nothing. always the same output . another issue is that the brigthness og LG Plasma ist increasing and decreasing every 20 Seconds . No matter what does it mean .
ddccontrol version 0.4.2
Copyright 2004-2005 Oleg I. Vdovikin (oleg@cs.msu.su)
Copyright 2004-2006 Nicolas Boichat (nicolas@boichat.ch)
This program comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of this program under the terms of the GNU General Public License.
ddcpci initing...
Starting /usr/bin/ddcpci 2 2051184551 &...
Probing for available monitors...
==>Received!
==>Listing...
==>01:00.0 vendor=10de device=17c2 class=0300 irq=46 base0=f6000000 size0=1000000
==>Supported
==>01:00.0-0
==>01:00.0-1
==>01:00.0-2
==>00:02.0 vendor=8086 device=0412 class=0300 irq=32 base0=f7400004 size0=400000
==>EOL
Found PCI device (pci:01:00.0-0)
Found PCI device (pci:01:00.0-1)
Found PCI device (pci:01:00.0-2)
Device: pci:01:00.0-0
==>Received!
==>Opening...
==>01:00.0-0
==>01:00.0 vendor=10de device=17c2 class=0300 irq=46 base0=f6000000 size0=1000000
==>Opened (status=0)...
==>Received!
==>Data, mquery->flags = 0
Error while reading write message answer: Bad message
Reading EDID 0x50 failed.
ddcci_open returned -2
Device: pci:01:00.0-1
==>Received!
==>Opening...
==>01:00.0-1
==>01:00.0 vendor=10de device=17c2 class=0300 irq=46 base0=f6000000 size0=1000000
==>Opened (status=0)...
==>Received!
==>Data, mquery->flags = 0
Error while reading write message answer: Bad message
Reading EDID 0x50 failed.
ddcci_open returned -2
Device: pci:01:00.0-2
==>Received!
==>Opening...
==>01:00.0-2
==>01:00.0 vendor=10de device=17c2 class=0300 irq=46 base0=f6000000 size0=1000000
==>Opened (status=0)...
==>Received!
==>Data, mquery->flags = 0
Error while reading write message answer: Bad message
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-13)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-12)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-11)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-10)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-9)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-8)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-7)
ioctl(): Input/output error
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-6)
ioctl(): Connection timed out
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-5)
ioctl(): No such device or address
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-4)
Send: 00 | .
Recv: 00 | .
ioctl(): No such device or address
ioctl returned -1
ioctl(): No such device or address
ioctl returned -1
ioctl(): No such device or address
ioctl returned -1
I/O warning : failed to load external entity "/usr/share/ddccontrol-db/monitor/DELF016.xml"
Document not parsed successfully.
Control brightness has been discarded by the caps string.
Control contrast has been discarded by the caps string.
Control red has been discarded by the caps string.
Control green has been discarded by the caps string.
Control blue has been discarded by the caps string.
Control redblack has been discarded by the caps string.
Control greenblack has been discarded by the caps string.
Control blueblack has been discarded by the caps string.
Control colortemp has been discarded by the caps string.
Control hpos has been discarded by the caps string.
Control vpos has been discarded by the caps string.
Control hsize has been discarded by the caps string.
Control vsize has been discarded by the caps string.
Control auto has been discarded by the caps string.
Control hpincushion has been discarded by the caps string.
Control hpincushionbalance has been discarded by the caps string.
Control vlinearity has been discarded by the caps string.
Control vlinearitybalance has been discarded by the caps string.
Control hmisconvergence has been discarded by the caps string.
Control vmisconvergence has been discarded by the caps string.
Control keybalance has been discarded by the caps string.
Control key has been discarded by the caps string.
Control tdistortionctrl has been discarded by the caps string.
Control tdistortionbalance has been discarded by the caps string.
Control bdistortionctrl has been discarded by the caps string.
Control bdistortionbalance has been discarded by the caps string.
Control tilt has been discarded by the caps string.
Control hmoire has been discarded by the caps string.
Control vmoire has been discarded by the caps string.
Control focus has been discarded by the caps string.
Control coarse has been discarded by the caps string.
Control fine has been discarded by the caps string.
Control defaults has been discarded by the caps string.
Control defaultluma has been discarded by the caps string.
Control defaultgeom has been discarded by the caps string.
Control defaultcolor has been discarded by the caps string.
Control settings has been discarded by the caps string.
Control audiospeakervolume has been discarded by the caps string.
Control degauss has been discarded by the caps string.
Control secdegauss has been discarded by the caps string.
Control osdorientation has been discarded by the caps string.
Control inputsource has been discarded by the caps string.
Control dpms has been discarded by the caps string.
Control power has been discarded by the caps string.
ioctl(): No such device or address
ioctl returned -1
ddcci_open returned -1
Found I2C device (dev:/dev/i2c-3)
ioctl(): No such device or address
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-2)
ioctl(): No such device or address
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-1)
ioctl(): No such device or address
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Found I2C device (dev:/dev/i2c-0)
ioctl(): No such device or address
ioctl returned -1
Reading EDID 0x50 failed.
ddcci_open returned -2
Detected monitors :
- Device: dev:/dev/i2c-4
DDC/CI supported: No
Monitor Name: VESA standard monitor
Input type: Digital
No monitor supporting DDC/CI available.
If your graphics card need it, please check all the required kernel modules are loaded (i2c-dev, and your framebuffer driver).
ddcpci being released...
==>Received!
==>Quitting...
==>ddcpci is quitting.
No change with v364.19. I really want to grab another Nvidia card but having this broken makes it rather inconvenient for my setup. So I’ll bump just this once in the hope, some developer eyeballs can find their way to this (apparently long standing) issue. nvidia-bug-report.log.gz (283 KB)
Since posting I have found out that the issue (at lease for me) only effects the DisplayPort and works fine over HDMI (again no such issue under Windows).
Using GTX 1060 with BenQ XL2730 and NVIDIA-Linux-x86_64-384.47 :
ddcutil and ddccontrol can read the monitor over DVI-D (dual link) but not
DisplayPort or HDMI which is troublesome because I can’t get 144Hz over
DVI-D.
Just tested with NVIDIA-Linux-x86_64-384.59, Same ol’!
So is it correct that no one has DDC working over display port? GTX1060 running Nvidia driver 384.59 on Ubuntu give me “No monitor supporting DDC/CI available.”
I will add it did the same thing on HDMI. DDC works perfect in Windows.
Since posting I have found out that the issue (at lease for me) only effects the DisplayPort and works fine over HDMI (again no such issue under Windows).
Exact same problem with DisplayPort on GTX1050 running 384.90. DDC/CI works perfectly on Windows.
From what I can gather from googling, DDC/CI over DP seems broken on Linux for this whole generation of cards. Yet there’s no mention of it as a known issue in the driver’s release notes. Is this ever going to be fixed?
just a heads up, had flaky issues trying to dim/brighten my hp 27es monitor connected via hdmi to a gt710 (ubuntu 16 lts).
found this article and it works much better now after creating the file and rebooting, added the keyboard shortcuts for some pre-selects and I’m in business. Thanks ddcutil and everyone sorting this stuff out.