Si doppia grafica, INTEL + NVIDIA
$sudo lshw -c video
*-display
description: 3D controller
product: GM107M [GeForce GTX 960M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:144 memory:93000000-93ffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:4000(size=128) memory:94080000-940fffff
*-display
description: VGA compatible controller
product: HD Graphics 530
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 06
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 resolution=1920,1080
resources: irq:142 memory:92000000-92ffffff memory:a0000000-afffffff ioport:5000(size=64) memory:c0000-dffff
$sudo lshw -c cpu
*-cpu
description: CPU
product: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 6.94.3
serial: To Be Filled By O.E.M.
slot: U3E1
size: 3275MHz
capacity: 4005MHz
width: 64 bits
clock: 100MHz
capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust sgx bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d cpufreq
configuration: cores=4 enabledcores=4 microcode=234 threads=8
$sudo dmesg | grep -i drm
[ 1.456518] ata2.00: supports DRM functions and may not be fully accessible
[ 1.460224] ata2.00: supports DRM functions and may not be fully accessible
[ 2.400117] systemd[1]: Starting Load Kernel Module drm...
[ 2.417721] systemd[1]:
modprobe@drm.service: Deactivated successfully.
[ 2.417981] systemd[1]: Finished Load Kernel Module drm.
[ 3.254052] i915 0000:00:02.0: [drm] VT-d active for gfx access
[ 3.307319] i915 0000:00:02.0: [drm] Disabling framebuffer compression (FBC) to prevent screen flicker with VT-d enabled
[ 3.308170] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
[ 3.315834] i915 0000:00:02.0: [drm] [ENCODER:102:DDI B/PHY B] is disabled/in DSI mode with an ungated DDI clock, gate it
[ 3.356918] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[ 3.471573] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 3.561069] fbcon: i915drmfb (fb0) is primary device
[ 3.594075] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[ 4.155551] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1
[ 1208.968091] i915 0000:00:02.0: [drm] [ENCODER:94:DDI A/PHY A] is disabled/in DSI mode with an ungated DDI clock, gate it
[ 1208.968097] i915 0000:00:02.0: [drm] [ENCODER:102:DDI B/PHY B] is disabled/in DSI mode with an ungated DDI clock, gate it
[ 1209.304344] ata2.00: supports DRM functions and may not be fully accessible
[ 1209.308826] ata2.00: supports DRM functions and may not be fully accessible
[ 1222.345116] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[ 1275.946281] i915 0000:00:02.0: [drm] *ERROR* Atomic update failure on pipe A (start=4010 end=4011) time 429 us, min 1073, max 1079, scanline start 1068, end 1098
[ 1341.511265] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[ 1341.513504] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[ 2281.954381] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[ 8648.833944] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
[10060.256684] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[10085.407875] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
[10275.342016] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[10275.342029] i915 0000:00:02.0: [drm] Xorg[18049] context reset due to GPU hang
[10275.352222] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [18049]
[10291.697785] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[10291.697794] i915 0000:00:02.0: [drm] Xorg[18049] context reset due to GPU hang
[10291.706283] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [18049]
[10416.428188] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[10416.428197] i915 0000:00:02.0: [drm] Xorg[18049] context reset due to GPU hang
[10416.442327] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [18049]
[10443.304441] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[10455.754957] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[10455.754968] i915 0000:00:02.0: [drm] Xorg[21406] context reset due to GPU hang
[10455.761919] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [21406]
[10783.032549] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[10783.032561] i915 0000:00:02.0: [drm] Xorg[21406] context reset due to GPU hang
[10783.041232] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [21406]
[10809.645868] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
[11396.771106] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[11396.771118] i915 0000:00:02.0: [drm] Xorg[21406] context reset due to GPU hang
[11396.784108] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [21406]
[11408.859552] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[11507.062091] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
[11804.632911] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[11804.632921] i915 0000:00:02.0: [drm] Xorg[24380] context reset due to GPU hang
[11804.640865] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [24380]
[12035.539813] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out
[12035.539824] i915 0000:00:02.0: [drm] Xorg[24380] context reset due to GPU hang
[12035.553585] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [24380]
il DRM fa un po' di casino.
Comunque ho una traccia, sempre da /var/log/mssages
May 27 01:01:28 odino gnome-shell[24851]: Unhandled promise rejection. To suppress this warning, add an error handler to your promise chain with .catch() or a try-catch block around your await expression. Stack trace of the failed promise:
_loadFile@resource:///org/gnome/shell/ui/background.js:488:20
_load@resource:///org/gnome/shell/ui/background.js:518:14
_init@resource:///org/gnome/shell/ui/background.js:278:14
Background@resource:///org/gnome/shell/ui/background.js:234:4
getBackground@resource:///org/gnome/shell/ui/background.js:622:30
_createBackgroundActor@resource:///org/gnome/shell/ui/background.js:793:49
BackgroundManager@resource:///org/gnome/shell/ui/background.js:719:37
_createBackgroundManager@resource:///org/gnome/shell/ui/layout.js:461:27
_updateBackgrounds@resource:///org/gnome/shell/ui/layout.js:507:34
_monitorsChanged@resource:///org/gnome/shell/ui/layout.js:571:14
_init@resource:///org/gnome/shell/ui/layout.js:313:14
LayoutManager@resource:///org/gnome/shell/ui/layout.js:194:4
_initializeUI@resource:///org/gnome/shell/ui/main.js:210:21
start@resource:///org/gnome/shell/ui/main.js:175:5
@resource:///org/gnome/shell/ui/init.js:6:17
May 27 01:01:28 odino gnome-shell[24851]: Unhandled promise rejection. To suppress this warning, add an error handler to your promise chain with .catch() or a try-catch block around your await expression. Stack trace of the failed promise:
_loadFile@resource:///org/gnome/shell/ui/background.js:488:20
_load@resource:///org/gnome/shell/ui/background.js:518:14
_init@resource:///org/gnome/shell/ui/background.js:278:14
Background@resource:///org/gnome/shell/ui/background.js:234:4
getBackground@resource:///org/gnome/shell/ui/background.js:622:30
_createBackgroundActor@resource:///org/gnome/shell/ui/background.js:793:49
BackgroundManager@resource:///org/gnome/shell/ui/background.js:719:37
_createBackgroundManager@resource:///org/gnome/shell/ui/layout.js:461:27
_updateBackgrounds@resource:///org/gnome/shell/ui/layout.js:507:34
_monitorsChanged@resource:///org/gnome/shell/ui/layout.js:571:14
E qui ne parlano
https://bugs.launchpad.net/ubuntu/+sour ... ug/1965820
Potrebbe essere lo stesso fenomeno?