https://bugs.kde.org/show_bug.cgi?id=514405
--- Comment #5 from Richard <[email protected]> --- (In reply to Zamundaaa from comment #3) > > [ 5398.987584] i915 0000:00:02.0: [drm:intel_dp_compute_link_config [i915]] > > Try DSC (fallback=no, joiner=no, force=no) > > [ 5398.987731] i915 0000:00:02.0: [drm:intel_dp_compute_config_limits > > [i915]] [ENCODER:288:DDI C (TC)/PHY TC1][CRTC:262:pipe C] DP link limits: > > pixel clock 529200 kHz DSC on max lanes 2 max rate 810000 max pipe_bpp 24 > > max link_bpp 14.0000 > > [ 5398.987844] i915 0000:00:02.0: [drm:intel_dp_dsc_compute_config [i915]] > > No Valid pipe bpp for given mode ret = -22 > > [ 5398.987966] i915 0000:00:02.0: [drm:intel_dp_compute_link_config [i915]] > > Try DSC (fallback=no, joiner=no, force=no) > > [ 5398.988070] i915 0000:00:02.0: [drm:intel_dp_compute_config_limits > > [i915]] [ENCODER:288:DDI C (TC)/PHY TC1][CRTC:262:pipe C] DP link limits: > > pixel clock 529200 kHz DSC on max lanes 2 max rate 810000 max pipe_bpp 24 > > max link_bpp 14.0000 > > [ 5398.988173] i915 0000:00:02.0: [drm:intel_dp_dsc_compute_config [i915]] > > No Valid pipe bpp for given mode ret = -22 > > [ 5398.988281] i915 0000:00:02.0: [drm:intel_modeset_pipe_config [i915]] > > [ENCODER:288:DDI C (TC)/PHY TC1] config failure: -22 > That looks like the dock simply doesn't support the full resolution + > refresh rate of that display. > > Plasma 6.6 will have a timeout for giving up and disabling the screen > instead of using the best mode, at which point you can manually reduce the > resolution or refresh rate. > Ideally we'd be able to detect that and automatically downgrade the mode, > but KMS still doesn't report any more information than "that doesn't work", > so the timeout is the best we can do right now. Thank you. It did actually work (albeit unreliably) a couple of updates ago. I believe at full res. The dock is happy in Windows but I guess it knows to limit the refresh rate. Is there any way to force it to try 60 Hz, for example, as a workaround until 6.6? Thanks again. -- You are receiving this mail because: You are watching all bug changes.
