FWIW, I filed a bug here on this issue, to have something to attach the output of various useful info https://bugs.freedesktop.org/show_bug.cgi?id=28746
On Thu, Jun 24, 2010 at 2:55 PM, Ben Guthro <ben.guthro+intel-...@gmail.com> wrote: > I posted a similar question to LKML yesterday, but perhaps this is a > better forum for this discussion, as it seemed to get lost amongst > many other non-graphics related discussions. > > I have a problematic machine, that I have traced the problem down to > what I think is an issue with the i915 detection of the LVDS on the > Ironlake chip. > > The machine in question is a Dell Latitude E6410 - i5 laptop, with the > intel Ironlake chip, and the failure condition is such that when the > boot sequence switches into KMS mode, the screen > goes black, and never comes back. > > It seems to be very similar to both > https://bugs.freedesktop.org/show_bug.cgi?id=28224 > and > https://bugs.freedesktop.org/show_bug.cgi?id=28070 > > However, I have tried all of the patches suggested on these bugs, to > no avail (yet) > > My base install is Ubuntu 10.04, and I've spun through a few kernels > to try to bisect the problem. Unfortunately, I've been unable to find > a kernel that works, but I have settled on linus' 2.6.35rc3 for > debugging this... > > I can get the machine to come up on an external display, if switched > at the BIOS screen...but /sys/class/card0 never shows an LVDS...and > dmesg doesn't seem to be throwing any errors. > > If you have any thoughts on what I might try next, in attempting to > debug this issue, I'd appreciate any pointers, as the intel cards > isn't my particular area of expertise, but am capable enough to read > the code... > > > Regards, > > Ben > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
