Re: Psychedelic GUI after stable update to buster

[hobie@rumormillnews.com]

> hobie, on 2019-07-17:
>> I did the edit you suggested - changing the *.si to *.cik on that
second
>> readeon reference - but can't tell if anything was affected by it.
Psychedelic colors still return on leaving the desktop and coming back
to
>> it, and output of inxi -Gxxxz also appears the same:
>> Graphics:
>>   Device-1: AMD Kaveri [Radeon R7 Graphics] vendor: ASUSTeK
>>   driver: N/A bus ID: 00:01.0 chip ID: 1002:130f
>>   Display: x11 server: X.Org 1.20.4 driver: ati,vesa
>>   unloaded: fbdev,modesetting,radeon resolution: 1600x900~N/A
>>   OpenGL: renderer: llvmpipe (LLVM 7.0 128 bits)
>>   v: 3.3 Mesa 18.3.6 compat-v: 3.1 direct render: Yes
>> Also, I've moved all files from /etc/modprobe.d to a backup directory;
their absence does not appear to have made any difference, either.
> Good Day,
> It seems that some more information is needed to have a clue
> about what is going on with that driver loading.  Would it be
> possible to run the following commands and publish the result?
> 	$ dpkg -l | grep -iE 'amd-graphics|amdgpu|\<ati\>|fglrx|radeon' $ sudo
dmesg | grep -iE 'amd-graphics|amdgpu|\<ati\>|fglrx|radeon'

Thanks, Etienne. :)  Here's the output:

dpkg -l | grep -iE 'amd-graphics|amdgpu|\<ati\>|fglrx|radeon'
ii  firmware-amd-graphics                                       20190114-1
                                 all          Binary firmware for AMD/ATI
graphics chips
ii  libdrm-amdgpu1:amd64                                        2.4.97-1
                                 amd64        Userspace interface to
amdgpu-specific kernel DRM services -- runtime
ii  libdrm-radeon1:amd64                                        2.4.97-1
                                 amd64        Userspace interface to
radeon-specific kernel DRM services -- runtime
ii  radeontop                                                   1.1-2
                                 amd64        Utility to show Radeon GPU
utilization
ii  xserver-xorg-video-amdgpu
18.1.99+git20190207-1                       amd64        X.Org X server --
AMDGPU display driver
ii  xserver-xorg-video-ati                                      1:19.0.1-1
                                 amd64        X.Org X server -- AMD/ATI
display driver wrapper
ii  xserver-xorg-video-mach64                                   6.9.6-1
                                 amd64        X.Org X server -- ATI Mach64
display driver
ii  xserver-xorg-video-r128                                     6.12.0-1
                                 amd64        X.Org X server -- ATI r128
display driver
ii  xserver-xorg-video-radeon                                   1:19.0.1-1
                                 amd64        X.Org X server -- AMD/ATI
Radeon display driver

- - -

dmesg | grep -iE 'amd-graphics|amdgpu|\<ati\>|fglrx|radeon'
[    0.340065] smpboot: CPU0: AMD A10-7860K Radeon R7, 12 Compute Cores
4C+8G (family: 0x15, model: 0x38, stepping: 0x1)
[    1.927704] [drm] VGACON disable radeon kernel modesetting.
[    1.927756] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[    2.085794] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu
kernel modesetting.
[   10.423460] [drm] VGACON disable radeon kernel modesetting.
[   10.423512] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[   10.859252] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu
kernel modesetting.