There you can see the relation to the Input devices, such as keyboard, touchpad, trackball or mouse.
Well… Want to try creating the
20-intel.conf
There and fill it with
Section “Device”
Identifier “Intel Graphics”
Driver “intel”
Option “NoAccel” “True”
EndSection
and see if you need to hammer the esc key 75 times after?
I was able to create the file with sudo from the terminal in Zorin. I’ll restart to see if anything changes.
Edit: Back to the login loop. Booting to terminal to remove the file.
Edit 2: Back to the desktop.
I just had a thought after all of that… What is your current DPI setting? 59.95hz? Or it still 100million or something?
I opened up the Nvidia Server Settings again, and it seems I’ve lost the ability to swap my video settings via this method.
As opposed to how it used to look:
Undoubtedly affected by my guidance- even so, assuming you have removed the file we created earlier from the xorg.conf.d directory,
You could check the BIOS settings on Discrete Graphics, just to be sure.
Looking at the image above- you have Two monitors, different resolutions? OR different sizes. Is one a notebook and one a Monitor or is it two external monitors on a desktop?
Correct, both. The laptop display is 1080p, whereas the external display connected via the Thunderbolt Dock is 1440p. Note that I can set it to run as a single display on the 1440p display, and I still experience the flickering (last I checked). I could test connecting a display that shares a resolution, and also could test connecting the display via the laptops HDMI port, as opposed to running it through the dock.
Highly recommend the HDMI port.
I also was using 1280 on a notebook and 1440 on external monitor for a long time until just very recently (and I do mean very) when I switched to Desktop PC (at long last) and have two 1440 monitors.
Never had any trouble.
Can you
sudo nano /etc/default/grub
and relay what is on this line?
GRUB_CMDLINE_LINUX_DEFAULT=
That part did not help so let’s remove that.
Can you open another terminal and in it, run
grep “model name” /proc/cpuinfo | sort -u
and relay that output…
Ok, back to the first terminal, can you change the original default line to:
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash intel_idle.max_cstate=1”
Can you run
sudo nano ~/.profile
and look through the output and see if there is anything in there that looks like
export Display=
in it?
If no, run in terminal
sudo update-grub
I added the intel_idle.max_cstate=1 and couldn’t find any export Display= (or anything similar) so I ran sudo update-grub and this is the output:
Sourcing file `/etc/default/grub’
Generating grub configuration file …
Found theme: /usr/share/grub/themes/zorin/theme.txt
Found linux image: /boot/vmlinuz-5.4.0-65-generic
Found initrd image: /boot/initrd.img-5.4.0-65-generic
Found linux image: /boot/vmlinuz-5.4.0-45-generic
Found initrd image: /boot/initrd.img-5.4.0-45-generic
Adding boot menu entry for EFI firmware configuration
done
Nothing went wrong there- and lacking an export value on your display is a good thing. I am just wracking my brains on possible causes.
Since you updated grub, when you feel up to it, you can try rebooting and testing for flickering, or if there is loss of control over peripherals.
Rebooted, can still replicate the flickering and loss of devices connected via the dock.
For now, so we do not forget, as I had earlier (thanks for reminding me), lets revert your grub back:
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash”
sudo update-grub
Killer practice, at least.
What happens if no Dock?
Updated that line, updated Grub.
I’ve disconnected the dock, and connected via the HDMI port on the laptop to another display (1080p, I know this introduces new variables, but my 24" 1440p display only has DisplayPort) and cannot replicate the flickering or loss of peripherals.
Ok, so on a different monitor plugged into HDMI directly, no Dock- No flickering?
Do you remember… You said, “I think it’s the dock…” And I said, “I think it is the graphics…”
Can’t say we did not test thoroughly to be sure. In fairness… Losing the Mouse, Keyboard and screen intermittently- the above really would have worked out better if it’s the graphics.
So, think it is the Dock?
Yeah, I have to imagine it’s an issue with the dock. I need to figure out how to get Windows back on this so I can attempt to use Dell’s method to update the BIOS. Until then I guess I have to live with the flickering and 24hz, if I want to use it. Unfortunate, but at least we’ve narrowed the culprit.
I am curious if there’s a way to rectify my ability to swap between my Intel/Nvidia graphics.
When you switch to tty, it is similar to the prompt used in Recovery mode.
Recovery mode is much like safe mode.
ctrl+alt+F2 will get you into tty, and ctrl+alt+F7 should get you back to the desktop.
From tty,
sudo Xorg -configure
startx
Then check nvidia-settings…
