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
