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Radeon/AMDGPU Updates For The Linux 4.8 Kernel

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  • reepca
    replied
    My brother's HP Carrizo a10-8700p laptop has been going through hell trying to keep the display from randomly shutting off (or at least, going black... backlight is still on) every couple of minutes (and then staying that way until reboot). Is that a problem that would be most likely fixed when the display code gets integrated, when I upgrade to 4.8 and get the new power management stuff, or in 2030 when the laptop gets coreboot support (I am not a fan of the HP bios at all)?

    I've tried upgrading to 4.8rc3 on arch linux (which itself was a pain to install for the first time with a wifi chipset with no open-source driver, a display that randomly shuts off, and the only available network being a college network that requires you to register the device - via a browser, of course), but it crashes 49 seconds in and I'm really not sure how to get the logs off of it - I don't know how systemd logging works or where to find the error messages that appear as it crashes. Plus, the only other kernel I can boot to will blackscreen the display every couple of minutes. It would feel wrong to complain when the problem persists in the final 4.8 release if I haven't even reported the problem...

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  • pcm720
    replied
    Originally posted by debianxfce View Post

    Amdgpu-pro works with kernel 4.7.0-rc5, use these patches in my post:
    https://www.phoronix.com/forums/foru...-distros/page4
    Thanks. I was able to build it with these patches, but there's still no HDMI audio.
    And then there are two lines in Xorg.0.log:
    [ 18.304] (II) AMDGPU(0): AMDGPU DDX hybrid version: 16.30.3
    [ 18.304] (EE) AMDGPU(0): Failed to open amdgpu hybrid version
    It seems that DAL doesn't work properly.
    Last edited by pcm720; 09 July 2016, 07:51 PM.

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  • Chewi
    replied
    Originally posted by pcm720 View Post
    drm-next-4.8-wip-dal hangs the system after X.org starts.
    Wasn't just me then!

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  • pcm720
    replied
    Originally posted by dungeon View Post
    What about lts kernel that is 4.4, sort of like Ubuntu:
    https://www.archlinux.org/packages/c..._64/linux-lts/
    that should be ideal currently to use on arch with pro driver + dkms i guess
    Same error on 4.4 LTS kernel.
    I installed Ubuntu MATE 16.04 on another partition, and HDMI audio works great there with AMDGPU-PRO 16.40 from SteamOS repo.

    Originally posted by Chewi View Post
    Come to think of it, does DAL actually work with the open driver stack or is it PRO only? Maybe that's why it kernel panicked?
    Yes, it works with drm-next-4.6-wip-dal on Tonga (R9 380) without AMDGPU-PRO, but I had graphical glitches with it.
    HDMI audio is missing in drm-next-4.7-wip-dal, and drm-next-4.8-wip-dal hangs the system after X.org starts.
    Last edited by pcm720; 08 July 2016, 10:10 PM.

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  • Chewi
    replied
    I'm missing HDMI audio too but I'm making do without for now. I did try drm-next-4.8-wip-dal last week but it kernel panicked. I don't mind it not being mainlined for the time being but it would be nice if it actually worked.

    Come to think of it, does DAL actually work with the open driver stack or is it PRO only? Maybe that's why it kernel panicked?

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  • dungeon
    replied
    Originally posted by pcm720 View Post
    AMDGPU-PRO has DAL in DKMS module, but it fails to build on Arch with Linux Kernel 4.6.3.
    What about lts kernel that is 4.4, sort of like Ubuntu:

    https://www.archlinux.org/packages/c..._64/linux-lts/

    that should be ideal currently to use on arch with pro driver + dkms i guess

    Leave a comment:


  • pcm720
    replied
    Originally posted by Veto View Post
    Are you sure there is a roadmap for ever getting it merged wholesale? Right now it seems DAL code is selectively slowly merged bit by bit as it is adapted to the current DRM code - which of course is a much more time consuming process. It might be the Right WayTM, but it will make people frustrated by the delays and be a reason for the AMDGPU Pro driver to exist for a long time ahead.

    My personal current craving is for HDMI audio on 285 Anyone know if AMDGPU Pro supports this?
    So that's why DAL branch of drm-next-4.8 hasn't been updated for six weeks?
    Lack of HDMI audio on Tonga (380) is basically the only reason stopping me from using Linux. I tried to use DAL, but the only working branch is drm-next-4.6-dal, and it has video glitches that make it practically impossible to use.
    AMDGPU-PRO has DAL in DKMS module, but it fails to build on Arch with Linux Kernel 4.6.3.
    Last edited by pcm720; 08 July 2016, 06:15 PM.

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  • Veto
    replied
    Some will be sad though, the AMDGPU material for Linux 4.8 doesn't contain the huge DAL display abstraction layer code
    Are you sure there is a roadmap for ever getting it merged wholesale? Right now it seems DAL code is selectively slowly merged bit by bit as it is adapted to the current DRM code - which of course is a much more time consuming process. It might be the Right WayTM, but it will make people frustrated by the delays and be a reason for the AMDGPU Pro driver to exist for a long time ahead.

    My personal current craving is for HDMI audio on 285 Anyone know if AMDGPU Pro supports this?

    Leave a comment:


  • atomsymbol
    replied
    Originally posted by mj13 View Post
    What is the status for the AMDGPU-PRO support for GCN 1.1 and GCN 1.0 cards with 4.8 kernel?
    The following does not answer your question, but your question reminded me about it:

    Non-pro amdgpu.ko-git + mesa-git + hawaii_k_smc.bin has good support for R9 390 (GCN 1.1). Performance is as good as radeon.ko-git + mesa-git + hawaii_k_smc.bin. However GCN 1.1 isn't on par with GCN 1.2 in amdgpu.ko yet: it allows the user to set the clocks on GCN 1.2 GPUs while setting clocks on GCN 1.1 GPUs is currently unsupported. radeontop is reporting memory usage with radeon.ko but does not report it with amdgpu.ko.
    Last edited by atomsymbol; 08 July 2016, 03:16 PM. Reason: Mention hawaii_k_smc.bin

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  • Dea1993
    replied
    "new power features for Carrizo/BR/Stoney hardware"

    OMG, maybe finally this new kernel will fix temperature problem with my A10 8700p?? i hope... (from kernel 4.2 to kernel 4.7rc6, the situation is really better, but still not perfect, i hope that with kernel 4.8, the temperature of my APU will be perfect (and i hope also that i will gain a performance boost)

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