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Message-ID: <AANLkTim362_xv5FAyFSpdnAFUlILliEoGBW8_oZ4QVj1@mail.gmail.com> Date: Wed, 23 Jun 2010 13:16:51 -0400 From: Ben Guthro <ben@...hro.net> To: linux-kernel@...r.kernel.org Subject: i915: Dell E6410 Ironlake LVDS detection 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 quad core 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. 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 (including the 2.6.35 RC's, and an ubuntu build of drm-intel-next from the beginning of June) 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 connector...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 Guthro -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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