I just did a fresh install of Ubuntu Studio 26.04 LTS on my desktop system. Previously I’ve been running Ubuntu Studio 24.04 LTS. The driver for 24.04 is 580.126.09 and the 26.04 driver shows as 595.58.03. I have four displays arranged with three side by side horizontally and the fourth above them. The three are at resolutions of, from left to right, 1680x1050, 1920x1080, and 1680x1050 respectively. The one above them is 3840x2160.
The setup described above works well on the 24.04 system with all displays showing as running at 60hz. The 24.04 system runs on xorg and the 26.04 system runs on wayland.
The issues seem several. On the new system, the displayed rate is ~29.97 for all displays. Also, the 4k display does not display at all at 4k. If I set it to 1920x1080, though, it does display. Third, when I move the mouse between displays, there is a noticable hesitation in crossing between them. There are also occasional hesitations in movements within a single display’s display area. Lastly, at seemingly random times, the system will freeze with one or more displays turning to frozen video frazz.
The nouveau driver behaves similarly.
I have no idea how to proceed in solving these issues and would appreciate any input to that end.
Thanks,
BabaG1
From the Info Center:
Operating System: Ubuntu Studio 26.04
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Kernel Version: 7.0.0-14-generic (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-4930K CPU @ 3.40GHz
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3060
Manufacturer: Gigabyte Technology Co., Ltd.
uname -a :
Linux Rack-PC 7.0.0-14-generic #14-Ubuntu SMP PREEMPT_DYNAMIC Mon Apr 13 11:09:53 UTC 2026 x86_64 GNU/Linux
lsb_release -a:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 26.04 LTS
Release: 26.04
Codename: resolute
nvidia-smi:
Driver Version: 595.58.03
CUDA Version: 13.2
sudo lshw -C cpu :
*-cpu
description: CPU
product: Intel(R) Core™ i7-4930K CPU @ 3.40GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 6.62.4
slot: SOCKET 0
size: 3399MHz
capacity: 3900MHz
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 sys
call nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm
2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm cpuid_fault epb pti ssbd ibrs ibpb stibp tpr_shadow
flexpriority ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts vnmi md_clear flush_l1d cpufreq
configuration: cores=6 enabledcores=1 microcode=1070 threads=2
sudo lshw -C memory :
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: F7
date: 03/19/2014
size: 64KiB
capacity: 8MiB
capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial
int17printer acpi usb biosbootspecification uefi
*-cache:0
description: L1 cache
physical id: 5
slot: CPU Internal L1
size: 32KiB
capacity: 32KiB
capabilities: internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 6
slot: CPU Internal L2
size: 256KiB
capacity: 256KiB
capabilities: internal varies unified
configuration: level=2
*-cache:2 DISABLED
description: L3 cache
physical id: 7
slot: CPU Internal L3
size: 12MiB
capacity: 12MiB
capabilities: internal unified
configuration: level=3
*-memory
description: System Memory
physical id: 29
slot: System board or motherboard
size: 32GiB
*-bank:0
description: DIMM DDR3 1600 MHz (0.6 ns)
product: F3-2133C9-8GZ
vendor: Undefined
physical id: 0
serial: 00000000
slot: Node0_Dimm0
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:1
description: DIMM Synchronous [empty]
product: Dimm1_PartNum
vendor: Dimm1_Manufacturer
physical id: 1
serial: Dimm1_SerNum
slot: Node0_Dimm1
width: 64 bits
*-bank:2
description: DIMM DDR3 1600 MHz (0.6 ns)
product: F3-2133C9-8GZ
vendor: Undefined
physical id: 2
serial: 00000000
slot: Node0_Dimm2
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:3
description: DIMM Synchronous [empty]
product: Dimm3_PartNum
vendor: Dimm3_Manufacturer
physical id: 3
serial: Dimm3_SerNum
slot: Node0_Dimm3
width: 64 bits
*-bank:4
description: DIMM DDR3 1600 MHz (0.6 ns)
product: F3-2133C9-8GZ
vendor: Undefined
physical id: 4
serial: 00000000
slot: Node0_Dimm4
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:5
description: DIMM Synchronous [empty]
product: Dimm5_PartNum
vendor: Dimm5_Manufacturer
physical id: 5
serial: Dimm5_SerNum
slot: Node0_Dimm5
width: 64 bits
*-bank:6
description: DIMM DDR3 1600 MHz (0.6 ns)
product: F3-2133C9-8GZ
vendor: Undefined
physical id: 6
serial: 00000000
slot: Node0_Dimm6
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:7
description: DIMM Synchronous [empty]
product: Dimm7_PartNum
vendor: Dimm7_Manufacturer
physical id: 7
serial: Dimm7_SerNum
slot: Node0_Dimm7
width: 64 bits
sudo lshw -C video :
*-display
description: VGA compatible controller
product: GA106 [GeForce RTX 3060 Lite Hash Rate]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: /dev/fb0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=nvidia latency=0 mode=1680x1050 resolution=3840,2160 visual=truecolor xres=1680 yres=1050
resources: irq:63 memory:fa000000-faffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:c0000-dffff