Hi Michael, On Wednesday 05 September 2012 13:26:06 Michael Rodríguez-Torrent wrote: > "STA" reports a status (whether the device is on or off). > > The method I'm looking at is actually "HSTA," which I can't find anywhere > in the ACPI spec. There is a separate "_STA" method, which I believe is the > one you're thinking of. HSTA just does a simple check and returns 1 or 0, > however, so I suppose it is still some sort of status method. Would > thinking that it could stand for "hybrid status" be too much of a leap? Only names starting with a _ are reserved in ACPI. HSTA is not a standard one, but from the many tables I have seen so far it is an internally used method. There is likely a _DSM or _STA method that calls this method (grep for it).
I have some tools on https://github.com/Lekensteyn/acpi-stuff that might help you reading your DSDT/SSDT information. In particular, view.html for collapsing/expanding nodes and get_methods for retrieving a list of methods in your DSDT/SSDT. get_method requires acpiexec which not shipped with Ubuntu. Download and build it from https://www.acpica.org/downloads/. Assuming that you have then put it somewhere in your $PATH, you should do something like: $ sudo acpidump > acpidump.txt $ acpixtract acpidump.txt # creates .dat files $ ./get_methods *.dat > methods.txt If you attach the acpidump.txt to your mail, I may look at it. >> Maybe https://wiki.archlinux.org/index.php/Dell_Studio_XPS_13 > > I have seen this, and it is one of the places that gave me the idea to try > setting the BusID. But, as I said, that did not work. I don't see anything > else on that page that is of use in addition to what I've tried -- was > there something that you noticed? I do not think that setting the BusID is magically going to change the display output, there must be some other trigger. > It seems like I need to find some way of making the dedicated GPU connect > to the LCD. Does anyone have any ideas? Maybe there's an ACPI method that > controls this connection? I'm not sure how to identify it if there is. Have a look at _DSM or MX** methods under your graphics ACPI handle. Regards, Peter _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : hybrid-graphics-linux@lists.launchpad.net Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
