Comment 21 for bug 2062951

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Christoph Wolk (spikespiegel-gmx) wrote : Re: Random flickering with Intel i915 on Linux 6.8 (Ubuntu 24.04)

Same problem here, using Kubuntu 24.04 on a fresh install (with Xorg). Intermittent flickering of the whole screen; I could not determine a specific pattern that caused it. Happened several times per day, usually briefly but sometimes for several seconds.

Adding "i915.enable_dc=0 intel_idle.max_cstate=2" to the grub defaults fixes the issue completely; no further flickering observed in about a week of usage.

System: Thinkpad T470

lspci -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)

Let me know if any information or testing I could provide would help fix this for others.