This kernel seems to fix both this bug and https://bugs.launchpad.net/bugs/505271
Unfortunately when I open the lid I still see the display notification: "could not switch the monitor configuration / could not set the configuration for CRTC 64" and it feels that the PC is unresponsive for 4-5 seconds (slow keyboard input) this is the output of dmesg: [ 242.730766] [drm] TV-25: set mode NTSC 480i 0 [ 242.871973] [drm] TV-25: set mode NTSC 480i 0 [ 243.297676] dell-wmi: Unknown key ffd0 pressed [ 244.420988] [drm] LVDS-8: set mode 1440x900 28 [ 245.053534] Skipping EDID probe due to cached edid [ 245.138364] [drm] TV-25: set mode NTSC 480i 0 [ 245.279542] [drm] TV-25: set mode NTSC 480i 0 [ 245.384887] dell-wmi: Unknown key ffd1 pressed [ 247.043936] Skipping EDID probe due to cached edid [ 247.129234] [drm] TV-25: set mode NTSC 480i 0 [ 247.271197] [drm] TV-25: set mode NTSC 480i 0 [ 247.563727] Skipping EDID probe due to cached edid [ 247.648526] [drm] TV-25: set mode NTSC 480i 0 [ 247.789917] [drm] TV-25: set mode NTSC 480i 0 -- screen brightness won't come back when I open the lid https://bugs.launchpad.net/bugs/488328 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs