While following the "New machine: Contents of display are offset around
2 inches from the left hand side." thread, I thought I would try
get-edid myself. Unfortunately, I get
This is read-edid version 3.0.2. Prepare for some fun.
Attempting to use i2c interface
Looks like no busses have an EDID. Sorry!
Attempting to use the classical VBE interface
mmap /dev/zero: Operation not permitted
error initialising realmode interface
do you have full superuser (root) permissions?
I'm sorry nothing was successful. Maybe try some other arguments
if you played with them, or send an email to Matthew Kern
<pyrophobic...@gmail.com>.
Partial Read... Try again
Lots of searching led me to try
$sudo mount -o remount,exec /dev
which seemed to work, maybe. Now I get
This is read-edid version 3.0.2. Prepare for some fun.
Attempting to use i2c interface
Looks like no busses have an EDID. Sorry!
Attempting to use the classical VBE interface
Performing real mode VBE call
Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
Function unsupported
Call failed
VBE version 0
VBE string at 0x0 "O�"
VBE/DDC service about to be called
Report DDC capabilities
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
Function unsupported
Call failed
Reading next EDID block
VBE/DDC service about to be called
Read EDID
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
Function unsupported
Call failed
The EDID data should not be trusted as the VBE call failed
Error: output block unchanged
I'm sorry nothing was successful. Maybe try some other arguments
if you played with them, or send an email to Matthew Kern
<pyrophobic...@gmail.com>.
Partial Read... Try again
However, xrandr works fine, showing me
DisplayPort-0 connected primary 2560x1440+0+0 (normal left inverted
right x axis y axis) 597mm x 336mm
2560x1440 74.60*+ 59.95
....
HDMI-A-0 connected 2560x1440+2560+0 (normal left inverted right x axis
y axis) 597mm x 336mm
2560x1440 74.60*+ 59.95
....
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
(where the .... are 18 other modelines.)
My monitors work fine, but I'm curious why get-edid is failing.
My mobo is
MSI B50 Tomahawk
and my GPU is
VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Cape Verde XT [Radeon HD 7770/8760 / R7 250X].
Any thoughyts or suggestions?
Thanks.
Jack
