Definitely the driver has problems. I am on a X201 Tablet. Xournal
works ok, but randomly, during rotation
the display goes black and I can't get it back :(
The machine is active, I can suspend, and resume, but I can't see anything :(
perhaps our solution is to rollback to a stable version of it.
--dmg
On Fri, May 13, 2011 at 7:17 PM, <gi1242+xournal-de...@gmail.com> wrote:
> On Wed, May 11, 2011 at 10:36:33AM +0200, Jonas wrote:
>
>> From: Jonas <co...@online.de>
>> To: xournal-devel <xournal-devel@lists.sourceforge.net>
>> Date: Wed, 11 May 2011 10:36:33 +0200
>> Subject: Re: [Xournal-devel] Delayed drawing flavour Alice and flavour Bob
>>
>> Okay, to sort this mess out: I am pretty sure there are actually two
>> different bugs, or at least two different manifestations of the same
>> bug:
>>
>> *** Bug A
>> - Reported by GI on May 7th
>>
>> "When my display is rotated, I find that the drawing of regular
>> strokes is delayed. That is, if I move the pen to the right by one
>> inch, it takes a second for me to see the stroke appear"
>>
>> I'll add to that: If I draw a continuous line, I see every second or
>> split second a small part of the line appearing.
>>
>> - Happens only when display is rotated
>> - --sync independent
>>
>> - Enabled INPUT_DEBUG on "visible" terminal make it disappear for some
>> (Jonas May 10th)
>> Not for all though, apparently (GI May 10th)
>>
>> - Is not experienced with xf86-video-intel<=2.14.0 or current
>> upstream git (Jonas May 10th)
>
> I just upgraded to the current upstream git (2011-05-12) and I don't see
> the problem either!
>
>>
>> *** Bug B
>> - Reported by dmg on May 7th
>> "This might or might not be related ... in some cases the
>> strokes are not displayed when created (but they are saved)
>> Only when the page is refreshed."
>>
>> I'll add to that: if I draw a continuous long line, the drawing
>> stops at some random point and from there on only small stripes or
>> blocks show the new lines. All is shown as soon as some drawing
>> update is forced, as by hovering over the scrollbar or scrolling
>> with cursor keys. (my description)
>>
>> "they look like bands across the entire page --rectangles to be more
>> precise, where nothing is redrawn" (dmg 10th)
>>
>> - Affects rotated as well as non-rotated (dmg 9th)
>> - --sync independent
>> - Doesn't affect X201T, but X61T (dmg 10th)
>> - Enabled INPUT_DEBUG on visible terminal make it disappear (dmg 10th)
>> I can confirm this now here as well
>>
>> - Perhaps connected to kernel changes between 2.6.32 and 2.6.38
>> ("I rebooted, and upgraded to kernel 2.6.38-2. Now I have a whole
>> bunch of weird drawing problems even in unrotated mode" GI and
>> another mail "but not on the 2.6.32 kernel" GI)
>>
>> - on upstream xf86-video-intel and kernel 2.6.38, this bug still
>> occurs, but ironically only in non-rotated mode (Jonas now)
>
> On git HEAD xf86-video-intel (as of 2011-05-12), and 2.6.38 kernel, I
> erratically have this problem!
>
> I'm pretty sure this can't be an Xournal problem It's either an X server
> problem, or (more likely) a display driver problem. I'm going to follow
> this on Debian bugzilla for a bit and see what turns up.
>
> GI
>
> --
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--
--dmg
---
Daniel M. German
http://turingmachine.org
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