Linux 5.6.0-2 causes display corruption on Debian testing

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Linux 5.6.0-2 causes display corruption on Debian testing

Postby EoflaOE » 2020-06-05 18:01

I have installed Debian Buster to the old PC a few months ago, because the other distributions like Ubuntu stopped supporting 32-bit, and if it exists, it would not start because AMD Athlon XP 1500+ doesn't have SSE2. I then upgraded to testing because Buster has worked normally to see if the next version is stable before release. The graphics card on my old PC is AMD Radeon 9200 (RV280) series if that helps.

After the upgrade, it booted to the new Linux kernel, and I'm currently at Linux 5.6.0-2-686-pae. The terminal and Plymouth boot screen is fine, but whenever I start X in that Linux version, the background and the cursor is fine. However, buttons, menus, fonts, images, and everything else is distorted. To clarify, I mean by distorted that such elements have the transparent lines over them, making text unreadable and GUI unusable, except if I have memorized the order of the buttons.

If that is still not enough, the pictures will describe the distortion (I can't attach pictures because of internal server error):

1. https://i.imgur.com/9tiIBlW.jpg
2. https://i.imgur.com/Kis3HpV.jpg
3. https://i.imgur.com/MYFwaGi.jpg
4. https://i.imgur.com/ekRi0SR.jpg
5. https://i.imgur.com/HAm0IR1.jpg
6. https://i.imgur.com/m8OwQmt.jpg
7. https://i.imgur.com/1aEcUCX.jpg

For some reason, when I have used the Buster's kernel, which is 4.19.0-8-686-pae, it has no problems rendering everything on the X server (desktop). I have made sure that the radeon module is loaded according to the output of
Code: Select all
lsmod | grep radeon
:

Code: Select all
radeon               1363968  1
i2c_algo_bit           16384  1 radeon
ttm                    86016  1 radeon
drm_kms_helper        147456  1 radeon
drm                   372736  4 radeon,ttm,drm_kms_helper


I have looked up enough in Google, and it either gives me old threads about Radeon not working properly, or gives me the completely different threads about screen distortion in Linux distributions, which doesn't match the distortion in my case. Are there any possible fixes to this issue? Or is it a bug in the kernel? By the way, the kernel radeon module, the X11 radeon module, and the Mesa DRI radeon module all support my graphics card.
Old PC: Debian testing, Windows XP SP3
New PC: Windows 10 Pro 64-bit
Aspire 5315: Linux Mint, Windows XP SP3
Travelmate 5330: Debian Buster
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Re: Linux 5.6.0-2 causes display corruption on Debian testin

Postby stevepusser » 2020-06-06 05:24

So, what driver is it using in Bullseye? (install inxi, run "inxi -G")
The MX Linux repositories: Backports galore! If we don't have something, just ask and we'll try--we like challenges. New packages: Kodi 18.7, Strawberry 0.6.12, Pale Moon 28.10.0, Xscreensaver 5.44, Krita 4.3.0, Foliate 2.4.0
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Re: Linux 5.6.0-2 causes display corruption on Debian testin

Postby Head_on_a_Stick » 2020-06-06 10:20

Firmware?
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Debian buster-backports ISO image: for new hardware support
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Re: Linux 5.6.0-2 causes display corruption on Debian testin

Postby EoflaOE » 2020-06-06 11:30

@stevepusser Below output of inxi -G:

Code: Select all
Graphics:
  Device-1: AMD RV280 [Radeon 9200 SE] driver: radeon v: kernel
  Display: server: X.Org 1.20.8 driver: radeon resolution: 1440x900~60Hz
  OpenGL: renderer: Mesa DRI R200 (RV280 5964) X86/MMX+/3DNow!+/SSE DRI2
  v: 1.3 Mesa 19.3.3


@Head_on_a_Stick: I have the necessary firmware. That is firmware-amd-graphics version 20190717-2. I also have firmware-linux and firmware-linux-nonfree.
Old PC: Debian testing, Windows XP SP3
New PC: Windows 10 Pro 64-bit
Aspire 5315: Linux Mint, Windows XP SP3
Travelmate 5330: Debian Buster
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