Jan 16, 2013

openSUSE Forums: ATI 6850 w/ fglrx - Window stutter when moved / bad GPU performance overall

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ATI 6850 w/ fglrx - Window stutter when moved / bad GPU performance overall
Jan 17th 2013, 04:17

Hello,
I recently installed openSUSE 12.2 (x86_64) on my machine and everything went fine, except for the GPU.

I had to install a driver, which is fine; I installed the 1-click fglrx 64 bit installer and it apparently installed fine. After two cold boots, I could see that things were not working correctly. I had weird errors such as
Code:

X Error: BadRequest (invalid request code or no such operation), ATIFGLEXTENSION
Which I figured was because of missing kernel headers. I went ahead and updated those and then ran
Code:

# fglrx-kernel-build.sh -a -f
. It recompiled everything properly. Rebooted again, and here I am. The performance is much better than it was, but I still get very weird behaviours, such as;
  • When moving a window, the "interior" freezes completely until I stop moving it.
  • I get weird artifacts when passing one window from one monitor to the next (using Xinerma)
  • Moving one window around quickly displays sluggish, slow, screen updates which is an eye-sore
  • Overall bad performance graphically...


Here is a very short video displaying the situation: https://www.dropbox.com/s/tsbaxfm8hc...2022.21.12.mp4
I have heard that this type of behavior is a known issue in the free version of the driver, but I don't think this is supposed to happen with proprietary drivers.

Here is some info on my system:

Code:

# uname -a
Linux linux-e2bl 3.4.11-2.16-desktop #1 SMP PREEMPT Wed Sep 26 17:05:00 UTC 2012 (259fc87) x86_64 x86_64 x86_64 GNU/Linux

Code:

# lspci | grep ATI
04:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Barts PRO [ATI Radeon HD 6800 Series]
04:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Barts HDMI Audio [Radeon HD 6800 Series]

Code:

# lsmod |grep fglrx
fglrx                4728346  188
amd_iommu_v2          19097  1 fglrx
button                13906  1 fglrx

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