[Bug 104168] [KBLR] [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=104168

--- Comment #4 from Pengyu.Ma <mapengyu at gmail.com> ---
It can be reproduced on new Thinkpad X1 Carbon 6th:

logs:
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254635] i915
0000:00:02.0: HDMI-A-1: EDID is invalid:
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254638]         [00]
BAD  00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254639]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254640]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254641]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254641]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254642]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254643]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:20 u-ThinkPad-X1-Carbon-6th kernel: [ 4460.254644]         [00]
BAD  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Jan 17 13:44:56 u-ThinkPad-X1-Carbon-6th kernel: [ 4495.691252] do_trap: 14
callbacks suppressed
Jan 17 13:44:56 u-ThinkPad-X1-Carbon-6th kernel: [ 4495.691257] traps:
unity-settings-[2867] trap int3 ip:7fd2c6d9da5b sp:7fff492b5b80 error:0 in
libglib-2.0.so.0.4800.2[7fd2c6d4d000+10f000]
Jan 17 13:46:08 u-ThinkPad-X1-Carbon-6th kernel: [ 4568.235116] traps:
unity-settings-[7346] trap int3 ip:7f8e278a3a5b sp:7fffbe71cd80 error:0 in
libglib-2.0.so.0.4800.2[7f8e27853000+10f000]
Jan 17 13:46:47 u-ThinkPad-X1-Carbon-6th kernel: [ 4607.021203] [drm] Reducing
the compressed framebuffer size. This may lead to less power savings than a
non-reduced-size. Try to increase stolen memory size if available in BIOS.
Jan 17 13:47:00 u-ThinkPad-X1-Carbon-6th kernel: [ 4619.928434] traps:
unity-settings-[7403] trap int3 ip:7f5411004a5b sp:7ffcf4570a90 error:0 in
libglib-2.0.so.0.4800.2[7f5410fb4000+10f000]
Jan 17 13:47:05 u-ThinkPad-X1-Carbon-6th kernel: [ 4624.969103] [drm] Reducing
the compressed framebuffer size. This may lead to less power savings than a
non-reduced-size. Try to increase stolen memory size if available in BIOS.
Jan 17 13:47:10 u-ThinkPad-X1-Carbon-6th kernel: [ 4629.640154] traps:
unity-settings-[7455] trap int3 ip:7ff901cc5a5b sp:7fff43917760 error:0 in
libglib-2.0.so.0.4800.2[7ff901c75000+10f000]
Jan 17 13:47:30 u-ThinkPad-X1-Carbon-6th kernel: [ 4650.078915] [drm] Reducing
the compressed framebuffer size. This may lead to less power savings than a
non-reduced-size. Try to increase stolen memory size if available in BIOS.
Jan 17 13:47:31 u-ThinkPad-X1-Carbon-6th kernel: [ 4651.111816]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
Jan 17 13:47:31 u-ThinkPad-X1-Carbon-6th kernel: [ 4651.111883]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
Jan 17 13:47:40 u-ThinkPad-X1-Carbon-6th kernel: [ 4659.497593] traps:
unity-settings-[7468] trap int3 ip:7f793380ea5b sp:7ffcf09d49f0 error:0 in
libglib-2.0.so.0.4800.2[7f79337be000+10f000]

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20180117/a6da9a01/attachment.html>