<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [ILK/SNB/IVB]igt/testdisplay causes *ERROR* Pipe A FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=74102#c28">Comment # 28</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [ILK/SNB/IVB]igt/testdisplay causes *ERROR* Pipe A FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=74102">bug 74102</a> from <a class="email" href="mailto:rauchwolke@gmx.net" title="Thomas Roller <rauchwolke@gmx.net>"> Thomas Roller</a> <pre>For me the kernel/system doesn't hang/crash but i get this two messages during bootup, no userland is loaded at this point in time: [ 3.089023] [drm:ironlake_irq_handler] *ERROR* CPU pipe A FIFO underrun [ 3.129151] [drm:intel_check_pch_fifo_underruns] *ERROR* pch fifo underrun on pch transcoder A # uname -a Linux onion 4.7.6 #8 SMP Fri Oct 7 00:18:41 CEST 2016 x86_64 GNU/Linux # lspci -v 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo 2nd Generation Core Processor Family Integrated Graphics Controller Flags: bus master, fast devsel, latency 0, IRQ 26 Memory at f0000000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at 5000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>