similar. However, the extra patches (which aren't in coreboot master)
https://review.coreboot.org/c/coreboot/+/30987/ comments.
Do you still have this problem? Please try obtaining a "cbmem log" and
I'll try my best to help you
On Sat, Oct 12, 2019 at 8:40 PM Mike Banon <mikebdp2@gmail.com> wrote:
>
> Maybe this "cbmem log" is disabled at your coreboot .config, probably
> this setting is at General section of menuconfig, can't check right
> now. Share your .config if there are problems in finding
>
> On Sat, Oct 12, 2019 at 12:21 PM Grzegorz Bogdał
> <bogdal.grzegorz@tutanota.com> wrote:
> >
> > "Table not found."
> > Is it the output, or did I do something wrong? I'm back on the vendor BIOS right now.
> >
> >
> > Oct 12, 2019, 08:30 by mikebdp2@gmail.com:
> >
> > Please could you share your coreboot boot log after applying this
> > patch? Available with ./coreboot/util/cbmem utility
> >
> > On Fri, Oct 11, 2019 at 6:11 PM Grzegorz Bogdał
> > <bogdal.grzegorz@tutanota.com> wrote:
> >
> >
> > I've tried the patch from csb_patcher. I've applied only the lenovog505s_dgpu patch. Unfortunately, nothing changed.
> >
> >
> > Sep 14, 2019, 14:04 by mikebdp2@gmail.com:
> >
> > Kinky, have you tried a patch mentioned in my previous message? If
> > yes, what are the results?
> >
> > On Thu, Sep 12, 2019 at 2:31 PM Kinky Nekoboi <kinky_nekoboi@nekoboi.moe> wrote:
> >
> >
> > Also user of said board.
> >
> > For me only Nvidia GPUs work correctly.
> >
> > But using an older Version from 2018, because S3 works there.
> >
> >
> > Am 10.09.19 um 11:05 schrieb Mike Banon:
> > > Indeed, this patch -- https://review.coreboot.org/c/coreboot/+/31448 (
> > > src/device/pci: Add support for discrete VGA initialization and OpROM
> > > loading ) -- could help, because it will create the ACPI VFCT table
> > > for discrete RX 570 GPU instead of doing this for integrated HD 8670D.
> > > You could install it conveniently and securely with the help of
> > > csb_patcher.sh script (
> > > http://dangerousprototypes.com/docs/Lenovo_G505S_hacking#NEWS or
> > > https://review.coreboot.org/c/coreboot/+/33509 ).
> > >
> > > Although there will not be a VFCT for your integrated GPU, it should
> > > be working fine even without it, maybe at cost of a slightly higher
> > > power consumption. We have discovered that
> > >
> > > " ACPI VFCT - it's a table where AMD stores the Radeon video BIOS when
> > > the system is booted up in UEFI mode."
> > > " Where the ACPI VFCT Table is missing, Power States may not work properly. "
> > >
> > > so it seems without VFCT the integrated GPU is going to be at its' max
> > > TDP even while not loaded. For example, knowing that a total TDP of
> > > our G505S laptop's A10-5750M APU (CPU+GPU) does not exceed 35W and
> > > looking at the values for similar APUs at this table
> > > https://www.eteknix.com/amd-kaveri-a10-7850k-overclocking-analysis/7/
> > > (all values except Intel / RAM / OC), approximately for our A10-5750M
> > > it should be
> > >
> > > Idle | GPU load | CPU+GPU load
> > > 15.6W | 23.66W | 35W
> > > 44.5% | 67.6% | 100%
> > >
> > > We already knew that A10-5750M is 15W at idle, but have learned that
> > > GPU adds approximately 23.66W - 15.6W = about 8W while at its' max
> > > TDP. This G505S laptop comes with a 65W PSU, so with iGPU at it max
> > > TDP -- the laptop's battery life will be smaller in about 65/(65-8) =
> > > 1.12 times. However I've never compared the consumption difference of
> > > coreboot vs UEFI, would be nice if someone could test it in practice.
> > >
> > > Since this RX 570 discrete PCI-E card should have its' own flash chip
> > > for storing the AtomBIOS blob -- unlike our laptop's onboard discrete
> > > HD-8570M or R5-M230 -- I think in your case there should not be a need
> > > of storing the discrete GPU's AtomBIOS ROM at your coreboot BIOS in
> > > addition to the integrated one. However, if the advice above would not
> > > work, you could try extracting the discrete GPU's AtomBIOS , using
> > > either https://www.coreboot.org/VGA_support#How_to_retrieve_a_good_video_bios
> > > or https://github.com/g505s-opensource-researcher/g505s-atombios#description
> > > | https://mail.coreboot.org/pipermail/coreboot/2017-July/084660.html
> > > instruction.
> > >
> > > Best regards,
> > > Mike
> > >
> > > On Mon, Sep 9, 2019 at 10:04 PM awokd via coreboot
> > > <coreboot@coreboot.org> wrote:
> > >> Grzegorz Bogdał:
> > >>> Thank you. I'll check it out and report sometime in September whether the patches helped my case.
> > >> Please note, AFAIK they have only been tested on G505s's, so may need
> > >> some modification for your platform.
> > >>
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> >
> >