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no hdmi video after suspend on intel NUC6i7KYK
Do the xserver-xorg-video-intel drivers support dual monitors with Intel HD Graphics 3000?Why does HDMI sound fail?No HDMI 2.0 output from NUC6i7KYK on 16.04 — fixes?Laptops, multiple screens, multiple interfacesHow to enable multiple displays in 16.04 with ThinkPad X1 Carbon and Intel HD Graphics 520 cardHDMI not detected using 7" touchscreen display on Gigabyte Brix running Ubuntu 14.04No sound through HDMI on my NUCHDMI stops working when DisplayPort is unpluggedSystem thinks HDMI port is a DisplayPort (per xrandr)Monitor disconnects on sleep
I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI.
When it wakes up from suspend (S3), it never wakes up the display. The system is up and responsive (I can ssh in), but the display stays off, with no signal. No amount of turning off/on the monitor or unplugging the HDMI cable will restore it.
I tried some of the steps from this guide and found the exact same issue when booted into "runlevel 3", which boots into a console instead of X. (I believe in this case the intel video drivers are still in effect, since the console it boots into is clearly in graphics mode.)
I have not tried hooking up a monitor via DisplayPort because I don't have a capable monitor, so I'm not sure if it's specific to HDMI output or not.
How can I diagnose and fix this issue? Most of the guides I can find are seemingly out of date (e.g. from the article I linked, I can't find the intel_reg_dumper or intel_gpu_dump tools, nor does /proc/acpi/event exist, etc.) or don't go into enough detail (e.g. I was looking at section 3.2.1 of this page, but I have no idea what it means to "set CONFIG_DRM_I915=n").
I had it dump dmesg after waking up. The full output that came after suspending is here, perhaps these two lines might be a clue, if they mean anything to anyone:
[ 158.639355] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* failed to enable link training
[ 158.647999] [drm:intel_dp_start_link_train [i915_bpo]] *ERROR* failed to start channel equalization
Any help would be appreciated. Thanks!
16.04 suspend intel-graphics hdmi intel
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
add a comment |
I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI.
When it wakes up from suspend (S3), it never wakes up the display. The system is up and responsive (I can ssh in), but the display stays off, with no signal. No amount of turning off/on the monitor or unplugging the HDMI cable will restore it.
I tried some of the steps from this guide and found the exact same issue when booted into "runlevel 3", which boots into a console instead of X. (I believe in this case the intel video drivers are still in effect, since the console it boots into is clearly in graphics mode.)
I have not tried hooking up a monitor via DisplayPort because I don't have a capable monitor, so I'm not sure if it's specific to HDMI output or not.
How can I diagnose and fix this issue? Most of the guides I can find are seemingly out of date (e.g. from the article I linked, I can't find the intel_reg_dumper or intel_gpu_dump tools, nor does /proc/acpi/event exist, etc.) or don't go into enough detail (e.g. I was looking at section 3.2.1 of this page, but I have no idea what it means to "set CONFIG_DRM_I915=n").
I had it dump dmesg after waking up. The full output that came after suspending is here, perhaps these two lines might be a clue, if they mean anything to anyone:
[ 158.639355] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* failed to enable link training
[ 158.647999] [drm:intel_dp_start_link_train [i915_bpo]] *ERROR* failed to start channel equalization
Any help would be appreciated. Thanks!
16.04 suspend intel-graphics hdmi intel
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
1
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01
add a comment |
I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI.
When it wakes up from suspend (S3), it never wakes up the display. The system is up and responsive (I can ssh in), but the display stays off, with no signal. No amount of turning off/on the monitor or unplugging the HDMI cable will restore it.
I tried some of the steps from this guide and found the exact same issue when booted into "runlevel 3", which boots into a console instead of X. (I believe in this case the intel video drivers are still in effect, since the console it boots into is clearly in graphics mode.)
I have not tried hooking up a monitor via DisplayPort because I don't have a capable monitor, so I'm not sure if it's specific to HDMI output or not.
How can I diagnose and fix this issue? Most of the guides I can find are seemingly out of date (e.g. from the article I linked, I can't find the intel_reg_dumper or intel_gpu_dump tools, nor does /proc/acpi/event exist, etc.) or don't go into enough detail (e.g. I was looking at section 3.2.1 of this page, but I have no idea what it means to "set CONFIG_DRM_I915=n").
I had it dump dmesg after waking up. The full output that came after suspending is here, perhaps these two lines might be a clue, if they mean anything to anyone:
[ 158.639355] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* failed to enable link training
[ 158.647999] [drm:intel_dp_start_link_train [i915_bpo]] *ERROR* failed to start channel equalization
Any help would be appreciated. Thanks!
16.04 suspend intel-graphics hdmi intel
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI.
When it wakes up from suspend (S3), it never wakes up the display. The system is up and responsive (I can ssh in), but the display stays off, with no signal. No amount of turning off/on the monitor or unplugging the HDMI cable will restore it.
I tried some of the steps from this guide and found the exact same issue when booted into "runlevel 3", which boots into a console instead of X. (I believe in this case the intel video drivers are still in effect, since the console it boots into is clearly in graphics mode.)
I have not tried hooking up a monitor via DisplayPort because I don't have a capable monitor, so I'm not sure if it's specific to HDMI output or not.
How can I diagnose and fix this issue? Most of the guides I can find are seemingly out of date (e.g. from the article I linked, I can't find the intel_reg_dumper or intel_gpu_dump tools, nor does /proc/acpi/event exist, etc.) or don't go into enough detail (e.g. I was looking at section 3.2.1 of this page, but I have no idea what it means to "set CONFIG_DRM_I915=n").
I had it dump dmesg after waking up. The full output that came after suspending is here, perhaps these two lines might be a clue, if they mean anything to anyone:
[ 158.639355] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* failed to enable link training
[ 158.647999] [drm:intel_dp_start_link_train [i915_bpo]] *ERROR* failed to start channel equalization
Any help would be appreciated. Thanks!
16.04 suspend intel-graphics hdmi intel
16.04 suspend intel-graphics hdmi intel
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
asked Jul 3 '16 at 20:18
chazomaticuschazomaticus
7493718
7493718
1
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01
add a comment |
1
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01
1
1
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01
add a comment |
2 Answers
2
active
oldest
votes
Hello I have also a NUC ( but other version ) and I have never have this issue. You can try to see all the errors that you have when the system is start up.
sudo dmesg --level err
Also get information about your graphic card, is your system recognize it?
lspci -vnn | grep VGA -A 12
You can also see the version of your driver
modinfo i915 | grep verm
mine is : vermagic: 4.15.0-43-generic SMP mod_unload
I recommend you to gather this information to be clear if there are other people with the same problem.
Could you also compare the services you have running before and after suspend ?
systemctl | grep running > file.txt
systemctl | grep running > file2.txt
diff file.txt file2.txt
may be you have a clue some of the services are not running.
answered Jan 6 at 14:26
agalanagalan
11
add a comment |
We have had the same issues with these skull canyon NUC's and a 3 monitor set-up. We had HDMI-HDMI, thunderbolt-HDMI, and DP-HDMI. We put it down to the LG monitors we had but the behaviour was like when you connect to a TV using HDMI and once the monitor doesn't get HDMI signal it just shuts-off. So, yes it is HDMI specific as you say. We resolved this by using converters(and cables) and connecting the monitors using the DVI inputs on the monitors and now the displays don't shutdown.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Hello I have also a NUC ( but other version ) and I have never have this issue. You can try to see all the errors that you have when the system is start up.
sudo dmesg --level err
Also get information about your graphic card, is your system recognize it?
lspci -vnn | grep VGA -A 12
You can also see the version of your driver
modinfo i915 | grep verm
mine is : vermagic: 4.15.0-43-generic SMP mod_unload
I recommend you to gather this information to be clear if there are other people with the same problem.
Could you also compare the services you have running before and after suspend ?
systemctl | grep running > file.txt
systemctl | grep running > file2.txt
diff file.txt file2.txt
may be you have a clue some of the services are not running.
answered Jan 6 at 14:26
agalanagalan
11
add a comment |
Hello I have also a NUC ( but other version ) and I have never have this issue. You can try to see all the errors that you have when the system is start up.
sudo dmesg --level err
Also get information about your graphic card, is your system recognize it?
lspci -vnn | grep VGA -A 12
You can also see the version of your driver
modinfo i915 | grep verm
mine is : vermagic: 4.15.0-43-generic SMP mod_unload
I recommend you to gather this information to be clear if there are other people with the same problem.
Could you also compare the services you have running before and after suspend ?
systemctl | grep running > file.txt
systemctl | grep running > file2.txt
diff file.txt file2.txt
may be you have a clue some of the services are not running.
answered Jan 6 at 14:26
agalanagalan
11
add a comment |
Hello I have also a NUC ( but other version ) and I have never have this issue. You can try to see all the errors that you have when the system is start up.
sudo dmesg --level err
Also get information about your graphic card, is your system recognize it?
lspci -vnn | grep VGA -A 12
You can also see the version of your driver
modinfo i915 | grep verm
mine is : vermagic: 4.15.0-43-generic SMP mod_unload
I recommend you to gather this information to be clear if there are other people with the same problem.
Could you also compare the services you have running before and after suspend ?
systemctl | grep running > file.txt
systemctl | grep running > file2.txt
diff file.txt file2.txt
may be you have a clue some of the services are not running.
answered Jan 6 at 14:26
agalanagalan
11
Hello I have also a NUC ( but other version ) and I have never have this issue. You can try to see all the errors that you have when the system is start up.
sudo dmesg --level err
Also get information about your graphic card, is your system recognize it?
lspci -vnn | grep VGA -A 12
You can also see the version of your driver
modinfo i915 | grep verm
mine is : vermagic: 4.15.0-43-generic SMP mod_unload
I recommend you to gather this information to be clear if there are other people with the same problem.
Could you also compare the services you have running before and after suspend ?
systemctl | grep running > file.txt
systemctl | grep running > file2.txt
diff file.txt file2.txt
may be you have a clue some of the services are not running.
answered Jan 6 at 14:26
agalanagalan
11
answered Jan 6 at 14:26
agalanagalan
11
answered Jan 6 at 14:26
agalanagalan
11
answered Jan 6 at 14:26
agalanagalan
11
11
add a comment |
add a comment |
We have had the same issues with these skull canyon NUC's and a 3 monitor set-up. We had HDMI-HDMI, thunderbolt-HDMI, and DP-HDMI. We put it down to the LG monitors we had but the behaviour was like when you connect to a TV using HDMI and once the monitor doesn't get HDMI signal it just shuts-off. So, yes it is HDMI specific as you say. We resolved this by using converters(and cables) and connecting the monitors using the DVI inputs on the monitors and now the displays don't shutdown.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
We have had the same issues with these skull canyon NUC's and a 3 monitor set-up. We had HDMI-HDMI, thunderbolt-HDMI, and DP-HDMI. We put it down to the LG monitors we had but the behaviour was like when you connect to a TV using HDMI and once the monitor doesn't get HDMI signal it just shuts-off. So, yes it is HDMI specific as you say. We resolved this by using converters(and cables) and connecting the monitors using the DVI inputs on the monitors and now the displays don't shutdown.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
We have had the same issues with these skull canyon NUC's and a 3 monitor set-up. We had HDMI-HDMI, thunderbolt-HDMI, and DP-HDMI. We put it down to the LG monitors we had but the behaviour was like when you connect to a TV using HDMI and once the monitor doesn't get HDMI signal it just shuts-off. So, yes it is HDMI specific as you say. We resolved this by using converters(and cables) and connecting the monitors using the DVI inputs on the monitors and now the displays don't shutdown.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
We have had the same issues with these skull canyon NUC's and a 3 monitor set-up. We had HDMI-HDMI, thunderbolt-HDMI, and DP-HDMI. We put it down to the LG monitors we had but the behaviour was like when you connect to a TV using HDMI and once the monitor doesn't get HDMI signal it just shuts-off. So, yes it is HDMI specific as you say. We resolved this by using converters(and cables) and connecting the monitors using the DVI inputs on the monitors and now the displays don't shutdown.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 1 min ago
hawkeye_nickhawkeye_nick
11
answered 1 min ago
hawkeye_nickhawkeye_nick
11
11
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
hawkeye_nick is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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1
This might be a quite old post, but I wanted to inform other people who might come here, that this problem is persistent. I have Ubuntu 16.04 and it is full of issues with these NUC machines. Mine, for example, NUC6I7KYK, keeps flickering the monitor connected to the Display Port (if configured at 2K). If you have these machines, do not install Ubuntu! Run away from problems.
– Ev.
May 1 '17 at 7:01