I have a new Framework laptop running Fedora 35, stock kernel package 5.14.16-301, BDB version 240.
My CPU/GPU is an 11th gen i7-1165G7, connected via a USB-C-to-DP cable to a 2014-era Dell P2715Q monitor that supports 3840x2160@60Hz over DP (my Mac drives it this way just fine). With i915 debugging enabled, I can see the 4K modeline being detected and discarded because CLOCK_HIGH. Here's some debug output in a paste as it's longish and verbose: https://pastebin.com/reGcmxYF Line 17 of that paste seems weird, where the value of everything is zero for some reason? Here's some output from the monitor-edid tool. If there's any more information I can supply to track this down, I'm happy to do what I can. Name: DELL P2715Q EISA ID: DEL40bd EDID version: 1.4 EDID extension blocks: 1 Screen size: 59.7 cm x 33.6 cm (26.97 inches, aspect ratio 16/9 = 1.78) Gamma: 2.2 Digital signal Max video bandwidth: 540 MHz HorizSync 31-140 VertRefresh 29-75 # Monitor preferred modeline (60.0 Hz vsync, 133.3 kHz hsync, ratio 16/9, 163 dpi) ModeLine "3840x2160" 533.25 3840 3888 3920 4000 2160 2163 2168 2222 -hsync +vsync # Monitor supported CEA modeline (60.0 Hz vsync, 67.5 kHz hsync, ratio 16/9, 81 dpi) ModeLine "1920x1080" 148.5 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
