Display distorted at start

Asked by Alain Bastien


At startup my display is distorted.. I have to
- login a terminal (Ctrl+Alt+F2)
- sudo telinit 3
-enter password
- startx

each time on a fresh start

then it's good

How to resolve that ?

P.S. Laptop HP nx9420 Ubuntu 20.04

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actionparsnip (andrew-woodhead666) said :

What is the output of:

sudo lshw -C display


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actionparsnip (andrew-woodhead666) said :

Also, make sure you have the latest BIOS

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Alain Bastien (alainbastien) said :


My Laptop date "2006" HP nx9420 64bit 3GB RAM Intel® Core™2 CPU T7400 @ 2.16GHz × 2
Graphic ATI RV530

Ubuntu 20.10

When I kill the X11 with telinit 3 and fire up a Startx it's good.

But I need to do that after each fresh Start UP or reboot.

sudo lshw -C display yeilds

       description: VGA compatible controller
       product: RV530/M56-P [Mobility Radeon X1600]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:30 memory:e0000000-efffffff ioport:4000(size=256) memory:f4600000-f460ffff memory:c0000-dffff

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