Ubuntu
linux package

  1. Oracular (24.10)
  2. Bug #2062951
  3. Comment #49

Comment 49 for bug 2062951

Revision history for this message
Claus7 (lastexile7gr) wrote : Re: Random flickering with Intel i915 (Gen9 GPUs) on Linux 6.8 (Ubuntu 24.04)

Hello,

upgraded from ubuntu 23.10 to 24.04, when at the first time I saw flickering.

some attempts:
1) sudo gedit /etc/modprobe.d/i915.conf
options i915 enable_psr=1 (0 value was what I found there)

2) sudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="intel_pstate=guided quiet splash options i915 enable_psr=0"

this resulted in unknown parameter:
3) sudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="intel_pstate=guided quiet splash options i915.enable_rc6"

this is what (it seems up to now that) worked:
4) sudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="intel_pstate=guided quiet splash intel_idle.max_cstate=1"

for attempts 2-4 grub was updated and then rebooted.

Regards!

specs:
## Hardware Information:
- **Processor:** Intel® Core™ i5-7200U × 4
- **Graphics:** Intel® HD Graphics 620 (KBL GT2)

## Software Information:
- **OS Name:** Ubuntu 24.04 LTS
- **Windowing System:** Wayland
- **Kernel Version:** Linux 6.8.0-39-generic