Score:0

screen shows tv-static / solid color and is very slow

id flag

Lenovo Slim 7 14IAP7 - Type 82SX Ubuntu 22.04 (clean installation, also tried 22.10)

Recently, my computer has started flashing to tv-static or solid colors and being unusably slow whenever I do anything involving the graphics on the built in display.

When I use my computer with an external monitor it is fine.

When I use my computer with the "trial version" of ubuntu, i.e. booting from a bootable usb, it is also fine.

But as is, the computer is completely unusable (except through an external monitor). Please help!

ubuntu

---edit:---

00:02.0 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c)
    Subsystem: Lenovo Device 3807
    Kernel driver in use: i915
    Kernel modules: i915
br flag
it is this one https://psref.lenovo.com/syspool/Sys/PDF/Lenovo/Lenovo_Slim_7_14IAP7/Lenovo_Slim_7_14IAP7_Spec.pdf
Pilot6 avatar
cn flag
Pease [edit] your question and add output of `lspci -k | grep -EA3 'VGA|3D|Display'` terminal command.
Alek Westover avatar
id flag
@trondhansen yes
Score:0
id flag

What worked for me:
I downgraded my kernel from 5.19 to 5.15

sudo apt remove linux-image-5.19.0-32-generic
sudo apt install linux-generic
sudo apt autoremove

Caution these commands can have drastic effects on your computer.

ar flag
Don't forget to accept your answer as correct by clicking on the gray check mark next to it and turn it green. This will help others.
Score:0
dk flag

Boot into Ubuntu 22.04, and open the terminal and enter this code to enter the grub configuration file.

sudo nano /etc/default/grub

Add i915.enable_psr=0 to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

The final line should look like:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0"

(You can remove quiet splash if you want to, it shows messages that can help with fixing issues.)

Then write out the file using Ctrl+O, and then exit the nano using Ctrl+X.

Then run

sudo update-grub

Reboot, and the screen should be functioning.

ar flag
It is not clear that one has to add `i915.enable_psr=0` inside the double quote next to `"quiet splash"'`.
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