That's great! It seems to be working on my systems too. The problem appears to be display-size related, as it was only affecting my systems with full HD monitors, and not those with smaller monitors. However, they were all getting the following error before the fix:

kernel: [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream !

That went away after restarting with exa acceleration. I'm also noticing some instability of a different sort on another system with a 4k monitor using the nouveau driver and glamor acceleration, so I'm wondering if I shouldn't disable glamor on that system too.

On 12/4/18 11:33 AM, Andreas Nowack wrote:
Hi Gilles!

Am 03.12.18 um 21:20 schrieb Gilles Detillieux:
Section "Device"

    Identifier "Radeon"
    Driver "radeon"
    # Option "AccelMethod" "glamor"
    Option "AccelMethod" "exa"
    Option "DRI" "2"

EndSection

Thanks, this configuration fixes the problem.

Best regards,
  Andreas



--
Gilles R. Detillieux              E-mail: <[email protected]>
Spinal Cord Research Centre       WWW:    
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.scrc.umanitoba.ca_&d=DwIDbA&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=flJv_rotc2EXb8yIf3dHDevF6nKH3DoraS-O4mKRo7w&s=sdUxTaRffeTi7uHWfBwCTw_9N_C4-69ZBtCQUL_WK80&e=
Dept. of Physiology and Pathophysiology, Rady Faculty of Health Sciences,
Univ. of Manitoba  Winnipeg, MB  R3E 0J9  (Canada)

Reply via email to