-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Please disregard this thread. from the #coreboot IRC channel:
<francis7> lynxis, hi * redpill has quit (Ping timeout: 264 seconds) * redpill (~redpill@unaffiliated/redpill) has joined #coreboot <lynxis> 0x30 does volumecontrol. I've also written that down in http://www.coreboot.org/EC:lenovo/x201 <francis7> oh <lynxis> try to play with that using ectool -w <> -z <> <francis7> Yes, to see if that changes volume. <lynxis> you can try to read the disassemlbed acpi code. take a look on the dsdt. acpi asm is very easy to read. * siro has quit (Quit: Leaving.) <francis7> lynxis, confirmed <francis7> lynxis, I have this running: <francis7> sudo watch -n .1 ./ectool -i <francis7> When I mute (factory bios), 0x30 changes from 0x03 to 0x43 <francis7> When unmuting, it changes back to 0x03 <lynxis> on x201: it's 0x40 or 0x00 <francis7> The same also happens in coreboot. <francis7> However, on coreboot, no actual muting occurs. <lynxis> x201: the speaker got muted. <francis7> ok, wtf <francis7> I tested it on another X200 with coreboot <francis7> mute works <francis7> wtf <lynxis> francis7: can you send me a dump of the acpi with OEM bios? <francis7> lynxis, "acpidump > acpidump.log" ? <lynxis> acpidump -b dump_dir <francis7> -b outputs nothing <lynxis> it should dump everything into a directory <lynxis> sudo acpidump -b . <francis7> ok now it works <lynxis> francis7: 0x84 should be the fan speed <francis7> seems I already have your GPG key <francis7> (public one) <lynxis> 0xA0DF8604 fp: 390D CF78 8BF9 AA50 4F8F F1E2 C29E 9DA6 A0DF 8604 <francis7> yep * tlaurion ([email protected]) has joined #coreboot <francis7> lynxis, weird though <francis7> the mute didn't seem to work earlier. <francis7> maybe I was only testing it on headphones <francis7> even in factory bios, the mute only mutes the internal speakers built into the laptop <francis7> external speakers/headphones are not muted via that button <francis7> I apologize for wasting your time.... On 22/08/15 18:40, Francis Rowe wrote: > > > On 22/08/15 18:13, Alexander Couzens wrote: > >>> Would it help if I include logs here? If so, which logs? >> ectool will also show some timers, which are counting upwards in >> the dump. Last time I've looked at the ECDT (x201) it doesn't >> contain any additional information. There are multiple ways to >> provide the information saved in the ECDT. Coreboot is using the >> DSDT for that. > >> Let's say you know which byte is changing in the EC ram, what >> would you do than? > >> Best, lynxis > >> PS: http://www.coreboot.org/EC:lenovo/x201 > > > Here is the diff (from factory BIOS): > > user@user-ThinkPad-X200:~/Desktop$ diff -u ectool.log > ectool.mute.log --- ectool.log 2015-08-22 16:14:32.602441403 +0100 > +++ ectool.mute.log 2015-08-22 16:14:38.780364169 +0100 @@ -2,13 > +2,13 @@ > > 00: a6 05 a0 00 fe 96 00 00 1f 02 47 00 00 00 80 00 10: 00 00 ff ff > f4 3c 87 09 5b ff 83 04 ff ff 2d 00 -20: 00 00 00 00 00 00 00 60 00 > 00 00 00 00 00 00 80 -30: 07 00 02 00 30 04 00 00 00 00 20 10 00 50 > 00 00 +20: 00 00 00 00 00 00 00 df 00 00 00 00 00 00 00 80 +30: 47 > 00 02 00 30 04 00 00 00 00 20 10 00 50 00 00 40: 00 00 00 00 00 00 > 14 04 40 01 00 00 00 00 00 00 50: 00 c0 02 19 df 07 08 16 0e 0a 31 > 04 04 d0 07 48 60: 0d d8 0e cc 10 00 00 00 00 00 00 00 00 00 00 00 > 70: 00 00 00 00 00 12 30 80 27 32 80 2c 80 80 80 80 -80: 00 00 00 > 06 ce 0e 03 00 00 00 00 00 00 00 6c 00 +80: 00 00 00 06 e3 0e 03 00 > 00 00 00 00 00 00 6c 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 0x27 changes. 0x30 changes. 0x84 changes. > > Here is the diff from coreboot (on another X200, though, so > probably different EC version): > > user@user-ThinkPad-X200:~/Desktop$ diff -u ectool.log > ectool.mute.log --- ectool.log 2015-08-22 17:31:27.684144336 +0100 > +++ ectool.mute.log 2015-08-22 17:31:34.775508137 +0100 @@ -2,17 > +2,17 @@ > > 00: a6 04 a0 11 fe 96 00 00 1f 02 43 00 00 00 80 00 10: 00 00 ff ff > f4 3c 80 01 01 ff ff ff ff ff 00 00 -20: 00 00 00 00 00 00 00 2b 00 > 00 00 00 00 00 00 80 -30: 03 00 00 00 30 04 00 00 00 00 70 10 00 00 > 00 00 +20: 00 00 00 00 00 00 00 58 00 00 00 00 00 00 00 80 +30: 43 > 00 00 00 30 04 00 00 00 00 70 10 00 00 00 00 40: 00 00 00 00 00 00 > 14 04 42 01 00 00 00 00 00 00 50: 00 40 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 70: 00 00 00 00 00 12 30 80 30 2f 80 33 80 80 80 80 -80: 00 00 00 > 00 6c 0e 00 00 00 00 00 00 00 00 00 00 +80: 00 00 00 00 6a 0e 00 00 > 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -c0: 33 38 80 80 80 80 > 80 80 00 41 1a 00 00 00 00 00 +c0: 33 37 80 80 80 80 80 80 00 41 0d > 00 00 00 00 00 d0: 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > e0: 00 00 00 00 00 00 00 00 10 60 b9 06 04 2e 55 03 f0: 37 58 48 54 > 32 34 57 57 13 74 62 b4 13 74 61 9c > > 0x27 changes. 0x30 changes. 0x84 changes. > > Also on this dump, 0xc1 and 0xca change. > > I'm not currently sure what to make of this. > - -- Minifree Ltd, trading as Ministry of Freedom | Registered in England, No. 9361826 | VAT No. GB202190462 Registered Office: 19 Hilton Road, Canvey Island, Essex SS8 9QA, UK | Tel: +44 (0) 1268 857 837 | Web: http://minifree.org/ Use free software. 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