[Bug 638939] [NEW] Desktop is larger than screen

[meijer.o]

Public bug reported:

Binary package hint: linux-image-2.6.35-21-generic

hardware HP ProBook 4510s (has HDMI)
Kernels without bug: 2.6.31
Kernels with bug 2.6.32, 2.6.33, 2.6.34, 2.6.35, 2.6.36rcx (including standard ubuntu and vanilla kernels) Ubuntu Lucid installed, and Meerkat Beta booted from USB-stick)


Bug also occurs in opensuse and fedora


Bug also occurs with KMS disabled
Driver i915
graphics  Intel 4500 GMA, display 1366x768

Description of bug

Sometimes the mouse pointer or windows seem to disappear at the right side of
the screen after login or after CHVT

A print screen reveals the bug very clearly, see attachments (the mouse pointer
and nautilus are invisible, I only see the left image).

Executing xrandr (without any or with options) will cure the desktop

I attached a xorg.0 dmesg with boot parameter drm.debug=0x6.

I patched the kernel with the  patch included in this report to kernel
2.6.32 and 2.6.35, this fixed the bug. I did not find any side effects.

I reported the bug at kernel.org, see
https://bugzilla.kernel.org/show_bug.cgi?id=16236


If you need further information, please let me know, but I am not a Linux
expert

Kind regards,

Otto Meijer

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Desktop is larger than screen
https://bugs.launchpad.net/bugs/638939
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