Red Hat Bugzilla – Bug 451880
Window refresh rate slower in duel head config
Last modified: 2018-04-11 09:46:57 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9) Gecko/2008061712 Fedora/3.0-1.fc9 Firefox/3.0
Description of problem:
With latest update of xorg windows refreshes are dog slow. Scrolling in firefox with the mouse wheel is much slower. Also dragging a terminal over firefox you see slow redraws.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Thanks for the bug report. We have reviewed the information you have provided
above, and there is some additional information we require that will be helpful
in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf) and X server log
file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file
attachments using the bugzilla file attachment link below.
Could you please also try to run without any /etc/X11/xorg.conf whatsoever and
let X11 autodetect your display and video card? Attach to this bug
/var/log/Xorg.0.log from this attempt as well, please.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Created attachment 309759 [details]
Duel head config
This is the xorg.conf file which I use for my duel head setup on my laptop
Created attachment 309760 [details]
log file for updated xserver
this is the log file for the updated xserver where I began to see problems.
This is using my custom xorg.conf file.
Created attachment 309762 [details]
without xorg.conf file or duel head
This log file is without a xorf.conf file of my vgs monitor attached. Just the
Without my custom xorg.conf file or duel head config everything is working fine.
I see no slowdowns at all. Seams to de a duel head config problem.
On a side note I also do not have direct rendering, I do not even have /dev/drm.
I have opened a separate bug for this. Bug 451887
Without the xorg.conf file both monitors work fine, even dri. The monitors are
mirrors of each other. So something with my xorg.conf file is causing the
problems. How can I get one big desktop without the xorg.conf file?
System-config-display is not working for me at all.
I have pinpointed the problem to the virtual 3200 1200 line in the xorg.conf
file. Without this line the two displays are working fine. But the displays are
lot aligned correctly. I need to have the virual fb bigger.
After repositioning the monitors one above the other and having a virtual
desktop of 1920 2000 My problems went away. So the xserver is having problems
with the monitors side by side. This worked well with the xserver that
originally shipped with F9.
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