I made the switch to 19.10 and the problem is the same in the logs. There is a slight difference however, the screen doesn't flicker any more upon the change request. I suppose it now detects the adjusted modeline is the same as the current one, hence nothing to do.
Here's some output extracted from dmesg (ISO date format) : 2019-11-04T16:39:13,088276+01:00 [drm:intel_dump_pipe_config [i915]] requested mode: 2019-11-04T16:39:13,088290+01:00 [drm:drm_mode_debug_printmodeline [drm]] Modeline "": 0 92450 1920 1968 2000 2080 1080 1083 1088 1111 0x0 0x9 2019-11-04T16:39:13,088323+01:00 [drm:intel_dump_pipe_config [i915]] adjusted mode: 2019-11-04T16:39:13,088336+01:00 [drm:drm_mode_debug_printmodeline [drm]] Modeline "1920x1080": 60 140490 1920 1972 2007 2094 1080 1083 1089 1118 0x48 0x9 So it's the current 19.10 kernel (5.3.0-19-generic). I'm considering trying v5.4-rc5. I will report back once (and if) it's done. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848746 Title: Refresh rate change requests to 40Hz are "adjusted" back to 60Hz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1848746/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
