[Answered] External displays not active during boot [12th Gen docked on Anker 777 TB4]

Hello all,

I have Arch Linux running on my 12th gen framework. It is connected to my Anker 777 Apex 12-in-1 TB4 dock, along with 2 external displays.

During the boot process, the displays are not recognized at all: I can’t see the BIOS, the disk encryption screen, or GRUB. Only when the system is booted, the screens are recognized and everything works fine.

This is quite inconvenient because I have to open the laptop lid to interact with the system during boot. Ideally, I could keep the lid closed and just press the docking station’s power button (powering on via AC).

In posts about similar problems on other laptops, I’ve found advice to make sure that in the BIOS settings something like “TB4 during boot” or “external displays during boot” is allowed, but the 12th gen BIOS has no such setting.

Does anyone else have this problem? Or any idea how to diagnose/solve it?

Thanks a lot and best regards!

1 Like

I’ve noticed something similar with my Thunderbolt 3 eGPU (12th gen framework). If it is connected before I begin booting, clinfo which detects OpenCL compatible devices does not detect my GPU.

clinfo output
Number of platforms                               1
  Platform Name                                   AMD Accelerated Parallel Processing
  Platform Vendor                                 Advanced Micro Devices, Inc.
  Platform Version                                OpenCL 2.1 AMD-APP (3513.0)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd cl_amd_event_callback 
  Platform Extensions function suffix             AMD
  Platform Host timer resolution                  1ns

  Platform Name                                   AMD Accelerated Parallel Processing
Number of devices                                 0

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  No platform
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   No platform
  clCreateContext(NULL, ...) [default]            No platform
  clCreateContext(NULL, ...) [other]              
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  No devices found in platform

If I instead connect my eGPU after the system has booted and is now at the gnome lockscreen, clinfo does detect my GPU.

clinfo output
Number of platforms                               1
  Platform Name                                   AMD Accelerated Parallel Processing
  Platform Vendor                                 Advanced Micro Devices, Inc.
  Platform Version                                OpenCL 2.1 AMD-APP (3513.0)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd cl_amd_event_callback 
  Platform Extensions function suffix             AMD
  Platform Host timer resolution                  1ns

  Platform Name                                   AMD Accelerated Parallel Processing
Number of devices                                 1
  Device Name                                     gfx1031
  Device Vendor                                   Advanced Micro Devices, Inc.
  Device Vendor ID                                0x1002
  Device Version                                  OpenCL 2.0 
  Driver Version                                  3513.0 (HSA1.1,LC)
  Device OpenCL C Version                         OpenCL C 2.0 
  Device Type                                     GPU
  Device Board Name (AMD)                         AMD Radeon RX 6700 XT
  Device PCI-e ID (AMD)                           0x73df
  Device Topology (AMD)                           PCI-E, 0000:06:00.0
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Max compute units                               20
  SIMD per compute unit (AMD)                     4
  SIMD width (AMD)                                32
  SIMD instruction width (AMD)                    1
  Max clock frequency                             2725MHz
  Graphics IP (AMD)                               10.3
  Device Partition                                (core)
    Max number of sub-devices                     20
    Supported partition types                     None
    Supported affinity domains                    (n/a)
  Max work item dimensions                        3
  Max work item sizes                             1024x1024x1024
  Max work group size                             256
  Preferred work group size (AMD)                 256
  Max work group size (AMD)                       1024
  Preferred work group size multiple (kernel)     32
  Wavefront width (AMD)                           32
  Preferred / native vector sizes                 
    char                                                 4 / 4       
    short                                                2 / 2       
    int                                                  1 / 1       
    long                                                 1 / 1       
    half                                                 1 / 1        (cl_khr_fp16)
    float                                                1 / 1       
    double                                               1 / 1        (cl_khr_fp64)
  Half-precision Floating-point support           (cl_khr_fp16)
    Denormals                                     No
    Infinity and NANs                             No
    Round to nearest                              No
    Round to zero                                 No
    Round to infinity                             No
    IEEE754-2008 fused multiply-add               No
    Support is emulated in software               No
  Single-precision Floating-point support         (core)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  Yes
  Double-precision Floating-point support         (cl_khr_fp64)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
  Address bits                                    64, Little-Endian
  Global memory size                              12868124672 (11.98GiB)
  Global free memory (AMD)                        12566528 (11.98GiB) 12566528 (11.98GiB)
  Global memory channels (AMD)                    6
  Global memory banks per channel (AMD)           4
  Global memory bank width (AMD)                  256 bytes
  Error Correction support                        No
  Max memory allocation                           10937905968 (10.19GiB)
  Unified memory for Host and Device              No
  Shared Virtual Memory (SVM) capabilities        (core)
    Coarse-grained buffer sharing                 Yes
    Fine-grained buffer sharing                   Yes
    Fine-grained system sharing                   No
    Atomics                                       No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       1024 bits (128 bytes)
  Preferred alignment for atomics                 
    SVM                                           0 bytes
    Global                                        0 bytes
    Local                                         0 bytes
  Max size for global variable                    10937905968 (10.19GiB)
  Preferred total size of global vars             12868124672 (11.98GiB)
  Global Memory cache type                        Read/Write
  Global Memory cache size                        16384 (16KiB)
  Global Memory cache line size                   64 bytes
  Image support                                   Yes
    Max number of samplers per kernel             29663
    Max size for 1D images from buffer            134217728 pixels
    Max 1D or 2D image array size                 8192 images
    Base address alignment for 2D image buffers   256 bytes
    Pitch alignment for 2D image buffers          256 pixels
    Max 2D image size                             16384x16384 pixels
    Max 3D image size                             16384x16384x8192 pixels
    Max number of read image args                 128
    Max number of write image args                8
    Max number of read/write image args           64
  Max number of pipe args                         16
  Max active pipe reservations                    16
  Max pipe packet size                            2347971376 (2.187GiB)
  Local memory type                               Local
  Local memory size                               65536 (64KiB)
  Local memory size per CU (AMD)                  65536 (64KiB)
  Local memory banks (AMD)                        32
  Max number of constant args                     8
  Max constant buffer size                        10937905968 (10.19GiB)
  Preferred constant buffer size (AMD)            16384 (16KiB)
  Max size of kernel argument                     1024
  Queue properties (on host)                      
    Out-of-order execution                        No
    Profiling                                     Yes
  Queue properties (on device)                    
    Out-of-order execution                        Yes
    Profiling                                     Yes
    Preferred size                                262144 (256KiB)
    Max size                                      8388608 (8MiB)
  Max queues on device                            1
  Max events on device                            1024
  Prefer user sync for interop                    Yes
  Number of P2P devices (AMD)                     0
  Profiling timer resolution                      1ns
  Profiling timer offset since Epoch (AMD)        0ns (Thu Jan  1 01:00:00 1970)
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
    Thread trace supported (AMD)                  No
    Number of async queues (AMD)                  8
    Max real-time compute queues (AMD)            8
    Max real-time compute units (AMD)             20
  printf() buffer size                            4194304 (4MiB)
  Built-in kernels                                (n/a)
  Device Extensions                               cl_khr_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_media_ops cl_amd_media_ops2 cl_khr_image2d_from_buffer cl_khr_subgroups cl_khr_depth_images cl_amd_copy_buffer_p2p cl_amd_assembly_program 

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  No platform
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   No platform
  clCreateContext(NULL, ...) [default]            No platform
  clCreateContext(NULL, ...) [other]              Success [AMD]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   gfx1031
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   gfx1031
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  Success (1)
    Platform Name                                 AMD Accelerated Parallel Processing
    Device Name                                   gfx1031

lspci on the other hand always detects my GPU, regardless of when the eGPU was connected.

As replied on the docking megathread, you can check out this config and see if you can make it work for your setup.

It comes with limitations though,- be careful about it!

1 Like

Adding my thoughts, but @Anachron has definitely pointed you in the right direction.

I’ve found some docks work as you’re describing while many do not. I generally don’t expect it myself as my big ask is that all the displays work once booted. Not ideal.

Hopefully the above linked post with the the grub config provides a path forward.

Thanks, @Anachron and @Matt_Hartley, for suggesting the workaround of setting the video device via GRUB. Unfortunately, it didn’t work for me.

What I tried:

  1. I fully booted my system, then connected the dock.
  2. I identified one of my external monitors’ ID as DP-5 by checking ls /sys/class/drm/ followed by cat /sys/class/drm/card0-DP-5.
  3. In the same way, I identified the internal monitor as eDP-1.
  4. I append video=eDP-1:D video=DP-5:D to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub as stated in the already mentioned stackexchange answer.
  5. Then I regenerated the boot image via sudo grub-mkconfig -o /boot/grub/grub.cfg.
  6. I shut my system down.
  7. With the dock still attached, I switched on the FrameWork via its power button.

Results:

  1. The internal monitor shows everything: first bios, grub and finally the booted system.
  2. The external monitor(s) connected to the dock show nothing.
  3. Even when fully booted, the monitors connected to the dock are not recognized by the system, I can’t activate them.
    Interestingly, the keyboard and mouse connected to the same dock do work in that state!
  4. Only after I disconnect and reconnect the dock, the external monitor(s) get recognized and start working.

I’d be happy for any further ideas and thoughts! :slight_smile:

If I understood it correctly you can’t do it like that. Can you try to only use D (digital output) on one of the monitors (external one) and just e (enable) the other one (internal)?

See example: GRUB_CMDLINE_LINUX="video=HDMI-1:D video=LVDS-1:e"

I agree with @Anachron, this example above is the general idea as this is operating outside of the normal scope of what would happen otherwise.

Okay, so I tried: video=DP-5:D video=eDP-1:e (external monitor “digital”, internal monitor “enabled”).

It had some effect, but not necessarily to the better: On boot, the internal monitor was on until GRUB, then switched off (as expected). However, the external monitor didn’t switch on, so I am without any monitor.

(Dis- and reconnecting the dock in that state get’s the external monitor to work again, so no big deal, but also no improvement over status quo.)