[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
*** This bug is a duplicate of bug 1550779 *** https://bugs.launchpad.net/bugs/1550779 ** This bug has been marked a duplicate of bug 1550779 [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
I'm also on Stealth late 2016 (QHD). So far, I survived using i915.enable_rc6=0 until that parameter was removed from newer kernels, then I switched to using intel_idle.max_cstate=4. I still wish someone would find the real root cause of this issue. Today, I noticed the flickering stops completely when I do "rmmod nvme" (booted into usb live ubuntu). Anyone knows how these 2 drivers can possibly affect each-other? The flickering also temporarily stops while I'm writing a disk image to the nvme ssd. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
Same here. 4.18.11 on Arch and Stealth late 2016 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: ubuntu Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
The issue is still present on arch. Both on 4.18.5.arch1-1 and 4.14.67-1-lts. It somewhat seems worse on the latest kernel (more frequent flickers). i915.edp_vswing=2 does not fix the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
** No longer affects: archlinux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1739936] Re: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun?
For anyone with this laptop... Upgrade to a newer kernel and install the latest Intel i915 firmware files. When the kernel installs it will warn you about which files you need. This will get rid of that FIFO underrun problem. (I chose drm-intel-nightly) Most importantly adding i915.edp_vswing=2 to the kernel parameters should fix the terrible screen flickering. I hope this helps! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739936 Title: Screen flickering on Razer Blade Stealth (Late 2017) - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1739936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
