I found that the latest drm-tip kernel for amd64 was at
https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2019-11-08/ as
the more recent ones had failed to compile according to the READMEs.

The 2019-11-08 kernel (5.4.0-994-generic) boots fine, but after logging
in, running a GUI application and some clicks the screen goes black, and
the kernel logs this:

[   24.557334] [TTM] Out of kernel memory
[   24.558380] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   24.559604] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (48, 1, 4096, -12)
[   24.561124] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   24.832000] [TTM] Buffer eviction failed
[   24.832011] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
[   24.832029] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   24.832170] [TTM] Buffer eviction failed
[   24.832174] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
[   24.832178] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   24.832226] [TTM] Buffer eviction failed
[   24.832229] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
[   24.832231] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   24.832400] [TTM] Buffer eviction failed
[   24.832404] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
[   24.832407] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   24.834433] [TTM] Buffer eviction failed
[   24.834437] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
[   24.834440] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.302729] [TTM] Out of kernel memory
[   25.303803] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.305162] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.355703] [TTM] Out of kernel memory
[   25.356727] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.358251] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.419575] [TTM] Out of kernel memory
[   25.421420] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.422819] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.438340] [TTM] Out of kernel memory
[   25.439412] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.441711] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.445922] [TTM] Out of kernel memory
[   25.446973] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   25.448748] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   25.450842] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   25.452379] [TTM] Out of kernel memory
[   25.453410] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   25.454580] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   25.456191] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   25.458033] [TTM] Out of kernel memory
[   25.459076] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   25.460748] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   25.464277] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   25.466437] [TTM] Out of kernel memory
[   25.467323] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   25.468465] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   25.470252] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   25.477931] [TTM] Out of kernel memory
[   25.478706] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   25.480124] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   25.483215] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   25.486972] [TTM] Out of kernel memory
[   25.486975] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.486978] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.487020] [TTM] Out of kernel memory
[   25.487022] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.487024] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.488495] [TTM] Out of kernel memory
[   25.488499] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.488502] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.489683] [TTM] Out of kernel memory
[   25.489685] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.489687] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.598292] [TTM] Out of kernel memory
[   25.599064] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.600132] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.690667] [TTM] Out of kernel memory
[   25.691405] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.692533] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   25.894663] [TTM] Out of kernel memory
[   25.895778] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   25.897241] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   26.098833] [TTM] Out of kernel memory
[   26.101030] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.104858] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate 
VRAM BO
[   26.302935] [TTM] Out of kernel memory
[   26.306070] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.506989] [TTM] Out of kernel memory
[   26.510331] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.711012] [TTM] Out of kernel memory
[   26.713961] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.914999] [TTM] Out of kernel memory
[   26.919032] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.960906] [TTM] Out of kernel memory
[   26.961632] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.968454] [TTM] Out of kernel memory
[   26.969154] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.974528] [TTM] Out of kernel memory
[   26.975309] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   26.977130] [TTM] Out of kernel memory
[   26.977813] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   26.979001] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   26.980757] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   26.982654] [TTM] Out of kernel memory
[   26.983287] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   26.984412] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   26.986082] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   26.987663] [TTM] Out of kernel memory
[   26.988305] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   26.989514] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   26.991128] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   26.992543] [TTM] Out of kernel memory
[   26.993185] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   26.994308] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   26.995894] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   26.998394] [TTM] Out of kernel memory
[   26.999098] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   27.000237] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   27.001928] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   27.004876] [TTM] Out of kernel memory
[   27.004878] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.004908] [TTM] Out of kernel memory
[   27.004910] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.006065] [TTM] Out of kernel memory
[   27.006068] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.006812] [TTM] Out of kernel memory
[   27.006814] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.088260] [TTM] Out of kernel memory
[   27.091488] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.206877] [TTM] Out of kernel memory
[   27.208755] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.410957] [TTM] Out of kernel memory
[   27.414951] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.614913] [TTM] Out of kernel memory
[   27.617897] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   27.818950] [TTM] Out of kernel memory
[   27.822014] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.022787] [TTM] Out of kernel memory
[   28.025057] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.226872] [TTM] Out of kernel memory
[   28.229850] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.434654] [TTM] Out of kernel memory
[   28.435410] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.441899] [TTM] Out of kernel memory
[   28.442875] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.449133] [TTM] Out of kernel memory
[   28.449935] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.455071] [TTM] Out of kernel memory
[   28.455903] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.457581] [TTM] Out of kernel memory
[   28.458280] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   28.459544] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   28.461475] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   28.463077] [TTM] Out of kernel memory
[   28.463694] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   28.464863] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   28.466665] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   28.468437] [TTM] Out of kernel memory
[   28.469095] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   28.470298] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   28.472032] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   28.473806] [TTM] Out of kernel memory
[   28.474430] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   28.475797] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   28.477363] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   28.479776] [TTM] Out of kernel memory
[   28.480511] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   28.481632] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   28.487734] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   28.490580] [TTM] Out of kernel memory
[   28.490582] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.490625] [TTM] Out of kernel memory
[   28.490627] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.491824] [TTM] Out of kernel memory
[   28.491826] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.492722] [TTM] Out of kernel memory
[   28.492724] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.574657] [TTM] Out of kernel memory
[   28.575437] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.694763] [TTM] Out of kernel memory
[   28.695847] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   28.898911] [TTM] Out of kernel memory
[   28.902893] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.102995] [TTM] Out of kernel memory
[   29.105887] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.307028] [TTM] Out of kernel memory
[   29.310501] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.511045] [TTM] Out of kernel memory
[   29.514141] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.714944] [TTM] Out of kernel memory
[   29.717755] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.918714] [TTM] Out of kernel memory
[   29.919652] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.926736] [TTM] Out of kernel memory
[   29.927618] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.934168] [TTM] Out of kernel memory
[   29.934890] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.939892] [TTM] Out of kernel memory
[   29.940694] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.942161] [TTM] Out of kernel memory
[   29.943102] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   29.944247] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   29.945794] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   29.947338] [TTM] Out of kernel memory
[   29.948020] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   29.949452] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   29.951138] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   29.952553] [TTM] Out of kernel memory
[   29.953215] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   29.954347] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   29.955936] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   29.957551] [TTM] Out of kernel memory
[   29.958180] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   29.959501] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   29.961077] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   29.963484] [TTM] Out of kernel memory
[   29.964145] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   29.965288] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   29.966909] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   29.969889] [TTM] Out of kernel memory
[   29.969891] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.969923] [TTM] Out of kernel memory
[   29.969924] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.971195] [TTM] Out of kernel memory
[   29.971197] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   29.972087] [TTM] Out of kernel memory
[   29.972088] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.049232] [TTM] Out of kernel memory
[   30.051098] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.174951] [TTM] Out of kernel memory
[   30.176238] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.378929] [TTM] Out of kernel memory
[   30.382609] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.582922] [TTM] Out of kernel memory
[   30.585873] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.787012] [TTM] Out of kernel memory
[   30.790098] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   30.990988] [TTM] Out of kernel memory
[   30.994096] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.195000] [TTM] Out of kernel memory
[   31.198005] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.398704] [TTM] Out of kernel memory
[   31.399411] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.400808] [TTM] Out of kernel memory
[   31.401496] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.409487] [TTM] Out of kernel memory
[   31.410294] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.415395] [TTM] Out of kernel memory
[   31.416134] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.417586] [TTM] Out of kernel memory
[   31.418214] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   31.419369] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   31.421027] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   31.422542] [TTM] Out of kernel memory
[   31.423245] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   31.424369] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   31.426018] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   31.427650] [TTM] Out of kernel memory
[   31.428275] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   31.429367] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   31.431076] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   31.432554] [TTM] Out of kernel memory
[   31.433253] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   31.434348] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   31.436098] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   31.438401] [TTM] Out of kernel memory
[   31.439085] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   31.440206] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   31.441863] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   31.444628] [TTM] Out of kernel memory
[   31.444644] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.444674] [TTM] Out of kernel memory
[   31.444676] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.445915] [TTM] Out of kernel memory
[   31.445918] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.446756] [TTM] Out of kernel memory
[   31.446758] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.521989] [TTM] Out of kernel memory
[   31.523215] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.646765] [TTM] Out of kernel memory
[   31.648020] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   31.850931] [TTM] Out of kernel memory
[   31.853914] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.054788] [TTM] Out of kernel memory
[   32.057247] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.258793] [TTM] Out of kernel memory
[   32.260851] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.462906] [TTM] Out of kernel memory
[   32.465221] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.666778] [TTM] Out of kernel memory
[   32.668505] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.869861] [TTM] Out of kernel memory
[   32.871296] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.872479] [TTM] Out of kernel memory
[   32.873226] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.877987] [TTM] Out of kernel memory
[   32.878817] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.883687] [TTM] Out of kernel memory
[   32.884422] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.885932] [TTM] Out of kernel memory
[   32.886587] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   32.887731] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   32.889296] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   32.890898] [TTM] Out of kernel memory
[   32.891522] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   32.892695] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   32.894251] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   32.895843] [TTM] Out of kernel memory
[   32.896460] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   32.897586] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   32.899239] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   32.900818] [TTM] Out of kernel memory
[   32.901448] qxl 0000:00:02.0: object_init failed for (16384, 0x00000001)
[   32.902570] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (16384, 1, 4096, -12)
[   32.904156] [drm:qxl_alloc_ioctl [qxl]] *ERROR* qxl_alloc_ioctl: failed to 
create gem ret=-12
[   32.906513] [TTM] Out of kernel memory
[   32.907168] qxl 0000:00:02.0: object_init failed for (3149824, 0x00000002)
[   32.908325] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM 
object (3149824, 2, 4096, -12)
[   32.909961] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: 
failed to create gem ret=-12
[   32.912679] [TTM] Out of kernel memory
[   32.912681] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.912720] [TTM] Out of kernel memory
[   32.912722] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.913917] [TTM] Out of kernel memory
[   32.913919] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.914751] [TTM] Out of kernel memory
[   32.914752] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   32.991985] [TTM] Out of kernel memory
[   32.993101] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   33.114774] [TTM] Out of kernel memory
[   33.116060] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   33.318855] [TTM] Out of kernel memory
[   33.321201] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   33.522990] [TTM] Out of kernel memory
[   33.526115] qxl 0000:00:02.0: object_init failed for (4096, 0x00000001)
[   33.730489] [TTM] Out of kernel memory

And the last two lines seem to go on repeating forever. Switching back
to 5.3.9-050309-generic for now.

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https://bugs.launchpad.net/bugs/1813620

Title:
  Xorg indefinitely hangs in kernelspace at least 2-3 times a day

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