I've just upgraded to ubuntu 20.04 from 19.10.
The "problem" is while checking that the programs that I use daily are working, I find that Matlab gives me this error
javax.media.opengl.GLException: X11GLXDrawableFactory - Could not initialize shared resources for :0....
For fix it I have to double click on the icon -> open with dedicated GPU.
But now when I create a graph or a surf with Matlab, they become "poor quality and laggy ". In other words, they aren't as they were in the 19.10
I have the suspicion that my GPU isn't used at all. I have the impression that only the intel Skylake GT2 [HD Graphics 520] is working
Some info
lspci | grep -E 'VGA|Display|3D'
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07)
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon 520 Mobile] (rev 83)
lshw -c display | grep driver
configuration: driver=i915 latency=0
configuration: driver=radeon latency=0
LC_ALL=C lspci -v | grep -EA10 "3D|VGA" | grep 'prefetchable'
Memory at a0000000 (64-bit, non-prefetchable) [size=16M]
Memory at 90000000 (64-bit, prefetchable) [size=256M]
Why not in list the 2gb?
Let me know if there are other info that i could give.
[ plus question: when i watch video on youtube or shared screen on skype or similar i find a the high cpu usage ( 40 - 50 % ) and the fans start spinning hard ]
UPDATE
SEE THIS sudo lshw -C display
*-display
description: VGA compatible controller
product: Skylake GT2 [HD Graphics 520]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:129 memory:a0000000-a0ffffff memory:90000000-9fffffff ioport:6000(size=64) memory:c0000-dffff
*-display
description: Display controller
product: Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon 520 Mobile]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 83
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:130 memory:80000000-8fffffff memory:a1300000-a133ffff ioport:5000(size=256) memory:a1340000-a135ff
