Red Hat Bugzilla – Bug 428877
intel driver with external monitor shows artefacts
Last modified: 2008-06-29 09:46:34 EDT
Description of problem:
When I plug my laptop to external samsung 19" monitor it works great, resolution
is set correctly to 1280x1024 and my laptop screen stays on with its own
resolution of 1280x800.
The problem is with artifacts that emerge when I scroll some application, like
firefox web browser (look at the attached photo).
If I move the nautilus window in the right part of the screen until the middle
nothing happens, but if the bottom part of the nautilus window (or any other)
crosses below 735 pixel the artifact lines emerge.
It looks like desktops from laptop and external monitor intersect badly and that
some lines "spill" from one desktop to another.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. plugin external monitor
2. turn on the laptop
3. profit :)
Created attachment 291747 [details]
Created attachment 291748 [details]
You know the drill:
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 291764 [details]
Created attachment 291765 [details]
this is with default xorg setup from fedora 8, I'll attach another log later
without any xorg.conf file but this should be enought for you X gurus :)
It probably is. But try it without xorg.conf anyway -- I had just now couple of
happy reporters whose problems went away by removing xorg.conf.
So, I will assign this to developers, but then switch that NEEDINFO, so that we
I connected my laptop to another monitor - Samsung SyncMaster 940N and on this
moniotor I have no artefacts!
I still have the same xorg.conf file and I'll attach the Xorg.0.log file in
attachement. And when I come from work I'll testi my home monitor (which has the
artifacts) without xorg.conf file.
I didn't expect that I'll have artifacts on one monitor and not on another,
Created attachment 291840 [details]
Xorg.0.log with Samsung 940N
this is the log file with same xorg.conf file on Samsung 940N. On this monitor
I don't see any artifacts.
On xorg mailing list they told me that this bug is probably fixed in intel 2.2.0
driver and I see fedora 8 uses 2.1.1.
Any chance of upgrading intel driver in fedora?
Created attachment 291865 [details]
Xorg.0.log with Philips 190V without xorg.conf
I have no artifacts when I remove xorg.conf
Running my laptop without xorg.conf isn0t acceptabe because I use croatian
keyboard layout and removing it I loose mt keyboard mapping. I needed 5x time to
write this text and was a bit frustrating.
Can I only remove a part of xorg.conf and leave the part about keyboard?
Take a look at your /var/log/Xorg.0.log -- the version of xorg.conf with your
current settings should be dumped there.
in comment #4 you can see my current xorg.conf
when I use that xorg.conf on philips LCD I get artifacts, when connect samsung
lcd monitor with same xorg.conf file I have no artifacts.
When I remove xorg.conf philips monitor also has no artifacts and you can see
the log without xorg.conf in comment #11
Do you need some other feedback from me?
Today fedora 8 had 14 updates, after installing and rebooting the new kernel the
artifacts have returned on Philips 190V 19" LCD! I don't have xorg.conf and I
still see the artifacts. I'll attach the logs.
Created attachment 292914 [details]
I turned on my laptop now and I didn't change any settings and I didn't install
any updates (there weren't any) and the artifacts are gone again.
This seams random... your thoughts?
No idea. Yeah, this is random, and we will deal with it when will be able to
deal with it.
Could you please not send me emails to my email address? We really want to have
whole conversation logged in bugzilla. Thank you.
I'm seening this again after latest updates and I haven't seen in under Fedora 8
for some time now.
Under Fedora 9 is seams to be fixed. Will intel driver be updated for Fedora 8 also?
I'm not seeing this in Fedora 8 anymore. So please check for yourself and then
close the bug.
Thanks for reporting back. Closing bug as per comment #20 and comment #21.