<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - LCD flickering on Thinkpad T440p (Haswell) with kernel 4.6-rc4 (PSR enabled)" href="https://bugs.freedesktop.org/show_bug.cgi?id=95176#c47">Comment # 47</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - LCD flickering on Thinkpad T440p (Haswell) with kernel 4.6-rc4 (PSR enabled)" href="https://bugs.freedesktop.org/show_bug.cgi?id=95176">bug 95176</a> from <a class="email" href="mailto:dhinakaran.pandiyan@intel.com" title="Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>"> Dhinakaran Pandiyan</a> <pre>(In reply to ExecutorElassus from <a href="show_bug.cgi?id=95176#c44">comment #44</a>) > I have a new-ish MSI laptop. With no kernel option set (I'm using a gentoo > 4.6.3 kernel atm), the screen flickers rapidly, unless the mouse is moving > (in which case the screen is steady). If I set i915.enable_psr=0 in the > kernel options at boot, the screen does not flicker, but it also does not > update *at all* unless I move the mouse. That is: > > 1) type some commands and hit enter → nothing changes on screen > 2) move the mouse → the screen updates, showing that the commands have run > and showing output. > > Both of these states (ie, flickers, or no flicker but also no refresh, > unless the mouse is moving) render my laptop more or less unusable. What are > the other possible ways to fix this? Does danvert's patch resolve the issue? Danvet's patch won't help if PSR is not enabled. Can you do a `cat /sys/kernel/debug/dri/0/i915_edp_psr_status` to confirm PSR is not enabled?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>