GUI responds slowly only on some systems.

worldsnexthero

Hi, using debian jessie system to install pyqt5==version5.12.3 GUI. On one similar system the GUI works fast without any issues.

On another system, the GUI is super slow - unsure of why it could be so?

On BOTH systems, i do get a warning (but this does not impact functionality):

qt.qpa.xcb: failed to initialize XRandr
qt.qpa.xcb: X server does not support XInput 2
Fontconfig warning: line 146: blank doesn't take any effect anymore. please remove it from your fonts.conf
qt.qpa.xcb: QXcbConnection: XCB error: 1 (BadRequest), sequence: 169, resource id: 53, major code: 131 (Unknown), minor code: 47

Since this message is seen on BOTH systems, I do not think this has anything to do with the slowness.

Any insight/tips?

SGaist

Hi,

Can you list the differences between these systems ?

worldsnexthero

Failing System Info:

description: Computer
    width: 64 bits
    capabilities: smbios-2.7 vsyscall32
  *-core
       description: Motherboard
       physical id: 0
     *-memory
          description: System memory
          physical id: 0
          size: 15GiB
     *-cpu
          product: Intel(R) Core(TM) i7-4820K CPU @ 3.70GHz
          vendor: Intel Corp.
          physical id: 1
          bus info: cpu@0
          size: 1296MHz
          capacity: 3900MHz
          width: 64 bits

Passing System Info

description: Computer
    width: 64 bits
    capabilities: smbios-2.8 vsyscall32
  *-core
       description: Motherboard
       physical id: 0
     *-memory
          description: System memory
          physical id: 0
          size: 62GiB
     *-cpu
          product: Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz
          vendor: Intel Corp.
          physical id: 1
          bus info: cpu@0
          size: 4343MHz
          capacity: 4600MHz
          width: 64 bits

SGaist

What about the graphics stack ?

worldsnexthero

I see.

On failling system:

*-display               
       description: VGA compatible controller
       product: GeForce GTX 750 Ti
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci
       version: a2
       width: 64 bits
       clock: 33MHz
       
  *-display
       description: 3D controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci
       version: a1
       width: 64 bits
       clock: 33MHz

On passing system:

 *-display               
       description: VGA compatible controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci
       version: a1
       width: 64 bits
       clock: 33MHz
  *-display
       description: VGA compatible controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci
       version: a1
       width: 64 bits
       clock: 33MHz

SGaist

Not using the same drivers ?