<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [SNB] Page flips hang indefinitely, apparently waiting for interrupts that never happen" href="https://bugs.freedesktop.org/show_bug.cgi?id=75502#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [SNB] Page flips hang indefinitely, apparently waiting for interrupts that never happen" href="https://bugs.freedesktop.org/show_bug.cgi?id=75502">bug 75502</a> from <a class="email" href="mailto:simon@farnz.org.uk" title="Simon Farnsworth <simon@farnz.org.uk>"> Simon Farnsworth</a> <pre>It's definitely a new problem, and I've just seen it on IVB (i3-3220), too: # intel_reg_dumper | grep DSP DSPACNTR: 0xd8004400 (enabled) DSPABASE: 0x00000000 DSPASTRIDE: 0x00001e00 (120) DSPASURF: 0x019c8000 DSPATILEOFF: 0x00000000 (0, 0) DSPBCNTR: 0x58004400 (disabled) DSPBBASE: 0x00000000 DSPBSTRIDE: 0x00000a00 (40) DSPBSURF: 0x0085b000 DSPBTILEOFF: 0x00000000 (0, 0) DSPCCNTR: 0x00004000 (disabled) DSPCBASE: 0x00000000 DSPCSTRIDE: 0x00000000 (0) DSPCSURF: 0x00000000 DSPCTILEOFF: 0x00000000 (0, 0) PCH_DSPCLK_GATE_D: 0x10000000 PCH_DSP_CHICKEN1: 0xa0000000 PCH_DSP_CHICKEN2: 0x00000000 PCH_DSP_CHICKEN3: 0x00000024 # grep . /sys/kernel/debug/dri/0/i915_gem_pageflip Flip queued on pipe A (plane A) Stall check enabled, 1 prepares Old framebuffer gtt_offset 0x019c8000 New framebuffer gtt_offset 0x011b8000 No flip due on pipe B (plane B) No flip due on pipe C (plane C) This looks to me like the flip hasn't happened - DSPASURF is 0x19c8000, which matches old framebuffer gtt_offset. Note that the kernel doesn't have either of the patches from this bug on it.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>