Monitor Issues on Ubuntu

nqminh11 · May 12, 2025, 3:32am

Hi there,

I am having the same issue with my Ubuntu. I have tried all the methods including: 1. Disable Secure Boot, 2. Install NVIDIA Driver 550 , 560 (though my VGU is Intel UHD 520 Whiskey Lake by ASUSTek not NVIDIA), 3. sudo ubuntu-drivers autoinstall, 4. Install Mission Center (I monitored and saw my GPU is not used).

I tried different USB Type C from different Brand. The one provided with my laptop (ASUS: Type C to HDMI) → Not working. The one i got from my coworker: Urgreen USB Type C to HDMI) Not working.

I tried multiple monitors. Did not work.

My Display setting in UBUNTU 24.04.02 LTS did not have options for Joints Display / Share Displays or multiple Display.

I am desperately giving up, and might going back to Window from Linux Ubuntu caused it just worked.

Here is the information of my system.

Ubuntu Version: 24.04.02 LTS
Relevant System information:
3. sudo lshw -C display
-display
description: VGA compatible controller
product: WhiskeyLake-U GT2 [UHD Graphics 620]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 mode=1920x1080 resolution=1920,1080 visual=truecolor xres=1920 yres=1080
resources: iomemory:600-5ff iomemory:400-3ff irq:143 memory:604a000000-604affffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff
uname -a Linux asus-ZenBook-UX391FA-UX391FA 6.11.0-25-generic #25~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Apr 15 17:20:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 294mm x 165mm 1920x1080 59.93*+ 30.00 1680x1050 59.93 1400x1050 59.93 1600x900 59.93 1280x1024 59.93 1400x900 59.93 1280x960 59.93 1440x810 59.93 1368x768 59.93 1280x800 59.93 1280x720 59.93 1024x768 59.93 960x720 59.93 928x696 59.93 896x672 59.93 1024x576 59.93 960x600 59.93 960x540 59.93 800x600 59.93 840x525 59.93 864x486 59.93 700x525 59.93 800x450 59.93 640x512 59.93 700x450 59.93 640x480 59.93 720x405 59.93 684x384 59.93 640x360 59.93 512x384 59.93 512x288 59.93 480x270 59.93 400x300 59.93 432x243 59.93 320x240 59.93 360x202 59.93 320x180 59.93 DP-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis)

nqminh11 · May 12, 2025, 3:13am

Hi there,

I am having the same issue with my Ubuntu. I have tried all the methods including: 1. Disable Secure Boot, 2. Install NVIDIA Driver 550 , 560 (though my VGU is Intel UHD 520 Whiskey Lake by ASUSTek not NVIDIA), 3. sudo ubuntu-drivers autoinstall, 4. Install Mission Center (I monitored and saw my GPU is not used).

I tried different USB Type C from different Brand. The one provided with my laptop (ASUS: Type C to HDMI) → Not working. The one i got from my coworker: Urgreen USB Type C to HDMI) Not working.

I tried multiple monitors. Did not work.

My Display setting in UBUNTU 24.04.02 LTS did not have options for Joints Display / Share Displays or multiple Display.

I am desperately giving up, and might going back to Window from Linux Ubuntu caused it just worked.

Here is the information of my system.

Ubuntu Version: 24.04.02 LTS
Relevant System information:
sudo lshw -C display:
*-display
description: VGA compatible controller
product: WhiskeyLake-U GT2 [UHD Graphics 620]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 mode=1920x1080 resolution=1920,1080 visual=truecolor xres=1920 yres=1080
resources: iomemory:600-5ff iomemory:400-3ff irq:143 memory:604a000000-604affffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff

uname -a
Linux asus-ZenBook-UX391FA-UX391FA 6.11.0-25-generic #25~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Apr 15 17:20:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 294mm x 165mm
   1920x1080     59.93*+  30.00  
   1680x1050     59.93  
   1400x1050     59.93  
   1600x900      59.93  
   1280x1024     59.93  
   1400x900      59.93  
   1280x960      59.93  
   1440x810      59.93  
   1368x768      59.93  
   1280x800      59.93  
   1280x720      59.93  
   1024x768      59.93  
   960x720       59.93  
   928x696       59.93  
   896x672       59.93  
   1024x576      59.93  
   960x600       59.93  
   960x540       59.93  
   800x600       59.93  
   840x525       59.93  
   864x486       59.93  
   700x525       59.93  
   800x450       59.93  
   640x512       59.93  
   700x450       59.93  
   640x480       59.93  
   720x405       59.93  
   684x384       59.93  
   640x360       59.93  
   512x384       59.93  
   512x288       59.93  
   480x270       59.93  
   400x300       59.93  
   432x243       59.93  
   320x240       59.93  
   360x202       59.93  
   320x180       59.93  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)

rubi1200 · May 12, 2025, 3:58am

@nqminh11 Welcome to Ubuntu Discourse

I have moved your 2 posts into their own topic.

While your issues may seem to be the same or similar as others, they usually are not.

Always best to start your own topic where we can provide support.

Thanks for understanding.

guiverc · May 12, 2025, 4:25am

Also asked at https://askubuntu.com/questions/1547562/ubuntu-24-04-02-lts-not-recognizing-second-monitors

nqminh11 · May 12, 2025, 5:03am

I have not found any working solutions on that topic. That’s also me!

nqminh11 · May 12, 2025, 5:08am

Thanks Rubi. Looking for helps. Million thanks to any one who have insights in this cases.

Here is my screen shot of the display setting and the mission centers.

guiverc · May 12, 2025, 5:20am

Fair enough.

Neither here nor Ask Ubuntu have rules forbidding you from asking at different places _{(Stack Exchange forbids multiple asks on their platform; Ask Ubuntu being one of their sites, but this isn’t so no rule break there)}, but providing link allows helpers who use multiple sites to recognize its a repeated question from the same user, thus I (and I’m told others) prefer to see links for other questions; my post just gave that other link.

nqminh11 · May 14, 2025, 5:11am

If any one having knowledge about graphic, displays, USB type C to HDMI. I am more than happy to pantreon you for a donating help. I love Ubuntu and do not want to go back to window just because of this issue.

nqminh11 · May 15, 2025, 9:27am

Before it close, is there any one else there, whom can pay attention to this issue!

Much thanks.

guiverc · May 16, 2025, 5:36am

I suffered power loss on property for hours (5) hours today, so a machine of mine running noble or Ubuntu 24.04 LTS which has 3 monitors attached to two graphics/cards (whatever is on motherboard & a nvidia card) lost power.

On reboot I was suddenly down to a single monitor with no capacity to enable 2nd/3rd… The fix for me was just reboot & select the GA kernel stack (ie. 6.8 kernel) & machine was as it was before power loss; no doubt what I was using… so switching kernel stacks maybe an option.

An install can have multiple stacks installed; the box I’m using as example here does have (eg. in the instructions it suggests only that you remove the unwanted stack after testing; I just never removed it), so switching kernel stack maybe an option.

https://wiki.ubuntu.com/Kernel/LTSEnablementStack

I don’t know your kernel modules (I didn’t understand what you’re running, as you mention more than one, but only one will work at a time), and installing NVIDIA if you don’t have a NVIDIA card makes no sense to me… but I mention this only as switching kernel stacks resolved an issue for me a short while ago where I was down to a single monitor.

[ This may actually be the first boot of my machine this year, so I’ve not really explore the issue with the 6.11 kernel, but given GA or 6.8 has always worked & is supported the full life of the product, I’m happy there on that install. Your issue maybe caused by your addition of the nvidia drivers anyway ]

nqminh11 · June 3, 2025, 7:26am

Thank you Guiverc.

I am not sure how to check the GA kernel stacks. I shall perform some research and get back.

For NVIDIA, i guess i was blindly looking for solutions and there seem to be so many people out there who have the same problem with NVIDA GPU.

Best

guiverc · June 3, 2025, 7:51am

In the link I provided look for the section

“To downgrade from HWE/OEM to GA kernel:”

which tells you how to do it. As you’re currently using the 6.11 which is the current HWE kernel, those instructions tell you firstly how to install the GA kernel stack,

“Reboot, … Check that everything works as expected”

which I’d do, but it then tells you how to remove the ‘unwanted’ kernel stack (it uses the wording other kernel flavors), but that’s actually optional, as you can keep both kernel stacks installed too; ie. if you have GA + HWE kernels. You’ll be using slightly more disk space as both are installed; slightly more bandwidth as both will get updated/fixes, but can select which at grub on boot. Only benefit of this maybe the issue with 6.11 maybe fixed; even if not whilst 6.11, that 6.11 will soon change to 6.14.

Alas many closed-source kernel modules (particularly NVIDIA) will prevent multiple kernel stacks from co-existing; but that’s only an issue with some of the closed-source modules.

system · June 11, 2025, 3:32am

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