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Thread: Unusable blank/artifacts screen after greeter

  1. #1

    Default Unusable blank/artifacts screen after greeter

    Hello,

    I recently upgraded from 42.3 to Tumbleweed and logging into my system is very unstable in that I can't get to my desktop. OS boot up gets to the lightdm-gtk-greeter and displays that interface without any issue. Problems start when I type in my credentials and hit enter, and they're usually a blank screen or the following artifacts:

    Captures of the artifacts post greeter:
    https://i.imgur.com/lhpUTdJ.jpg
    https://i.imgur.com/Y3jMZjW.jpg

    A ctrl+alt+del always works to force a restart. I briefly used the 4.10 kernel and did not experience these issues and I am now using the 4.16.6-1-default kernel.

    I use the following kernel parameters due to this article, since the boot up process usually hangs after "fb: switching to amdgpudrmfb from VEGA VGA":
    Code:
    radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1
    Some system info:
    Code:
    System:    Host: Spectre2 Kernel: 4.16.6-1-default x86_64 bits: 64 gcc: 7.3.1 Desktop: Xfce 4.12.4 (Gtk 2.24.31)
               Distro: openSUSE Tumbleweed 20180502
    Machine:   Device: desktop Mobo: ASRock model: X370 Taichi serial: N/A
    Graphics:  Card: Advanced Micro Devices [AMD/ATI] Hawaii PRO [Radeon R9 290/390] bus-ID: 2d:00.0
               Display Server: x11 (X.Org 1.19.6 ) driver: amdgpu
               Resolution: 2560x1080@60.00hz, 1920x1080@60.00hz, 1920x1080@60.00hz
               OpenGL: renderer: AMD Radeon R9 200 Series (HAWAII / DRM 3.23.0 / 4.16.6-1-default, LLVM 6.0.0)
               version: 4.5 Mesa 18.0.1 Direct Render: Yes
    The system intermittently starts properly about one in eight attempts, or sometimes will start when I spam ctrl+alt+del and it produces a xfce login splash instead of rebooting. However, I will experience the issues described above if I log out and attempt relogin. I wish I knew how to better describe the problem, I've searched as well as I could and spent all day yesterday troubleshooting this issue.

    Anybody have any guidance?
    Last edited by bluemoo; 08-May-2018 at 10:18. Reason: additional info

  2. #2
    Join Date
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    Default Re: Unusable blank/artifacts screen after greeter

    How did you upgrade?
    Repos involved ?
    Code:
    zypper lr -d
    ° Appreciate my reply? Click the star and let me know why.

    ° Perfection is not gonna happen. No way.

    http://en.opensuse.org/User:Knurpht
    http://nl.opensuse.org/Gebruiker:Knurpht

  3. #3

    Default Re: Unusable blank/artifacts screen after greeter

    Quote Originally Posted by Knurpht View Post
    How did you upgrade?
    Repos involved ?
    Code:
    zypper lr -d
    Upgraded via Online Upgrade, repos:
    Code:
    # | Alias                                | Name               | Enabled | GPG Check | Refresh | URI                                                 --+--------------------------------------+--------------------+---------+-----------+---------+-----------------------------------------------------
    1 | packman.inode.at-openSUSE_Tumbleweed | Packman Repository | Yes     | (r ) Yes  | Yes     | http://packman.inode.at/suse/openSUSE_Tumbleweed/   
    2 | repo-debug                           | repo-debug         | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/tumbleweed/repo/debug  
    3 | repo-non-oss                         | repo-non-oss       | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/tumbleweed/repo/non-oss
    4 | repo-oss                             | repo-oss           | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/tumbleweed/repo/oss    
    5 | repo-update                          | repo-update        | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/update/tumbleweed/

  4. #4

    Default Re: Unusable blank/artifacts screen after greeter

    I discovered, after typing in my user/pass at the greeter and experiencing the aforementioned issues, that I can hit ctrl+alt+del once and the artifacts disappear and my screens turn off. Providing some keyboard input turns them back on and I get the greeter once again. At that point, I am able to log into my desktop environment after entering my username/password again. This behaviour appears to be consistent.

    While I can get to a working desktop, I'd like to know what I'm doing incorrectly.

  5. #5
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    Default Re: Unusable blank/artifacts screen after greeter

    Well, your repo list is OK, nothing wrong with that. Please have a look at the compositor settings, or try disabling the desktop effects,
    ° Appreciate my reply? Click the star and let me know why.

    ° Perfection is not gonna happen. No way.

    http://en.opensuse.org/User:Knurpht
    http://nl.opensuse.org/Gebruiker:Knurpht

  6. #6
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    Default Re: Unusable blank/artifacts screen after greeter

    ... or, maybe even try switching to another Display Manager, see if problem goes away.

    ... and report back.
    "Take a Walk on a Sunny Day, Greet everyone along the way, and Make Somebody Smile, Today"
    Gerry Jack Macks"Walk On A Sunny Day" GerryJackMacks.net

  7. #7

    Default Re: Unusable blank/artifacts screen after greeter

    Quote Originally Posted by Fraser_Bell View Post
    ... or, maybe even try switching to another Display Manager, see if problem goes away.

    ... and report back.
    I switched to GDM (from lightdm) after the issue started in an attempt to resolve it. I've been using GDM the past few days and haven't had much difficulty getting to a working system. I just now switched back to lightdm, and then attempted to use sddm.

    Using lightdm required more effort to get to a working desktop - hitting ctrl+alt+del once after greeter was not effective and I had to reboot twice by spamming ctrl+alt+del. Using sddm proved to be the most difficult, with multiple reboots to get to a now working desktop.

    One thing that did not exist before the TW upgrade - I have to login twice. Initial login will take me to the desktop (when it works), and then about 15 seconds later I'll get kicked out of my desktop and back to greeter where Ill have to login again.

  8. #8
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    Default Re: Unusable blank/artifacts screen after greeter

    Quote Originally Posted by bluemoo View Post
    I switched to GDM (from lightdm) after the issue started in an attempt to resolve it. I've been using GDM the past few days and haven't had much difficulty getting to a working system. I just now switched back to lightdm, and then attempted to use sddm.

    Using lightdm required more effort to get to a working desktop - hitting ctrl+alt+del once after greeter was not effective and I had to reboot twice by spamming ctrl+alt+del. Using sddm proved to be the most difficult, with multiple reboots to get to a now working desktop.

    One thing that did not exist before the TW upgrade - I have to login twice. Initial login will take me to the desktop (when it works), and then about 15 seconds later I'll get kicked out of my desktop and back to greeter where Ill have to login again.
    I have seen that problem on a couple systems with lightdm, installing and switching to kdm on those systems fixed it.

    I have seen similar problems on several machines with sddm, and on those switching to lightdm would help some, switching to kdm on others helped them.

    Note, also, that sddm does not support VNC, if you find you want it.

    kdm is no longer officially supported, but it is in the repos, so you can find it in Yast software manager and install it, then switch to it.

    AFAICT, the problem has to do with specific graphics: a couple or more specific intels, certain amd chipsets, and ???

    As for the double-login problem, that rings a bell, so that has probably been dealt with in another thread or two in the forums, if you can find them.

    I do not seem to have very good search skills when hunting for a specific thread on the forums, though, which makes me quite jealous of a few of the others here who seem to be able to find such things almost instantly.
    "Take a Walk on a Sunny Day, Greet everyone along the way, and Make Somebody Smile, Today"
    Gerry Jack Macks"Walk On A Sunny Day" GerryJackMacks.net

  9. #9
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    Default Re: Unusable blank/artifacts screen after greeter

    OP seems to indicate use of three displays. How are they connected, in a DisplayPort chain? If it was mine I'd be asking about this in the xorg-driver-ati@lists.x.org mailing list, a possible regression in kernel or amdgpu driver. Have you tried using the modesetting Xorg driver? I kept the TW kernel-default-4.15.13 rpm here. Let me know if you want to see what it does.

  10. #10

    Default Re: Unusable blank/artifacts screen after greeter

    Quote Originally Posted by mrmazda View Post
    OP seems to indicate use of three displays. How are they connected, in a DisplayPort chain? If it was mine I'd be asking about this in the xorg-driver-ati@lists.x.org mailing list, a possible regression in kernel or amdgpu driver. Have you tried using the modesetting Xorg driver? I kept the TW kernel-default-4.15.13 rpm here. Let me know if you want to see what it does.
    My R9 290 has 4 connections; 1 DisplayPort, 1 HDMI, 2 DVI. Two monitors use DVI, the other hdmi. I haven't tried using the modesetting Xorg driver yet, and I'll examine that as well as asking that mailing list for guidance.

    Thank you for your suggestion.

    Quote Originally Posted by Fraser_Bell View Post
    I have seen that problem on a couple systems with lightdm, installing and switching to kdm on those systems fixed it.

    I have seen similar problems on several machines with sddm, and on those switching to lightdm would help some, switching to kdm on others helped them.

    Note, also, that sddm does not support VNC, if you find you want it.

    kdm is no longer officially supported, but it is in the repos, so you can find it in Yast software manager and install it, then switch to it.

    AFAICT, the problem has to do with specific graphics: a couple or more specific intels, certain amd chipsets, and ???

    As for the double-login problem, that rings a bell, so that has probably been dealt with in another thread or two in the forums, if you can find them.

    I do not seem to have very good search skills when hunting for a specific thread on the forums, though, which makes me quite jealous of a few of the others here who seem to be able to find such things almost instantly.
    Appreciate the info, Ill give a few other DMs a try as well. My forum search skills aren't anything to brag about, but I definitely have the motivation to find those threads.

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