#758990 xorg: probe fails to detect screen size

Package:
xorg
Source:
xorg
Description:
X.Org X Window System
Submitter:
Piviul
Date:
2015-08-09 19:18:04 UTC
Severity:
important
#758990#5
Date:
2014-08-23 15:25:49 UTC
From:
To:
Dear Maintainer,
I use gnome shell in a pc with a 26 inch monitor but the system thinks that my
monitor is 7 inch. The result si that all is displayed very big.

I have tried to change dpi using xorg.conf or using xrandr without any success.

Please, there is a way to have the system configure correctly the monitor?
There is a workaround to set the correct display size or dpi?

Thanks a lot

Piviul
#758990#10
Date:
2014-08-31 09:02:29 UTC
From:
To:
neither and do nothing too setting dpi Option in Device section.

Please there is a workaround to set the correct display size or dpi
using samsung syncmaster T260 monitor?

Thanks a lot

Piviul
#758990#15
Date:
2015-08-08 10:24:13 UTC
From:
To:
Hi Piviul,

Did you find a solution or did anybody reply to you about this bug?

I observe similar problems trying to use a 4K UHD monitor that has 131 x
137 DPI

Regards,

Daniel
#758990#20
Date:
2015-08-09 13:27:42 UTC
From:
To:
 ❦  8 août 2015 12:24 +0200, Daniel Pocock <daniel@pocock.pro> :

X will lie about the screen dimensions. Only xrandr will report the
appropriate dimensions. What does xrandr says?
#758990#25
Date:
2015-08-09 19:14:17 UTC
From:
To:
$ xrandr | grep -w connected
DP-1 connected primary 3840x2160+0+0 (normal left inverted right x
axis y axis) 708mm x 399mm

The dimensions (both pixels and mm) appear correct


$ xrdb -query | grep dpi
Xft.dpi:	96