[Bug 94605] [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94605

Dominik Klementowski <dominik232 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |dominik232 at gmail.com

--- Comment #87 from Dominik Klementowski <dominik232 at gmail.com> ---
Created attachment 128001
  --> https://bugs.freedesktop.org/attachment.cgi?id=128001&action=edit
dmesg

I think I'm experiencing the same issue.
Screen flickers, it can be reduced by passing i915.rc6=0 and (or) i915.psr=0,
but not completely removed.

Having error messages like
[drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is invalid, remainder is
140

Weirdest thing are notices with no external screen connected, and DP-1 is my
VGA connector.
[ 4410.919992] [drm] HPD interrupt storm detected on connector DP-1: switching
from hotplug detection to polling

My hardware/software summary:
System:    Host: acer Kernel: 4.8.7-1-ARCH x86_64 (64 bit gcc: 6.2.1)
           Desktop: KDE Plasma 5.8.3 (Qt 5.7.0) Distro: Antergos Linux
Machine:   Device: laptop System: Acer product: Aspire E5-574 v: V1.14
           Mobo: Acer model: Zoro_SL v: V1.14 UEFI: Insyde v: V1.14 date:
03/04/2016
Battery    BAT1: charge: 17.7 Wh 71.9% condition: 24.7/25.0 Wh (99%)
           model: SANYO AL15A32 status: Discharging
CPU:       Dual core Intel Core i5-6200U (-HT-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9602
           clock speeds: max: 2700 MHz 1: 499 MHz 2: 499 MHz 3: 499 MHz 4: 499
MHz
Graphics:  Card: Intel HD Graphics 520 bus-ID: 00:02.0
           Display Server: X.Org 1.18.4 driver: N/A Resolution:
1920x1080 at 60.05hz
           GLX Renderer: Mesa DRI Intel HD Graphics 520 (Skylake GT2)
           GLX Version: 3.0 Mesa 13.0.1 Direct Rendering: Yes
Audio:     Card Intel Sunrise Point-LP HD Audio driver: snd_hda_intel bus-ID:
00:1f.3
           Sound: Advanced Linux Sound Architecture v: k4.8.7-1-ARCH
Network:   Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
           driver: r8169 v: 2.3LK-NAPI port: 3000 bus-ID: 01:00.0
           IF: enp1s0 state: down mac: <filter>
           Card-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter
           driver: ath10k_pci bus-ID: 02:00.0
           IF: wlp2s0 state: up mac: <filter>
Drives:    HDD Total Size: 253.4GB (26.6% used)
           ID-1: /dev/sda model: Intenso_SSD_Sat size: 253.4GB
Partition: ID-1: / size: 19G used: 12G (61%) fs: ext4 dev: /dev/sda2
           ID-2: /home size: 213G used: 52G (25%) fs: ext4 dev: /dev/sda3
Sensors:   System Temperatures: cpu: 41.5C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 171 Uptime: 36 min Memory: 1669.3/7854.7MB Init: systemd
Gcc sys: 6.2.1
           Client: Shell (bash 4.4.01) inxi: 2.3.4

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