Ubuntu
linux package

  1. Oracular (24.10)
  2. Bug #2062951
  3. Comment #59

Comment 59 for bug 2062951

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

I'm having a similar issue on a T480 with a discrete Nvidia Geforce MX150 and Intel UHD Graphics 620

Recently updated to Xubuntu 24.04 from 22.04 and now after a random amount of time purple lines appear from the bottom of the screen and then it goes black, similar to this Reddit post -

https://www.reddit.com/r/thinkpad/s/KM38RtoCOo

If I leave it until the display goes to sleep and then wake it, it recovers. If I attempt to interact with it, I have to force a reboot. Not doing anything specific when it happens, sometimes just streaming. Happens both connected to AC power and not

The only thing I can see that could be related in the logs is *ERROR* CPU pipe A FIFO underrun in syslog

Added intel_iommu=igfx_off to GRUB_CMDLINE_LINUX_DEFAULT - will post again if that doesn't resolve the issue