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Drivers & Software

Journeyman III

Dual monitors via DP on Sapphire RX 5700 XT crash linux boot up- Ideas

As per subject, I am trying to use my computer with dual monitors via two DP connectors.

It  boots fine with one monitor, but the boot up crashes with two monitors soon after it enter the AMDGPU(OSS) driver with a 'timing error' and stack dump, then it is power button time.

The Os in Linux with kernel;

uame -a

 Linux system  5.10.0-7-amd64 #1 SMP Debian 5.10.40-1 (2021-05-28) x86_64 GNU/Linux.

The distro details are Devuan-chimaera (4.0?), which is effectively equivalent to one after Debian-bullseye.

Unfortunately as the card has only 4 DP sockets, I can not test a combination like 1 DP & 1HDMI.

Has any one been able to run dual monitors on the RX 5700 XT via Linux?

If so can they let me know which connectors they used and distro & version.

Hopefully FOSS.


{my name is a vestige of trying to get a amd 5700 HD working under catalyst}



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