https://bugs.documentfoundation.org/show_bug.cgi?id=95300

ullix <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |UNCONFIRMED
     Ever confirmed|1                           |0

--- Comment #5 from ullix <[email protected]> ---
Björn's suggestion of this bug being a hardware driver regression made me do
some investigations using some new computers and old clunkers lying around.

Preliminary possible conclusion: this bug exists on all computers with Intel
CPUs younger than 8(!) years, but not with AMD CPUs, and only when running
*buntu 15.04 and 15.10.

Running *buntu 12.04 and 14.04 worked fine on all computers.

What I did: I downloaded Ubuntu MATE 15.10 (kernel Linux 4.2.0-16-generic
(x86_64)) and created a LIVE USB stick (had to use mkusb, as a stick made with
usb-creator-gtk from 14.04 was not bootable). 

This stick was run as LIVE system on several computers, and the stalling
test3line.odp presentation was tested. A hardware report using hardinfo was
created also.

Result: (year the CPU was launched)
(2006): WORKING: Intel Core2 T7200...(Chipset 945GM)
(2008): NOT WKG: Intel Atom 300......(Chipset 945GC)
(2013): NOT WKG: Intel i7-4771.......(HD Graphics 4600)
(2015): NOT WKG: Intel i5-5200.......(HD Graphics 5500)

(2012): WORKING: AMD A10-5800K.......(Radeon 7660D)

Assuming this has something to do with the graphics drivers, I added the info
on chipset/graphic. All computers used the build-in graphics. All Intel
computers used the i915 kernel module. (The AMD used radeon).

Impress does not crash on this bug - there simply is no update of the screen
until you have done enough clicks that the presentation ended. Then it is back
to the normal edit window.  Even --backtrace does not give any info.

So, what now?

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