On 4/9/22 4:20 PM, Roger Heflin wrote:
you need to look for the section that says Screen #0/#1 and the next few
lines will the the stuff you care about (size/dpi).
On Sat, Apr 9, 2022 at 11:37 AM home user <mattisonw@xxxxxxxxxxx
<mailto:mattisonw@xxxxxxxxxxx>> wrote:
On 4/9/22 10:00 AM, Roger Heflin wrote:
> Check that both monitors are running the same resolution.
How do I do that?
> Also run "xdpyinfo" (rpm is xdpyinfo if you don't have it
installed, I
> don't know if this tool works on wayland or not) and see if the
listed
> size of the screens and dpi is similar on both monitors. I have
seen
> some devices that the EDID info is wrong and because of that it
> calculates the DPI wrong and adjusts sizes based on that data. MIne
> produces output like this:
>
> Screen #0:
> dimensions: 3840x2160 pixels (1016x571 millimeters)
> resolution: 96x96 dots per inch
>
> Mine is actually 940mm x 530mm so EDID lists my monitor as about 8%
> bigger than it really is
>
> Windows may have a monitor device table that it uses that has
correct
> values in it, or windows 7 may not be playing any DPI scaling games.
Yeow! I get hundreds of line of output! I don't see anything in the
man page for paring this down. How do I pare down the output? The
output looks identical regardless of which monitor I run the command on.
Here we go:
-----
bash.1[~]: xdpyinfo | grep dimensions
dimensions: 4480x1440 pixels (1185x381 millimeters)
bash.2[~]: xdpyinfo | grep resolution
resolution: 96x96 dots per inch
bash.3[~]: xdpyinfo | more
name of display: :1
version number: 11.0
vendor string: The X.Org Foundation
vendor release number: 12014000
X.Org version: 1.20.14
maximum request size: 16777212 bytes
motion buffer size: 256
bitmap unit, bit order, padding: 32, LSBFirst, 32
image byte order: LSBFirst
number of supported pixmap formats: 7
supported pixmap formats:
depth 1, bits_per_pixel 1, scanline_pad 32
depth 4, bits_per_pixel 8, scanline_pad 32
depth 8, bits_per_pixel 8, scanline_pad 32
depth 15, bits_per_pixel 16, scanline_pad 32
depth 16, bits_per_pixel 16, scanline_pad 32
depth 24, bits_per_pixel 32, scanline_pad 32
depth 32, bits_per_pixel 32, scanline_pad 32
keycode range: minimum 8, maximum 255
focus: window 0x360000b, revert to Parent
number of extensions: 30
BIG-REQUESTS
Composite
DAMAGE
DOUBLE-BUFFER
DPMS
DRI2
GLX
Generic Event Extension
MIT-SCREEN-SAVER
MIT-SHM
NV-CONTROL
NV-GLX
Present
RANDR
RECORD
RENDER
SECURITY
SHAPE
SYNC
X-Resource
XC-MISC
XFIXES
XFree86-DGA
XFree86-VidModeExtension
XINERAMA
XINERAMA
XInputExtension
XKEYBOARD
XTEST
XVideo
default screen number: 0
number of screens: 1
screen #0:
dimensions: 4480x1440 pixels (1185x381 millimeters)
resolution: 96x96 dots per inch
depths (7): 24, 1, 4, 8, 15, 16, 32
root window id: 0x296
depth of root window: 24 planes
number of colormaps: minimum 1, maximum 1
default colormap: 0x20
default number of colormap cells: 256
preallocated pixels: black 0, white 16777215
options: backing-store WHEN MAPPED, save-unders NO
largest cursor: 256x256
current input event mask: 0xda0033
KeyPressMask KeyReleaseMask EnterWindowMask
LeaveWindowMask StructureNotifyMask
SubstructureNotifyMask
SubstructureRedirectMask PropertyChangeMask
ColormapChangeMask
number of visuals: 228
default visual id: 0x21
visual:
visual id: 0x21
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 11 bits
visual:
visual id: 0x22
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 11 bits
[... snip ...]
bash.4[~]:
-----
Any ideas?
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