Same here: Elitebook 850 G1 Intel HD4400 / AMD 8750M Could this be an issue with hybrid graphics?
[ 13.717502] WARNING: CPU: 1 PID: 195 at /build/linux-4dBub_/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12324 check_crtc_state+0x2c5/0x440 [i915]() [ 13.717524] hp_wireless intel_smartconnect tpm_infineon parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq rtsx_pci_sdmmc amdkfd amd_iommu_v2 radeon i915 psmouse ttm ahci libahci i2c_algo_bit drm_kms_helper e1000e rtsx_pci drm ptp pps_core wmi video [ 13.717544] [<ffffffffc025e091>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] [ 13.717554] [<ffffffffc025e485>] check_crtc_state+0x2c5/0x440 [i915] [ 13.717566] [<ffffffffc0271f3e>] intel_modeset_check_state+0x20e/0x6b0 [i915] [ 13.717577] [<ffffffffc02730e7>] intel_crtc_set_config+0x4c7/0x580 [i915] [ 13.717603] [<ffffffffc02801ca>] intel_fbdev_pan_display+0x1a/0x60 [i915] [ 13.724200] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) [ 13.724266] WARNING: CPU: 1 PID: 195 at /build/linux-4dBub_/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12324 check_crtc_state+0x2c5/0x440 [i915]() -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492764 Title: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492764/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
