[arch-general] XServer: Display errors beyond virtual x-coord 2640

[Tobias Frilling]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi there,

I found a strange problem today after connecting my new monitor to my computer.
With the new monitor I am using a multi monitor setup of size 3200 x 1080. But
it seems some applications are having troubles displaying anything beyond the
apparently magical line of the (virtual) x-coord 2640.
The troublemakers so far are:

- - GVim
   which renders no text beyond the magical line. This happens mid-character.
   vim in a terminal behaves fine.

- - Tint2
    which shows no application icons in the system tray after 2640. Also happens
   mid-icon. The clock has no problems. The rendering of icons in xfce4-panel
   works strangely.

- - MPlayer,MPlayer2, VLC, Skype
   those freeze, but only in the "danger zone"; so they play a partially
   frozen video

- - xterm
   same problem as with GVim. Other terminals (rxvt, Roxterm) are fine.

- - Conky
  Same as Gvim and xterm

Most other applications are not affected by this bug.

This problem seems to be independent from the window manager, as it occurs in
openbox-multihead, vanilla openbox, i3, dwm and awesome.

I am enabling my multihead setup via xrandr:
xrandr --output VGA-0 --auto --pos 1280x0 --output LVDS --auto --pos 0x280

Package infos:
- - xorg-server 1.12.3.901-1
- - xorg-xrandr 1.3.5-1
- - libxrandr 1.4.0-1
- - libxinerama 1.1.2-1
- - xf86-video-ati 1:6.14.6-1

Further information:
xrandr output: https://pzt.me/7o17
Xorg.0.log:    https://pzt.me/9fb4

Here are some pictures. As you can see, the text gets cut mid-character, but
strangely, the textdecoration is not affected.
http://img.vim-cn.com/af/ea943e3e903364fc9fc0d00d7ccd09f980bc40
http://img.vim-cn.com/ed/3ec2f5a955fefccbfa29d9d7b7356ea9669348
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=GfOd
-----END PGP SIGNATURE-----