http://bugzilla.opensuse.org/show_bug.cgi?id=1161843 Bug ID: 1161843 Summary: Screen flickering on latest Dell XPS 7390 with kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: sogal@opensuse.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- # Hardware Latest (nov 2019) Dell XPS 7390 with Intel i915 chipset # Kernel 5.4.10-1-default (OS Tumbleweed up to date) (same behavior was noticed with the 5.3.x kernels) # Relevant outputs ## lspci 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 02) ## lshw *-display description: VGA compatible controller product: UHD Graphics vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 logical name: /dev/fb0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb configuration: depth=32 driver=i915 latency=0 mode=1920x1080 visual=truecolor xres=1920 yres=1080 resources: iomemory:600-5ff iomemory:400-3ff irq:139 memory:604a000000-604affffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff ## /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-5.4.10-1-default root=UUID=55518547-6da3-4579-bdad-ecf3dbee0de4 splash=silent resume=/dev/disk/by-id/nvme-PC601_NVMe_SK_hynix_512GB_AD9BN4767124YBC32-part3 mitigations=auto quiet # Description
From time to time, the screen flickers, freezes and goes back to normal. The following message can be seen in the journal:
kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Sometimes this problem leads to the computer being unusable, the screen does not return to a normal state and switching to another TTY via Ctrl+Alt+Fx does not work. When the computer exits from sleep, the same behavior can be observed, the login screens' (provided by GDM in my case) colors are messed up. This affects only the build-in screen in my case. Even if an external monitor is connected it does not seem to be affected so far. # Possibly related bugs https://bugzilla.opensuse.org/show_bug.cgi?id=1156254 https://bugzilla.opensuse.org/show_bug.cgi?id=1132926 Please let me know if I can help by providing further information or testing some kernel options. -- You are receiving this mail because: You are on the CC list for the bug.