FWIW, I seem to have the same problem after upgrading to Xubuntu 19.10 RC from ubuntu 19.04 today (Kernel 5.3.0), using a Thinkpad X395 (AMD Ryzen 5 PRO 3500U APU). The system seems to boot fine up to the login screen, but after login, the screen goes blank and the system apparently freezes. Setting 'nomodeset' on boot makes the problem disappear.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1838176 Title: Kernel 5.2.3 fails to fully boot on Lenovo 330s-15arr, black screen at login screen with cursor Status in linux package in Ubuntu: Confirmed Bug description: Was on 4.20, booted fine (with the boot option ivrs_ioapic[32]=00:14.0) Tried to boot 5.2.3 (but I believe this happened on 5.1.X too) It will boot to a certain extent, it does my disk password, i can see everything say "ok" when i do no quiet splash. But where it should go to the login screen I just see a single cursor Setting nomodeset lets me boot, looking at logs: Syslog Jul 27 21:28:58 kenji-mintop systemd[1]: Startup finished in 41.291s (kernel) + 8.383s (userspace) = 49.675s. Jul 27 21:28:59 kenji-mintop kernel: [ 50.535066] failed to write reg 1a6f4 wait reg 1a706 Jul 27 21:28:59 kenji-mintop NetworkManager[1082]: <info> [1564288139.7335] manager: NetworkManager state is now CONNECTED_GLOBAL Jul 27 21:28:59 kenji-mintop nm-dispatcher: req:4 'connectivity-change': new request (1 scripts) Jul 27 21:28:59 kenji-mintop nm-dispatcher: req:4 'connectivity-change': start running ordered scripts... Jul 27 21:29:09 kenji-mintop kernel: [ 60.615575] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:09 kenji-mintop kernel: [ 60.615662] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:09 kenji-mintop kernel: [ 60.615665] [drm] GPU recovery disabled. Jul 27 21:29:11 kenji-mintop zerotier-one[1984]: connect: Host is unreachable Jul 27 21:29:19 kenji-mintop kernel: [ 70.855956] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:19 kenji-mintop kernel: [ 70.856043] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:19 kenji-mintop kernel: [ 70.856047] [drm] GPU recovery disabled. Jul 27 21:29:20 kenji-mintop zerotier-one[1984]: message repeated 3 times: [ connect: Host is unreachable] Jul 27 21:29:22 kenji-mintop systemd-timesyncd[968]: Synchronized to time server 91.189.94.4:123 (ntp.ubuntu.com). Jul 27 21:29:23 kenji-mintop zerotier-one[1984]: connect: Host is unreachable Jul 27 21:29:29 kenji-mintop kernel: [ 81.095310] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:29 kenji-mintop kernel: [ 81.095397] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:29 kenji-mintop kernel: [ 81.095401] [drm] GPU recovery disabled. Jul 27 21:29:40 kenji-mintop kernel: [ 91.335557] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:40 kenji-mintop kernel: [ 91.335645] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:40 kenji-mintop kernel: [ 91.335648] [drm] GPU recovery disabled. Jul 27 21:29:41 kenji-mintop zerotier-one[1984]: message repeated 6 times: [ connect: Host is unreachable] Jul 27 21:29:43 kenji-mintop systemd[1]: Starting Stop ureadahead data collection... Jul 27 21:29:43 kenji-mintop systemd[1]: Started Stop ureadahead data collection. Jul 27 21:29:44 kenji-mintop zerotier-one[1984]: connect: Host is unreachable Jul 27 21:29:50 kenji-mintop kernel: [ 101.575935] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:50 kenji-mintop kernel: [ 101.576023] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:50 kenji-mintop kernel: [ 101.576027] [drm] GPU recovery disabled. Jul 27 21:30:00 kenji-mintop kernel: [ 111.815551] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:30:00 kenji-mintop kernel: [ 111.815638] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:30:00 kenji-mintop kernel: [ 111.815642] [drm] GPU recovery disabled. Kern.log Jul 27 21:28:56 kenji-mintop kernel: [ 47.231201] failed to write reg 1a6f4 wait reg 1a706 Jul 27 21:28:57 kenji-mintop kernel: [ 48.907343] failed to write reg 28b4 wait reg 28c6 Jul 27 21:28:58 kenji-mintop kernel: [ 49.772880] capability: warning: `zerotier-one' uses 32-bit capabilities (legacy support in use) Jul 27 21:28:59 kenji-mintop kernel: [ 50.535066] failed to write reg 1a6f4 wait reg 1a706 Jul 27 21:29:09 kenji-mintop kernel: [ 60.615575] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:09 kenji-mintop kernel: [ 60.615662] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:09 kenji-mintop kernel: [ 60.615665] [drm] GPU recovery disabled. Jul 27 21:29:19 kenji-mintop kernel: [ 70.855956] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:19 kenji-mintop kernel: [ 70.856043] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:19 kenji-mintop kernel: [ 70.856047] [drm] GPU recovery disabled. Jul 27 21:29:29 kenji-mintop kernel: [ 81.095310] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:29 kenji-mintop kernel: [ 81.095397] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:29 kenji-mintop kernel: [ 81.095401] [drm] GPU recovery disabled. Jul 27 21:29:40 kenji-mintop kernel: [ 91.335557] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:40 kenji-mintop kernel: [ 91.335645] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:40 kenji-mintop kernel: [ 91.335648] [drm] GPU recovery disabled. Jul 27 21:29:50 kenji-mintop kernel: [ 101.575935] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:29:50 kenji-mintop kernel: [ 101.576023] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:29:50 kenji-mintop kernel: [ 101.576027] [drm] GPU recovery disabled. Jul 27 21:30:00 kenji-mintop kernel: [ 111.815551] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3 Jul 27 21:30:00 kenji-mintop kernel: [ 111.815638] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 1361 thread Xorg:cs0 pid 1736 Jul 27 21:30:00 kenji-mintop kernel: [ 111.815642] [drm] GPU recovery disabled. Seems maybe something to do with "failed to write reg 1a6f4 wait reg 1a706" but unsure how to fix it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838176/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
