<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - Flickering Screen on Dell XPS13 9350 [BISECT]" href="https://bugs.freedesktop.org/show_bug.cgi?id=94593#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - Flickering Screen on Dell XPS13 9350 [BISECT]" href="https://bugs.freedesktop.org/show_bug.cgi?id=94593">bug 94593</a> from <a class="email" href="mailto:thomas.bonfort@gmail.com" title="thomas bonfort <thomas.bonfort@gmail.com>"> thomas bonfort</a> <pre>enable_psr=2 still flickers with 4.4.0-16. unable to try latest 4.4.0-17 as X doesn't start with it. dmesg|grep i915 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-16-generic i915.enable_psr=2 i915_bpo.enable_psr=2 root=UUID=432cb01b-c9c7-4cb0-8129-5c0abadbf9f8 ro quiet splash vt.handoff=7 [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-16-generic i915.enable_psr=2 i915_bpo.enable_psr=2 root=UUID=432cb01b-c9c7-4cb0-8129-5c0abadbf9f8 ro quiet splash vt.handoff=7 [ 1.540320] [drm] Finished loading i915/skl_dmc_ver1.bin (v1.26) [ 1.566144] [drm] Initialized i915_bpo 1.6.0 20160214 for 0000:00:02.0 on minor 0 [ 1.820091] i915_bpo 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 3.962877] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo]) [ 191.798099] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun</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>