Ubuntu

Input reset and Flickering

Asked by Proc

Hi, I've the effect of flickering and input reset. For example I'm pressing FN+F5 to lower the brightness. This has an immediate effect, but the dialog showing the current brightness is coming up a little bit later. If I hold the button, the dialog is to "slow" and the brightness is reset to the start.

I've also written a complete description of my problem here: https://askubuntu.com/q/921840/696366

Kubuntu,
KDE Plasma: 5.8.6
KDE Frameworks: 5.34.0
QT Version: 5.6.1
Kernel: 4.8.0-53-generic

Question information

Language:
English Edit question
Status:
Expired
For:
Ubuntu Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

What is the output of:

sudo lshw -C display

Thanks

Revision history for this message
Proc (proc) said : 		#2

Desktop PC:

  *-display
       description: VGA compatible controller
       product: Juniper XT [Radeon HD 5770]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master
cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:27 memory:d0000000-dfffffff
memory:fdfc0000-fdfdffff ioport:ee00(size=256) memory:fdf00000-fdf1ffff

----------------------------------

Laptop:

  *-display
       description: VGA compatible controller
       product: G96M(GeForce 9650M GT)
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master
cap_list rom
       configuration: driver=nouveau latency=0
       resources: irq:31 memory:fb000000-fbfffff
memory:d0000000-dfffffff memory:f8000000-f9ffffff ioport:cc00(size=128)
memory:c0000-dffff

-----------------------------------

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#3

You are using the open source driver. Does the proprietary driver make it work OK?

Revision history for this message
Proc (proc) said : 		#4

For the AMD-Machine the AMD driver just creates a big black-screen, I can only use the ALT-F1 console then.
The Nvidia-Laptop has a complete other problem, using the NVIDIA card driver enhances the performance but also leads to freezes after some minutes of video, every time you force-restart the machine it'll freeze even sooner. So they're no option.

Revision history for this message
Launchpad Janitor (janitor) said : 		#5

This question was expired because it remained in the 'Open' state without activity for the last 15 days.