March 2020 - coreboot - mail.coreboot.org

Re: F2A85-M - amdgpu fails, integrated GPU works fine
by Mike Banon July 22, 2020

July 22, 2020

> Jan 12, 2020, 14:43 by mikebdp2(a)gmail.com: > > Solution for your coreboot + discrete GPU problems like > > amdgpu kernel bo map failed [...] error -22 > amdgpu_vram_scratch_init failed [...] error -22 > fatal error in GPU initialization > > It turned out that a fix like > https://review.coreboot.org/c/coreboot/+/38215 ( /* Set to 0xD0 > instead of 0xE0 to avoid the PCI resource allocation problems. */ > InitPost->MemConfig.BottomIo = 0xD0; // at the beginning of > board_BeforeInitPost function at board's OemCustomize.c ) that worked > for HD6670, is not enough for a huge RX590 - which is huge in all > relations, but most importantly the memory ranges! > > To get RX590 working with ASUS A88XM-E, I had to decrease a BottomIo > even further - to 0xC0 - and also to reduce the > BLDCFG_UMA_ALLOCATION_SIZE at board's buildOpts.c from 0x2000 (512MB) > to 0x1000 (256MB), - to get this extra "0xD0-0xC0"=0x10000000 room. > And then it worked perfectly, at least with DRI_PRIME=1 ./Supertuxkart > GPU offloading: ultra settings on integrated - 4 or 5 fps, with > offloading - 60 fps. I'm sure this fix will work for your other RX 5** > as well, but don't know if I should be trying to commit it to master, > since it lowers the integrated GPU's shared memory. > > RX590 is the most powerful AMD GPU which does not contain a Platform > Security Processor aka PSP (yes, they've started adding this crap to > the GPUs as well, and newer Vega / RX 5*** are all contaminated - see > for yourself at freedesktop drm/amdgpu sources) . That's why it was > really important to get RX590 working. So happy it was possible, > thanks to you all ;-) > > On Mon, Jan 13, 2020 at 2:21 AM Grzegorz Bogdał <bogdal.grzegorz(a)tutanota.com> wrote: > Great job!: ) So, A10-6800k/FX-8xxx combined with RX 590 is probably the strongest x86 desktop without PSP/ME that we'll get in this reality? Yes, if you meant x86 desktop "supported by coreboot master" - regarding the CPUs ;-) Otherwise there is a supported-by-coreboot-4.11 M5A88-V motherboard with AM3+ (maybe can put FX-9590 there, if coreboot supports and without frying it?) and KGPE-D16 with its' two Opterons 6386 SE for a large desktop. Also, PDF [link 1] at page 12 says Carrizo is the "1st ARM Trustzone Capable Performance APU", that means Kaveri and its' refresh Godavari (i.e. A10-7890K) doesn't have a PSP. A88XM-E motherboard is FM2+ socket, so theoretically it could support Godavari A10-7890K. However Balazs wrote that AGESA of Kaveri is a blob (not good!) and there's uncertainty if could get it working without getting this APU for trying. As you see, there are CPUs more powerful than A10-6800K which don't have a PSP crap but their coreboot master support is questionable. And don't want to be without coreboot, since UEFI could have many holes and stuff like Computrace which doesn't need to rely on ME/PSP to function. So yes, A10-6800K seems to be the best at the moment. I got A10-6700 only because its' quite hard to find a new A10-6800K for a reasonable price and I read about bad overclockers who played too much with core voltages and cores deteriorate, becoming unstable even at stock speeds (so one needs to underclock then). A10-6700 is the most powerful with a locked multiplier, so less attractive to overclockers and may be safer to buy used. GPUs: yes, RX590 is the most powerful GPU without PSP ! (not considering NVidia at all because of their proprietary driver tricks and hostility towards the opensource) . Although there is RX600 series [link 2], they are hard to buy and lower performance. Unlike the majority of people (who don't care about performance), I actually hoped there would be another refresh of Polaris architecture - simply because no PSP, but doesn't seem there would be more Polaris high end GPUs at the moment. As for the most powerful RX590, I suggest those which have 8400MHz memory by default - i.e. Sapphire Nitro+ parts. For myself I got a cute [link 3] SKU 11289-07-20G aka "Sapphire Nitro+ RX 590 8GB AMD 50th Anniversary Gold Edition" (golden shroud) for about 250 USD. Aside from being an AMD fanboy collector's item, it's nearly identical to 11289-01-20G aka "Special Edition" (blue shroud) - however, there were multiple hardware revisions of a Special Edition card (could be distinguished by looking at their advanced P/N product number also printed), while this Gold Edition came much later and with it I think you're guaranteed to get the latest hardware revision. Now they are sold out at many countries, but if you're lucky you could find some - although maybe for the really inflated prices like [link 4] - that's ~320, about 30% more than I paid. If you know another RX590 which is more powerful out of the box, please tell - maybe I'd get a second one! In example, here's a pretty [link 5] PowerColor Red Devil RX 590 8GB, with a neat pentagram on its' back plate ;-) But its' memory is 8000MHz by default. [1] https://github.com/mikebdp2/coreboot-related/blob/master/PHILIPPINES_PS-DBM… [2] https://en.wikipedia.org/wiki/Radeon_600_series [3] https://www.sapphiretech.com/en/consumer/nitro-rx-590-8g-g5_gold_edition [4] 133178207205 - https://www.ebay.com/itm/SAPPHIRE-AMD-RADEON-RX-590-NITRO-AMD50-GOLD-EDITIO… [5] https://www.powercolor.com/product?id=1542008942

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Extended IvyBridge CPU configuration
by Lars Hochstetter July 16, 2020

July 16, 2020

Hi everyone, I'm looking for an option to configure my Intel IvyBridge CPU (enable / disable Hyperthreading, TurboBoost, set configurable TDP level etc.) using coreboot / nvramcui. My board is a Lenovo Thinkpad T430. So far, "only virtualization" is configurable and can not be enabled / disabled "in flight" but requires a rebuild of coreboot. Is anyone currently working on something similar? Is anything planned in that regard? Kind regards lhochstetter

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Booting Linux kernel with nosmp required on Lenovo T60 (ATI/AMD)
by Paul Menzel July 7, 2020

July 7, 2020

Dear coreboot folks, On the Lenovo T60 (with AMD/ATI graphics) the Linux kernel (4.9, 4.19, 5.3, 5.4) hangs after starting user space. As SeaBIOS, GRUB, payloads and FreeDOS work, I tried to limit the number of CPUs, and booting Linux with `nosmp` gave me a booting system. It worked with older coreboot versions, so I think it’s a regression. I am able to reproduce this with coreboot 4.11 and 4.11-422-g1a5c3bb7fa. Is somebody else seeing this issue? Maybe on some i945 desktop board, so it would be easier to bisect? Kind regards, Paul

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Re: libgfxinit quick starter guide
by Nico Huber June 26, 2020

June 26, 2020

Hi Michal, hi Matt, On 15.03.20 06:41, Matt B wrote: > You probably want to speak with Nico. He's a libgfxinit expert afaik. thanks for the heads up :) > On Wed, Mar 11, 2020 at 9:45 AM Michal Zygowski <michal.zygowski(a)3mdeb.com> > wrote: > >> Particularly I would like to implement Braswell support for native >> graphics init with libgfxinit. Angel is also looking forward to Braswell support. He mentioned it as a possible summer-of-code stretch goal (after Bay Trail support), IIRC. But applications are not written yet (start tomorrow). > I see the programming manuals from Intel >> are in place: >> https://01.org/linuxgraphics/documentation/hardware-specification-prms Alas, this is a pitfall for Braswell. The only part that matters for libgfxinit (information about the display engine) is 100% scrubbed away. If you look into the `Display` chapter, it only contains legacy VGA registers and audio verbs, nothing about display at all. And if you search for any of "hdmi", "lvds", "mipi", "dsi", or "lane" in the `Register` chapter: nothing :-/ So for Braswell, the only public information source I know is the Linux driver i915. It's the one exception btw. All other chips have a proper `Display` chapter. Hence also the idea to add Bay Trail support first. Even if it turns out to be much different, we could at least tell if Brasswell is closer to Bay Trail or the newer Haswell/Apollo Lake engine. >> What do I need to implement a new microarchitecture in libgfxinit? Where >> to start and what should I focus on? This may get a little longer... but I knew I'll have to write it down eventually. In Ada, the code is organized in so called `packages`. In the way they are used in libgfxinit, one can simply see them as compilation units. Each package has a specification (.ads) file with declarations and a body (.adb) with code. Much like a header and a c file. Packages form a hierarchy and the name of the file has to reflect the package name, including its parents (stupid, imho). Libgfxinit has two major mechanisms in place to support different hardware generations: 1. Alternative implementations of packages. These are organized in sub-directories (also because every alternative package body has to have the same file name). For instance, we have different implementations for the package `HW.GFX.GMA.Connectors` in g45/, ironlake/, haswell_shared/ (the latter is shared with all newer generations since Haswell). Having alternative implementations of packages also means we can't build one binary that supports all generations. Luckily, we don't have to, so far :) 2. Configuration flags that are tested in shared code. Much like we have `if (CONFIG(FOO_BAR))` in coreboot, we have `if Config.Foo_Bar then` in libgfxinit. All these flags are gathered in a single package `HW.GFX.GMA.Config` which keeps conditions on specific hardware generations in a central place. The file, `hw-gfx-gma-config.ads.template`, is pre-processed with some sed-foo (see `common/Makefile.inc`). The comment from `hw-gfx-gma-config.ads.template:99` on explains some of the rea- soning. How much code sharing makes sense depends on the similarity to other hardware generations. I wouldn't be surprised if Bay Trail and Braswell end up using the g45/ code (no PCH and probably pre DDI which was intro- duced with Haswell), but I don't know that yet. Some more about the central packages: HW.GFX* (excluding HW.GFX.GMA*) =============================== There's some vendor-agnostic code around. Mostly for DP training and EDID interpretation. HW.GFX.GMA ========== This exposes the primary interface (procedure Update_Outputs()) and contains the overall control flow for setting up displays. Update_Outputs() takes a list of configurations for each graphics pipeline (up to three) and will try to set things up according to the configuration. Assuming a pipe is unconfigured, roughly the following steps are performed (by procedure Enable_Output()): * Optionally select a link configuration (e.g. for DP, how many lanes at what rate). * Allocate a PLL for the pixel/DP clock. * Try to train the selected link configuration (if there is none, the loops simply run once): - Prepare output connectors (Pre_On) - Enable the graphics pipeline (On) - Finalize the output-connector configuration (Post_On) This usually doesn't need changes for new hardware. HW.GFX.GMA.Pipe_Setup* (formerly Display_Controller) ==================================================== At the heart of the display engine is the pipe setup. Here we configure the framebuffer format (how to interpret bytes from DRAM), image pro- cessing (e.g. scaling) and the `Transcoders` that turn the image into a continuous stream of bits (including blank times) for a given pixel clock. IOW, everything from the framebuffer to a modeline. This was called `Display_Controller` earlier (probably for historical Linux reasons) and is still inside `hw-gfx-gma.adb` (easy to fix, but I didn't care to so far). It's mostly configured by flags from the `Config` package. Configu- ration of scalers is often implemented very differently, but most of it didn't change much over the years. HW.GFX.GMA.Connectors ===================== The `Connectors` package dispatches the Pre_On() and Post_On() calls (before and after configuring the graphics pipeline) to sub-packages for the individual connector types. This is a bit subtle. In a sense, `Connectors` reflect the outputs of the CPU package. In the first generations with a PCH (Ironlake including Sandy and Ivy Bridge) the CPU didn't have actual display outputs (like VGA, LVDS, HDMI etc.) but only links to the PCH which contained the final outputs. Later, the final outputs went back onto the CPU die. So we have three very different versions of this package: * g45/ outputs are in the GMCH (or CPU if one would add Bay Trail, it shouldn't matter). * ironlake/ FDI links in the CPU and (most) outputs in the PCH. * haswell_shared/ newer outputs (DDI) in the CPU (no legacy interfaces like VGA/LVDS, and HDMI/DP configuration changed since g45/). If none of these match the hardware to be added, one would have to write a new one. HW.GFX.GMA.PLLs =============== Usually there are some similarities but often changes between hardware generations. HW.GFX.GMA.Power_And_Clocks =========================== This started with some setup for generation specific things that didn't find another place. Newer generations have configurable clocks and can turn individual parts of the display engine on and off. Older ones often just have to report a pre-set Core Display Clock (CDClk). To wrap it up, `Power_And_Clocks` and `PLLs` most often need changes for new hardware. Followed by `Connectors` if these changed significantly, but most often one can add some code controlled by `Config` flags here. And, not to forget, all flags in the `Config` package need to be checked how they should be set for the new hardware. >> >> tl;dr; >> Haven't written anything in SPARK/Ada yet. It will be a new adventure >> for me. Can be fun but can also be exhausting ;) Depends much on how you can cope with nagging compilers and related tools. Nico

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About support for my netbook
by Alif Ilhan May 12, 2020

May 12, 2020

I have attached all the log files releated to the dmidecode ectool inteltool etc. Can you read those out and tell me if it is possible to port coreboot to my netbook? If it is then how hard will it be?

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Re: Some problems with graphic display when using coreboot + seabios.
by Dalao April 19, 2020

April 19, 2020

> SeaBIOS is a legacy BIOS implementation, so no it can't boot UEFI boot media. Likewise, Tianocore is a pure UEFI implementation, and doesn't boot legacy boot media / legacy installed OSes. There should be a way to use SeaBIOS as a CSM for Tianocore, but currently it's not working / not implemented (I tried briefly awhile back but didn't have any luck). I tried to follow the steps to build tianocore for SeaBIOS https://www.coreboot.org/TianoCore But I get these errors. It says it can't found nmake.exe... Is this should be build on Windows? How to setup the environment? [dalao@pc tianocore2018]$ git clone --branch UDK2018 https://github.com/tianocore/edk2 Cloning into 'edk2'... remote: Enumerating objects: 66, done. remote: Counting objects: 100% (66/66), done. remote: Compressing objects: 100% (43/43), done. remote: Total 342725 (delta 35), reused 31 (delta 23), pack-reused 342659 Receiving objects: 100% (342725/342725), 286.48 MiB | 436.00 KiB/s, done. Resolving deltas: 100% (247240/247240), done. Updating files: 100% (15636/15636), done. [dalao@pc tianocore2018]$ cd edk2/ [dalao@pc edk2]$ cd BaseTools [dalao@pc BaseTools]$ export EDK_TOOLS_PATH=$(pwd) [dalao@pc BaseTools]$ cd ../ [dalao@pc edk2]$ . ./edksetup.sh BaseTools WORKSPACE: /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2 EDK_TOOLS_PATH: /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/BaseTools CONF_PATH: /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf Copying $EDK_TOOLS_PATH/Conf/build_rule.template to /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf/build_rule.txt Copying $EDK_TOOLS_PATH/Conf/tools_def.template to /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf/tools_def.txt Copying $EDK_TOOLS_PATH/Conf/target.template to /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf/target.txt [dalao@pc edk2]$ build -p DuetPkg/DuetPkgIa32.dsc Build environment: Linux-5.4.22-1-MANJARO-x86_64-with-glibc2.2.5 Build start time: 11:48:18, Mar.15 2020 WORKSPACE = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2 ECP_SOURCE = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/EdkCompatibilityPkg EDK_SOURCE = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/EdkCompatibilityPkg EFI_SOURCE = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/EdkCompatibilityPkg EDK_TOOLS_PATH = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/BaseTools CONF_PATH = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf POSTBUILD = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/DuetPkg/PostBuild.bat -p DuetPkg/DuetPkgIa32.dsc -b DEBUG -a IA32 -t MYTOOLS --conf=/home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Conf all Architecture(s) = IA32 Build target = DEBUG Toolchain = MYTOOLS Active Platform = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/DuetPkg/DuetPkgIa32.dsc Flash Image Definition = /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/DuetPkg/DuetPkg.fdf Processing meta-data ......... done! Building ... /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf [IA32] Building ... /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf [IA32] Building ... /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf [IA32] /bin/sh: Vcbinnmake.exe: command not found build.py... : error 7000: Failed to execute command Vc\bin\nmake.exe /nologo tbuild [/home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Build/DuetPkgIA32/DEBUG_MYTOOLS/IA32/MdePkg/Library/BasePcdLibNull/BasePcdLibNull] build.py... : error 7000: Failed to execute command Vc\bin\nmake.exe /nologo tbuild [/home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Build/DuetPkgIA32/DEBUG_MYTOOLS/IA32/MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull] build.py... : error 7000: Failed to execute command Vc\bin\nmake.exe /nologo tbuild [/home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/Build/DuetPkgIA32/DEBUG_MYTOOLS/IA32/MdePkg/Library/BaseMemoryLib/BaseMemoryLib] build.py... : error F002: Failed to build module /home/dalao/T440pCorebooting/tianocoreAsSeabiosPayload/tianocore2018/edk2/MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf [IA32, MYTOOLS, DEBUG] - Failed - Build end time: 11:48:28, Mar.15 2020 Build total time: 00:00:10 [dalao@pc edk2]$ > Personally, given that it's 2020, I'd not bother with legacy-installed OSes (or SeaBIOS) outside of use with emulation or if a special use case demands it. Esp given that it's easy enough to migrate Windows from legacy to UEFI. I tried the tianocore payload by selecting it and using all default settings. But I can't see anything like the SeaBIOS for me to select the boot media. But it does boot the archlinux in UEFI mode. I'm wondering is this the problem with my display (I have tried both "Use libgfxinit" and "Run VGA Option ROMs" with tianocore) or the tianocore has nothing to display to select boot media? Mar 15, 2020, 10:08 by matt.devillier(a)gmail.com: > On Sat, Mar 14, 2020 at 8:33 PM Dalao via coreboot > <coreboot(a)coreboot.org> wrote: > >> >> >> I have just corebooted T440p. Then I noticed some graphic display problems... >> >> Firstly I "Use libgfxinit" with "Legacy VGA text mode", insert a usb disk with archlinux's latest install image iso. I can see a text mode of archlinux's start screen. >> >> https://imgur.com/0QqQgJn >> >> But when I hit enter, it shows some log till "Triggering uevents" and then there is no display... >> >> https://imgur.com/CHI9jeE >> >> Then I tried "Use libgfxinit" with "Linear "high-resolution" framebuffer". I can see the graphic mode of archlinux's start screen, but again after I hit enter and see some logs, there is no display... Also, the display is not ideal, just at the top left corner not full screen. >> >> https://imgur.com/dvYLERu >> >> Also, under this setting, the nvramcui's display becomes bad. >> >> https://imgur.com/7YG0kOX >> > > unfortunately, many legacy bootloaders seem to assume a full array of > VESA video modes will be available, and fail less than gracefully when > that's not the case. With libgfxinit there is no ability to change > video modes -- all that's available is either the native panel > resolution (high resolution framebuffer) or VGA text mode. > >> Next I included pci8086,0416.rom vbios and tried "Run VGA Option ROMs" with "Legacy VGA text mode". This time, I can't see the archlinux start screen as shown above, there is no display at the beginning. But I can hit the enter blindly. Then after a while I can see archlinux is booting and the first line I can see is "Probing EDD (edd=off to disable)...ok" the archlinux starts ok. >> >> Lastly I also tried "Run VGA Option ROMs" with "Set framebuffer graphics resolution" with the default "framebuffer graphics resolution (1024x768 16.8M-color (8:8:8))" (although my T440p's resolution is 1920x1080). Also the Framebuffer mode is changed to "VESA framebuffer". I still can't see archlinux's start screen... >> >> >> How to make everything work like the vendor BIOS? i.e., I can see both the archlinux's start screen and it's booting. >> > > add the VGA BIOS. set the PCI IDs correctly. Set coreboot display init > to none, and let SeaBIOS run the VBIOS. > >> How to fix the nvramcui under "high-resolution" framebuffer"? >> > > will work properly with above settings > >> Also, as for now it appears seabios can't boot UEFI media. Tianocore by default can't boot Linux/Windows installed by legacy method (installed when using seabios). my goal is to add UEFI support through tianocore as seabios payload (or through tianocore's CSM compatibility support module? ). So that it can boot both UEFI installed Windows or legacy installed Windows like the vendor bios can do. How to achieve this? >> > > SeaBIOS is a legacy BIOS implementation, so no it can't boot UEFI boot > media. Likewise, Tianocore is a pure UEFI implementation, and doesn't > boot legacy boot media / legacy installed OSes. There should be a way > to use SeaBIOS as a CSM for Tianocore, but currently it's not working > / not implemented (I tried briefly awhile back but didn't have any > luck). > > Personally, given that it's 2020, I'd not bother with legacy-installed > OSes (or SeaBIOS) outside of use with emulation or if a special use > case demands it. Esp given that it's easy enough to migrate Windows > from legacy to UEFI. > >> >> _______________________________________________ >> coreboot mailing list -- coreboot(a)coreboot.org >> To unsubscribe send an email to coreboot-leave(a)coreboot.org >> > _______________________________________________ > coreboot mailing list -- coreboot(a)coreboot.org > To unsubscribe send an email to coreboot-leave(a)coreboot.org >

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OpenBSD won't install on an x220 Thinkpad with Coreboot
by Robert Milton April 12, 2020

April 12, 2020

I'm trying to get OpenBSD to install on an x220 Thinkpad with Coreboot/SeaBIOS but I'm running into two problems: the ethernet device doesn't work and OpenBSD doesn't detect my HDD. dmesg said em0 wouldn't load because the EEPROM had an invalid signature. I have no idea why OpenBSD doesn't see my HDD though. It's strange because everything works fine under Linux. And I cannot seem to mount a usb drive under the OpenBSD installer to attach dmesg errors. I originally posted this as a bug report to bug report mailing list but Theo said it would be better suited for Coreboot's and wasn't a bug in OpenBSD.

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Mainboard porting assistance
by Benjamin Doron April 10, 2020

April 10, 2020

Hi all, I own an Acer Aspire VN7-572G and have not been impressed with its OEM firmware. After discovering that it does not utilise Intel's Boot Guard technology, that several Skylake and Kabylake laptops (it has a Skylake chip, but I read that the platforms are similar) have received successful coreboot ports and reading the porting guide on the wiki, I figured that I could give porting coreboot to my laptop a shot. When I was done, I figured that I had an image that might boot so I flashed it to my laptop with a Raspberry Pi and a SOIC clip. However, here's what it does: a) It powers on quietly, as expected; b) The backlight and power LED light up; c) The fans spin up to high and then it stays that way. It does nothing else. The display is dark too. After 15 minutes and a second attempt, I figured that I could no longer blame anything on a long first boot-up and gave up and flashed back to stock. Now, in all honesty I should have tried first without cleaning Intel ME but I find it so much more likely that I did something wrong than that cleaning ME was the sole problem. Can anyone advise me on how to continue? My code is here: https://github.com/benjamindoron/coreboot

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Re: Could anyone successfully using T440p to boot Windows share your config or build output image?
by Dalao March 30, 2020

March 30, 2020

With the help from reddit, it works now! The reason is I need to remove the code added by this patch. https://review.coreboot.org/c/coreboot/+/38723/6/src/mainboard/lenovo/t440p… This patch is for dGPU, my model does not have dGPU. I didn't thought it would affect my model, but removed it Win10 works both using SeaBIOS or Tianocore. There are some issues with Win10: 1, The first thing I notice is there is no sound output. The system speaker device present in vendor BIOS is missing in coreboot: ACPI\PNP0800\4&D8657FD&0 2, Some FN-keys (FN-F4, Fn-F7 to F12) does not work. 3, Card reader's subsystemid is wrong and driver can't be installed. 4, Two more devices which were not present in vendor BIOS but are present in coreboot, and these driver can't not be installed: High Definition Audio Controller PCI\VEN_8086&DEV_8C20&SUBSYS_220E17AA&REV_05\3&B1BFB68... PCI Data Acquisition and Signal Processing Controller PCI\VEN_8086&DEV_0C03&SUBSYS_00000000&REV_06\3&B1BFB68... 5, There is a Diagnostic Policy Service kept running. 2020年3月28日 14:54 来自 coreboot(a)coreboot.org: > > I have almost tried everything these days trying to boot Windows 10 using T440p with coreboot, but still haven't succeed. > > I had created my Windows 10 installer usb by writing the en_windows_10_business_editions_version_1909_updated_jan_2020_x64_dvd_e9cb5542.iso to usb drive through Rufus, and checked this usb works on a T420 with coreboot. But this usb does not work on T440p. > > I have tried SeaBIOS, Tianocore, and with/without VGA BIOS but still not work. > When using SeaBIOS without VGA BIOS, I can see a loading bar at the bottom but then hanging there. > When using SeaBIOS with VGA BIOS, the backlight is on but the screen shows nothing. > > I tried extract data.vbt from vendor BIOS and replaced the one from source with it, still not work. > > I did see one post on reddit mentioned that he had been able to boot Windows 10. > https://www.reddit.com/r/coreboot/comments/enor0h/t440p_tianocore_and_windo… > I was wondering is my hardware different from others' T440p? Then I tried cherry-pick this patch (git fetch > https://review.coreboot.org/coreboot> refs/changes/90/30890/10 && git cherry-pick FETCH_HEAD) and using autoport to generate source of my T440p. Then I compared it with masters' source, but there is not much difference. > > I tried changed CPU and RAM but still not work. > > Since I make a fresh install of Windows on the T440p, I tried install it on T420 and then change the hard disk to T440p. It still does not work. > When I use Tianocore, the circle stopped spin and hangs at "Preparing Automatic Repair": > https://imgur.com/nY9wAQR > Sometimes it hangs shows a BSOD of "MACHINE CHECK EXCEPTION" But there is no further information > https://imgur.com/HKio1QY> (I tried to find if there are mce error logs under linux using rasdaemon but I get nothing > https://wiki.archlinux.org/index.php/Machine-check_exception> ) I also checked C:\Windows\minidump to see if there are BSOD dumps but there is none. > > I almost out of idea, I will attach all my files, original BIOS (a modded one with ME cleaned, advanced menu unlocked, and whitelist unlocked), auto port generated logs and sources, and the mrc.bin, data.vbt, defconfig, and also my build coreboot.rom. > https://mega.nz/#!TNlCFKjA!rXDhP5K4S8FZpSif8Ntj-NUGKML4kFYtwAG_70XTpsU > Could anyone help me with this? Could anyone successfully using T440p to boot Windows share the steps you did it and your config or your coreboot.rom (last 4MB)? >

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In need of porting assistance - HP Spectre x360 13-w0XX (kabylake)
by Evgenii Moz. March 29, 2020

March 29, 2020

Hello. For some time now I've been trying to port my laptop with no luck, yet. Here's what I did: • I recovered all the log's from the system, as per Motherboard_Porting_Guide and coreboot-collector. • Took apart my laptop and dumped eeproms via soldering off, it appears I have w25q80dv - 8mbit and w25q64fv - 64mbit. I made sure the dumps are valid, doublechecked via diff and purged the eeproms, system booted normally when I flashed the dumps back. • I made an amature coreboot config based on Mimoja's Razer Blade Stealth (2016) H2U which is now merged. I failed in adapting devicetree.cb and left it as is. The laptop showed no signs of life (dead PB and no lights) after externally flashing w25q64fv - 64mbit with coreboot combined with original Descriptor and stripped down ME via nconfig (probably should not have done that for 1st boot). Flashed the dumps back, no bork just yet =) • I have yet to create a position on Gerrit. P.S. not including the eeprom dumps, too heavy for a public mailing list. Will send on demand. I would be glad to receive any help, please do guide me. -- Mozhaaak

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