On Fri, 2016-07-15 at 10:34 -0500, Larry Finger wrote: > On 07/15/2016 09:43 AM, Ville Syrjälä wrote: > > > > On Fri, Jul 15, 2016 at 04:27:27PM +0200, Daniel Vetter wrote: > > > > > > On Fri, Jul 15, 2016 at 8:55 AM, Linus Torvalds > > > <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > > > > > On Thu, 14 Jul 2016, Larry Finger wrote: > > > > > > > > > > To anyone keeping track of regressions in kernel 4.7, I call > > > > > your attention to > > > > > https://bugs.freedesktop.org/show_bug.cgi?id=96675. > > > > > > > > > > This bug causes driver i915 to fail to connect to the > > > > > display, and results in > > > > > a blank screen as soon as the kernel is loaded. The only way > > > > > to operate with > > > > > kernel 4.7 is to add "nomodeset" to the command line. The > > > > > problem was bisected > > > > > to commit f21a21983ef13a ("drm/i915: Splitting > > > > > intel_dp_detect"). > > > > Daniel? Jani? Time to revert? > > > Yup. Means that I'll get to revert a pile of patches (plus even > > > more > > > in -next), but that's what we get for not handling regressions > > > timely. > > > Dave poked me about the same bug already too. But will take a few > > > days > > > until the pull is in your inbox I guess. > > I attached a oneliner to the bug today, that I *think* should fix > > the > > problem. > After I checked out the problem commit and built that kernel with the > one-line > patch, the display works; however, mainline still fails. I am > currently > bisecting to find what other commit fails. At a minimum, we should be > able to > reduce the number of commits that need reverting. > > Larry I was seeing the same issue Linus reported but very sporadically. Assumed it was due to my wierd configuration - eDP + usb type c -> MST hub -> DVI KVM -> dual head HDMI. Checked out the one liner - works for me but I guess there are still other failures. Jim > > > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
