected display (1920x1080) all is ok.
> >
> > But if I disconnect the monitor, the resolution switch to 320x200.
> >
> > How can I disable this ?
> >
> > I will always have the same resolution (1920x1080)
> >
> > How can I do this ?
> >
> some more info is certainly necessary
>
> what OS?
> what remaining monitor?
>
> what do xrandr say?
>
> thanks
> jdd
>
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Hello,
yes, sorry.
X86 dualcore Intel(R) Celeron(R) CPU G1820 @ 2.70GHz
With On board graphics i915
Older Yocto build with Kernel 3.10.0
X.Org X Server 1.14.0
Release Date: 2013-03-05
[1274713.521] X Protocol Version 11, Revision 0
[1274713.521] Build Operating System: Linux 3.2.0-126-generic-pae i686
[1274713.521] Current Operating System: Linux sigmatek-x86-mp 3.10.0 #48 SMP
PREEMPT Wed Dec 6 18:30:54 CET 2017 i686
[1274713.521] Current version of pixman: 0.29.2
[1274713.521] (II) Module ABI versions:
[1274713.521] X.Org ANSI C Emulation: 0.4
[1274713.521] X.Org Video Driver: 14.1
[1274713.521] X.Org XInput driver : 19.1
[1274713.521] X.Org Server Extension : 7.0
And using xf86-video-intel-2.21.3.tar.bz2
xorg.conf
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
EndSection
Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection
Section "Screen"
Identifier "Screen0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
EndSection
Yes we use 16 bit color depth.
root@sigmatek-x86-mp:~# xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
VGA1 disconnected
DP1 disconnected
HDMI1 disconnected
DP2 disconnected
HDMI2 disconnected
DP3 connected
1920x1080 60.0 +
HDMI3 disconnected
But after disconnect the monitor, the driver will change resolution to 320x200.
But we will, that driver does not change the resolution. Or we can define the
default resolution.
Thanks
Johann
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