Hello everyone,
I hope you can help me with this.
I am using Ubuntu 20.04 and I installed matlab. Whenever I open matlab from the terminal I get the following error messages:
```
MATLAB is selecting SOFTWARE OPENGL rendering.
Gtk-Message: 18:21:17.708: Failed to load module "canberra-gtk-module"
MESA-LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
failed to load driver: iris
MESA-LOADER: failed to open kms_swrast: /usr/lib/dri/kms_swrast_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
failed to load driver: kms_swrast
MESA-LOADER: failed to open swrast: /usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
failed to load swrast driver
```
It is pretty clear what is happening since the folder usr/lib/dri does not exist. However, if you look into the suggested folder /usr/lib/x86_64-linux-gnu/dri I can find the required .so files there.
I am trying to set it up so that matlab automatically looks for the required files in /usr/lib/x86_64-linux-gnu/dri but I have not been able to do this.
This is the command that I used for this: LIBGL_DRIVERS_PATH=/usr/lib/x86_64-linux-gnu/dri LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/
When I try to run glxgears I get no problems at all. I see the gears turning and no error messages pop up.
The version of Matlab that I have is 64-bit.
When I type lshw I get the following info:
```
vishnu
description: Computer
width: 64 bits
capabilities: smp vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 8064MiB
*-cpu
product: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
size: 2665MHz
capacity: 4200MHz
width: 64 bits
capabilities: 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 tsc_known_freq 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 cat_l2 invpcid_single cdp_l2 ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves split_lock_detect dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid movdiri movdir64b fsrm avx512_vp2intersect md_clear flush_l1d arch_capabilities cpufreq
*-pci
description: Host bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 01
width: 32 bits
clock: 33MHz
*-display
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: iomemory:600-5ff iomemory:400-3ff irq:136 memory:6000000000-6000ffffff memory:4000000000-400fffffff ioport:4000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
*-generic:0
description: Signal processing controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 4
bus info: pci@0000:00:04.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: cap_list
configuration: driver=proc_thermal latency=0
resources: iomemory:600-5ff irq:16 memory:6001100000-600111ffff
*-generic:1
description: Signal processing controller
product: Intel Corporation
vendor: Intel Corporation
physical id: a
bus info: pci@0000:00:0a.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: cap_list
configuration: driver=intel-pmt latency=0
resources: iomemory:600-5ff irq:0 memory:6001130000-6001137fff
*-usb
description: USB controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 14
bus info: pci@0000:00:14.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: iomemory:600-5ff irq:121 memory:6001120000-600112ffff
*-memory UNCLAIMED
description: RAM memory
product: Intel Corporation
vendor: Intel Corporation
physical id: 14.2
bus info: pci@0000:00:14.2
version: 20
width: 64 bits
clock: 33MHz (30.3ns)
capabilities: cap_list
configuration: latency=0
resources: iomemory:600-5ff iomemory:600-5ff memory:6001140000-6001143fff memory:6001148000-6001148fff
*-network
description: Wireless interface
product: Intel Corporation
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
logical name: wlp0s20f3
version: 20
serial: 14:85:7f:69:27:0b
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.11.0-40-generic firmware=59.601f3a66.0 QuZ-a0-jf-b0-59.u ip=192.168.1.5 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: iomemory:600-5ff irq:16 memory:600113c000-600113ffff
*-serial:0
description: Serial bus controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 15
bus info: pci@0000:00:15.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=intel-lpss latency=0
resources: irq:27 memory:4017000000-4017000fff
*-serial:1
description: Serial bus controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 15.1
bus info: pci@0000:00:15.1
version: 20
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=intel-lpss latency=0
resources: irq:40 memory:4017001000-4017001fff
*-communication
description: Communication controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=mei_me latency=0
resources: iomemory:600-5ff irq:125 memory:6001145000-6001145fff
*-sata
description: SATA controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 17
bus info: pci@0000:00:17.0
version: 20
width: 32 bits
clock: 66MHz
capabilities: sata ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:122 memory:70900000-70901fff memory:70904000-709040ff ioport:4080(size=8) ioport:4088(size=4) ioport:4060(size=32) memory:70903000-709037ff
*-pci
description: PCI bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 20
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:120 ioport:3000(size=4096) memory:70800000-708fffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: enp1s0
version: 15
serial: 60:18:95:47:bb:54
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.11.0-40-generic duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.1.9 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:16 ioport:3000(size=256) memory:70804000-70804fff memory:70800000-70803fff
*-isa
description: ISA bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 20
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: latency=0
*-multimedia
description: Audio device
product: Intel Corporation
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 20
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=64
resources: iomemory:600-5ff iomemory:600-5ff irq:137 memory:6001138000-600113bfff memory:6001000000-60010fffff
*-serial:2
description: SMBus
product: Intel Corporation
vendor: Intel Corporation
physical id: 1f.4
bus info: pci@0000:00:1f.4
version: 20
width: 64 bits
clock: 33MHz
configuration: driver=i801_smbus latency=0
resources: iomemory:600-5ff irq:16 memory:6001144000-60011440ff ioport:efa0(size=32)
*-serial:3 UNCLAIMED
description: Serial bus controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 1f.5
bus info: pci@0000:00:1f.5
version: 20
width: 32 bits
clock: 33MHz
configuration: latency=0
resources: memory:70902000-70902fff
*-pnp00:00
product: PnP device PNP0c02
physical id: 2
capabilities: pnp
configuration: driver=system
*-pnp00:01
product: PnP device PNP0b00
physical id: 3
capabilities: pnp
configuration: driver=rtc_cmos
*-pnp00:02
product: PnP device INT3f0d
physical id: 4
capabilities: pnp
configuration: driver=system
*-pnp00:03
product: PnP device PNP0303
physical id: 5
capabilities: pnp
configuration: driver=i8042 kbd
*-pnp00:04
product: PnP device DLL0a23
physical id: 6
capabilities: pnp
configuration: driver=i8042 aux
*-pnp00:05
product: PnP device PNP0c02
physical id: 7
capabilities: pnp
configuration: driver=system
*-pnp00:06
product: PnP device PNP0c02
physical id: 8
capabilities: pnp
configuration: driver=system
*-pnp00:07
product: PnP device PNP0c02
physical id: 9
capabilities: pnp
configuration: driver=system
*-pnp00:08
product: PnP device PNP0c02
physical id: a
capabilities: pnp
configuration: driver=system
```
I appreciate any help you can provide.
Best,
Ps, I am not a programmer...he following error messages:
