On 02/23/2015 06:01 PM, Pali Rohár wrote:
On Tuesday 24 February 2015 00:31:52 Mario Limonciello wrote: For older dell models (some old inspirions and maybe also latitude) it was possible to use undocumented DELLDIAG interface (which enter into SMM mode and call some functions) to enable that "RAW" mode. Now when you are discussing with us, do you have some information or can you comment (if it is not secret) that DELLDIAG SMM interface? In linux kernel we have for it driver (provides info about temperature, fan speed, power management, hotkeys, ...), but it use undocumented interface (and sometimes it has problems): https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/char/i8k.c
I don't have any more information I can share on this interface other than I wouldn't recommend to rely on it. It's generally not supposed to be used by the OS but only for diagnostic purposes from BIOS level diagnostic tools.
Nothing new. It is that problem with repeating keys which is fixed by last version of BIOS. I saw one E6440 model with preinstalled Ubuntu 12.04.2 and distributed with A08 BIOS (which had that problem). And this was very very annoying! You could imagine it, you buy new Latitude (business class pro notebook), you started it and on preinstalled OS, keyboard is not usable. Updating to A10 fixed it.
I'm sorry that this had actually made it out the door with a pre-installed machine, but I'm glad we were able to get it fixed in the field.
In this forum thread people reported that "repeating keys" problem for more models: http://en.community.dell.com/support-forums/laptop/f/3518/t/19593360?pi239031352=19
Yes, there is a support agent in that thread relaying those models to the BIOS team.
And it looks like (from what I'm reading) last version A10 of E6440 BIOS broke USB3.0 support.
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