[SOLVED] xorg freezes -- probably amdgpu issue

boscaiolo · 2018-02-17 10:12:40

This is not strictly an Arch Linux problem, as the same behaviour occurs under any distro I have tried. I just thought this was likely the best community to advise me.

I have recently moved t a new generic box. Brief spec:
motherboard - MSI - A320M PRO-VD PLUS M
memory DDR4 - G.SKILL - Ripjaws V - 8Go (2x4Go) 2666Mhz
Processer - AMD - APU A-Series A8 9600
SSD - TRANSCEND - SSD230
HDD - SEAGATE - BarraCuda - 1 To ~
Graveur DVD - LG - GH24NSD1
2 monitors that have served me for years, a Dell 1280 x 1024 (DP-1 according to xrandr) and a Samsung 1920 x 1200 (DVI-D-1)

It is set up at the moment to run Arch, Debian, and SuSE. Under any of the OSs, when xorg blanks the screen, the system freezes. The Dell blanks and the Samsung digital freezes with the screen still displayed. It is generally possible to ssh onto the system but if I give for example a shutdown -r then the ssh is lost and nothing happens to the frozen system. The only way is the power switch. I have tried to cancel screen blanking, but the method I found did not work, or did not prevent the system crashing (I forget the details, but it involved setting three parameters to zero). Xorg is running in its default mode, with no xorg.conf .

I notice at boot the following messages "kvm disabled by bios" and "[drm:hwss_wait_for_blank_complete [amdgpu]] *ERROR* DC: Failed to blank crtc!"

The freezing problem unsurprisingly appears independent of wm -- I usually use i3, but have been forced to switch to icewm because 3D modelling is, for some reason, incompatible with a tiling wm.

I have googled for days for solutions but found none. I am beginning to think I shall have to buy a different graphics card. I would like advice on how to proceed, and if I am forced to change hardware, what should I choose to avoid getting trapped again.

Last edited by boscaiolo (2018-02-17 13:28:51)

seth · 2018-02-17 11:05:51

pass "amdgpu.dc=0" as kernel parameter

boscaiolo · 2018-02-17 13:26:26

Seth: thanks!

That eliminated the error message at boot and, more importantly, the two monitors both blank and recover correctly.

SOLVED -- I would edit the thread header if I could

seth · 2018-02-17 13:27:19

You actually can. Editing your initial post allows you to edit the subject as well.

boscaiolo · 2018-02-17 13:29:30

Thanks again!

Arch Linux

#1 2018-02-17 10:12:40

[SOLVED] xorg freezes -- probably amdgpu issue

#2 2018-02-17 11:05:51

Re: [SOLVED] xorg freezes -- probably amdgpu issue

#3 2018-02-17 13:26:26

Re: [SOLVED] xorg freezes -- probably amdgpu issue

#4 2018-02-17 13:27:19

Re: [SOLVED] xorg freezes -- probably amdgpu issue

#5 2018-02-17 13:29:30

Re: [SOLVED] xorg freezes -- probably amdgpu issue

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