Hello all,
I use the xorg-server 1.5.0 (but had this problem with 1.4.2, too)
together with the free intel driver (2.4.2) on a IBM/Lenovo ThinkPad T61
which has an Intel X3100 card.
Since one or two weeks I have some very strange redisplay problems.
- I close a window, but it's still displayed. When I move another
window over it, it'll be erased. (It's like cleaning a chalkboard.)
- I follow a link in a webbrowser, but the old page is still
displayed. In order to see the new one, I have to move the window.
- I compile something in a terminal and some lines are not refreshed.
Again, moving the window forces a redisplay.
It seems to be not depended on the applications I use. It always
happens with konqueror, urxvt, emacs, firefox running inside stumpwm or
XFCE. But till now I didn't have these problems when running inside KDE
4.1.
I'm not completely sure since when these problems occur, but I assume
it's since I updated the intel driver from 2.4.1 to 2.4.2.
These problems only occur, if I have no second monitor attached! At
work, I use my laptop lcd as second monitor left of a big additional
tft. Then redisplay I allright.
I run this simple script on in my ~/.xinitrc to set up the outputs.
--8<---------------cut here---------------start------------->8---
#!/bin/zsh
ORIENTATION=${argv[1]}
if [[ -z ${ORIENTATION} ]]; then
ORIENTATION='--right-of'
fi
SECOND_OUTPUT=`xrandr \
| egrep "[[:alnum:]]+ connected" \
| grep --invert-match "LVDS" \
| cut --d " " -f1`
if [[ -n ${SECOND_OUTPUT} ]]
then
xrandr --auto
xrandr --output ${SECOND_OUTPUT} ${ORIENTATION} LVDS
if [[ ${SECOND_OUTPUT} == TMDS-1 ]]; then
xrandr --output ${SECOND_OUTPUT} --mode 1920x1200
fi
echo "Enabled second output ${SECOND_OUTPUT} ${ORIENTATION} of laptop LCD."
else
xrandr --auto
echo "There's no second monitor attached."
fi
xrandr --dpi 96
echo "Finito."
--8<---------------cut here---------------end--------------->8---
What additional information can I provide?
I'll try to downgrade to intel driver 2.4.1 to see if that helps and
report back. Hopefully I'll find some time this evening.
Bye,
Tassilo
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