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After upgrading to 18.04 Ubuntu monitor is unknown
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Have been running Ubuntu Mate 17.10 and just upgraded to 18.04 LTS.
But after upgrading my monitor settings are all wrong and can't set the proper resolution.
How can I resolve this?
ubuntu monitors
add a comment |
Have been running Ubuntu Mate 17.10 and just upgraded to 18.04 LTS.
But after upgrading my monitor settings are all wrong and can't set the proper resolution.
How can I resolve this?
ubuntu monitors
Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago
add a comment |
Have been running Ubuntu Mate 17.10 and just upgraded to 18.04 LTS.
But after upgrading my monitor settings are all wrong and can't set the proper resolution.
How can I resolve this?
ubuntu monitors
Have been running Ubuntu Mate 17.10 and just upgraded to 18.04 LTS.
But after upgrading my monitor settings are all wrong and can't set the proper resolution.
How can I resolve this?
ubuntu monitors
ubuntu monitors
edited May 27 '18 at 16:56
Jeff Schaller♦
48.7k11 gold badges72 silver badges162 bronze badges
48.7k11 gold badges72 silver badges162 bronze badges
asked May 27 '18 at 16:14
BachaloBachalo
3082 gold badges6 silver badges17 bronze badges
3082 gold badges6 silver badges17 bronze badges
Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago
add a comment |
Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago
Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago
add a comment |
2 Answers
2
active
oldest
votes
I had this issue and first switched to nouveau driver which fixed my laptop's display, but did not allow me to connect a second monitor. I fixed that issue running:
sudo ubuntu-drivers devices
which showed that the nvidia driver was recommended.
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
So I then ran
sudo ubuntu-drivers autoinstall
which installed and used the nvidia driver.
After rebooting sudo shutdown -r now
it worked!
This is the post I followed to get those instructions.
I'm gettingsudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I findubuntu-drivers-common
, though; is that equivalent?
– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
add a comment |
The autoinstall and shutdown -r commands worked beautifully for me. Thanks.
New contributor
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
I had this issue and first switched to nouveau driver which fixed my laptop's display, but did not allow me to connect a second monitor. I fixed that issue running:
sudo ubuntu-drivers devices
which showed that the nvidia driver was recommended.
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
So I then ran
sudo ubuntu-drivers autoinstall
which installed and used the nvidia driver.
After rebooting sudo shutdown -r now
it worked!
This is the post I followed to get those instructions.
I'm gettingsudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I findubuntu-drivers-common
, though; is that equivalent?
– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
add a comment |
I had this issue and first switched to nouveau driver which fixed my laptop's display, but did not allow me to connect a second monitor. I fixed that issue running:
sudo ubuntu-drivers devices
which showed that the nvidia driver was recommended.
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
So I then ran
sudo ubuntu-drivers autoinstall
which installed and used the nvidia driver.
After rebooting sudo shutdown -r now
it worked!
This is the post I followed to get those instructions.
I'm gettingsudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I findubuntu-drivers-common
, though; is that equivalent?
– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
add a comment |
I had this issue and first switched to nouveau driver which fixed my laptop's display, but did not allow me to connect a second monitor. I fixed that issue running:
sudo ubuntu-drivers devices
which showed that the nvidia driver was recommended.
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
So I then ran
sudo ubuntu-drivers autoinstall
which installed and used the nvidia driver.
After rebooting sudo shutdown -r now
it worked!
This is the post I followed to get those instructions.
I had this issue and first switched to nouveau driver which fixed my laptop's display, but did not allow me to connect a second monitor. I fixed that issue running:
sudo ubuntu-drivers devices
which showed that the nvidia driver was recommended.
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
So I then ran
sudo ubuntu-drivers autoinstall
which installed and used the nvidia driver.
After rebooting sudo shutdown -r now
it worked!
This is the post I followed to get those instructions.
answered Sep 7 '18 at 18:31
derrickiderricki
212 bronze badges
212 bronze badges
I'm gettingsudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I findubuntu-drivers-common
, though; is that equivalent?
– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
add a comment |
I'm gettingsudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I findubuntu-drivers-common
, though; is that equivalent?
– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
I'm getting
sudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I find ubuntu-drivers-common
, though; is that equivalent?– HelloGoodbye
Jun 18 at 8:00
I'm getting
sudo: ubuntu-drivers: command not found
when I try this, and I don't find any package with that exact name. I find ubuntu-drivers-common
, though; is that equivalent?– HelloGoodbye
Jun 18 at 8:00
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
I checked and I think that is the package where my executable came from.
– derricki
Jun 19 at 20:59
add a comment |
The autoinstall and shutdown -r commands worked beautifully for me. Thanks.
New contributor
add a comment |
The autoinstall and shutdown -r commands worked beautifully for me. Thanks.
New contributor
add a comment |
The autoinstall and shutdown -r commands worked beautifully for me. Thanks.
New contributor
The autoinstall and shutdown -r commands worked beautifully for me. Thanks.
New contributor
New contributor
answered 2 hours ago
Kevin DoyleKevin Doyle
1
1
New contributor
New contributor
add a comment |
add a comment |
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Do you have an NVIDIA GPU? In that case, you might try reinstalling your graphics card driver and see if that helps (that worked for me when my monitor was suddenly classifier as "Unknown," although I'm not sure what caused it to loose its recognition).
– HelloGoodbye
Jun 20 at 11:57
You should also make sure you are not using a VGA adapter for your monitor. Use either DVI, HDMI, or Display Port. No VGA on either end.
– Cliff Armstrong
1 hour ago