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<body><span class="vcard"><a class="email" href="mailto:dominik232@gmail.com" title="Dominik Klementowski <dominik232@gmail.com>"> <span class="fn">Dominik Klementowski</span></a>
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<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a>
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<td>dominik232@gmail.com
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605#c87">Comment # 87</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a>
from <span class="vcard"><a class="email" href="mailto:dominik232@gmail.com" title="Dominik Klementowski <dominik232@gmail.com>"> <span class="fn">Dominik Klementowski</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=128001" name="attach_128001" title="dmesg">attachment 128001</a> <a href="attachment.cgi?id=128001&action=edit" title="dmesg">[details]</a></span>
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:
<a href="mailto:1920x1080@60.05hz">1920x1080@60.05hz</a>
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</pre>
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