<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [IVB bisected] *ERROR* uncleared fifo underrun on pipe A" href="https://bugs.freedesktop.org/show_bug.cgi?id=95736#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [IVB bisected] *ERROR* uncleared fifo underrun on pipe A" href="https://bugs.freedesktop.org/show_bug.cgi?id=95736">bug 95736</a> from <a class="email" href="mailto:tomeu@tomeuvizoso.net" title="Tomeu Vizoso <tomeu@tomeuvizoso.net>"> Tomeu Vizoso</a> <pre>(In reply to Fabian Henze from <a href="show_bug.cgi?id=95736#c12">comment #12</a>) > (In reply to Tomeu Vizoso from <a href="show_bug.cgi?id=95736#c11">comment #11</a>) > > Chris, Fabian, Sedat, would you be able to find out what are the programmed > > latencies at boot (the ones inherited from the BIOS), > > If you give me some hints how to do that, I would. It should be already printed, at least in recent kernels. intel_print_wm_latency will tell. Could you please attach your dmesg with drm.debug=0x1f? > > and if a tweak similar to the one below helps avoid it? > > <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/</a> > > ?id=e95a2f7509f5219177d6821a0a8754f93892ca56 > > Since I am using a sandy bridge notebook (1080p resolution if that matters), > this tweak should already be in place, right? You are right, could you please find out what's the smaller value that when passed to ilk_increase_wm_latency() will avoid the messages?</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 QA Contact for the bug.</li> </ul> </body> </html>