On Sat, 11 May 2013 08:44:22 -0700 "Dennis E. Hamilton" <dennis.hamil...@acm.org> wrote:
> I see less-dramatic variants of these on Windows 8 also, using an ATI Radeon > HD 5980 graphics processor with an HP Z30W monitor in 32bbp 2560 x 1600 > landscape orientation. > > I am certain in my case that the situation is GDI/driver/engine related. The > typical situation is where editing leads to modified text appearing > off-baseline and interfering with adjacent text, usually in the line above. > Since causing the displayed material to refresh corrects things (e.g., by > performing a Page Down followed by a Page Up), the situation is somewhere in > the rendering path. > > I am not so certain that the situation is unique to OpenOffice-lineage > programs. That may just reflect where we are working so much. It could be > attributable to heavy usage of fine-detail font rendering in these programs > bringing out the defects. There might also be associated computational > errors (somewhere in the code base and libraries used) in how changes in > documents are first rendered in the GUI. > > It is also necessary to consider that different users observe similar defects > with different causes. It does seem that it is all about rendering in the > GUI, not something untoward happening to the document itself (internal to the > program or when made persistent). > > The challenge is having tests that can reveal these situations and support > isolation of causes. > > - Dennis > > -----Original Message----- > >From: Andrew Douglas Pitonyak [mailto:and...@pitonyak.org] > Sent: Saturday, May 11, 2013 07:08 > To: Johnny Rosenberg > Cc: users@openoffice.apache.org; LibreOffice Användare > Subject: Re: [libreoffice-users] ”Artifacts” in OpenOffice and LibreOffice > > > I have had subtle redraw issues with OO off and on, and I always blamed > it on an interaction between applications and the video drivers. Realize > that I use nVidia video cards on 64-bit Fedora using the proprietary > video drivers. What I saw was not remotely as bad. Admittedly, when I > tried out the latest dev build, it was totally unusable (of course, the > single tester was unable to reproduce on Windows 7). > > see https://issues.apache.org/ooo/show_bug.cgi?id=122214 > > Are you able to do a test and change your video driver say between the > free and not free driver to see if there is a change (I do not use > Ubuntu so I don't have a good handle on what drivers are available or how). > > I used to have exactly the same problem in QT, and it was very bad. I > was able to avoid the problem with QT Creator by starting it using > > -graphicssystem raster > > Not that I expect this to help you. I did notice that it still has some > rendering issues that appeared in the latest versions (I believe it is > related to an over-lay issue when you edit a field.... that assumption > allowed me to fix it in the software that I write, but I did not jump > into the QT code base). > > I have seen strange redraw issues so long in OO that correcting for it > is almost automatic in my brain (scroll screen up then down to clear) so > I cannot even say if I still see the problem. I think I do, but it is > for sure not as bad is it used to be for me. > > I know, that I have rambled on and on.... I will summarize in saying > > 1. I have never seen it so bad > 2. I have seen screen corruption > 3. You may avoid some of it based on the video driver > > If I had it that bad on my Fedora system, I would likely change my > desktop on login to see if it helped. With Fedora, I can easily jump > between Gnome and KDE (as one example). I would also try jumping between > the two different drivers available to see how that helped as well. > Sadly, the "free" driver is poor with respect to 3D stuff. > > > On 05/11/2013 08:52 AM, Johnny Rosenberg wrote: > > I have had this problem for quite some time now (months if not years) > > in LibreOffice and OpenOffice. The problems are maybe a little bit > > worse in LibreOffice, but I didn't exactly measure it… > > > > It looks like a graphics card problem, but why are nothing else > > affected? It only happens to OpenOffice and LibreOffice. I tested a > > few versions and it seems to not matter. The screenshots are taken > > with Apache OpenOffice 3.4.1 and I saw the same thing in LibreOffice > > 3.5, 3.6 and 4.0. I think this also happened with earlier LibreOffice > > versions, like 3.4 and 3.3. I didn't use OpenOffice since 3.2 (except > > 3.4.1, which I use these days), and I don't even remember what it > > looked like. > > > > Here's a screenshot with Apache OpenOffice Calc 3.4.1. I added some > > arrows pointing at the problem areas: > > http://ubuntuone.com/0wvqcaN38PC5835t4uJVPv > > > > The worst thing is when I try to use the Basic IDE, take a look at > > this. Very hard to write and edit code when it looks like this: > > http://ubuntuone.com/4HRPQMpblZT97UxHq5ggzO > > > > My operating system is Ubuntu 12.04 and the more stuff I run at the > > same time, the worse will it look. > > > > My graphics card is the nVidia GeForce Go 7300, which is blacklisted > > for use with the Unity 3D desktop, so that may be what's causing this > > problem, but still it ONLY happens to LibreOffice and OpenOffice. > > > > One thought that I have is that LibreOffice and OpenOffice are not GTK > > applications (I think – are they?), but on the other hand, neither is > > my web browser (Opera), and I don't have these problems with it. > > > > Both LibreOffice and OpenOffice.org were installed with the official > > deb files. The LibreOffice version that came with Ubuntu 12.04 was > > carefully removed before installing what I have now. > > > > Thoughts? Anyone else saw this? > > > > Packard Bell Easy Note MX66 laptop, made in November 2006. > > 2.0 GiB RAM, Genuine Intel® CPU T2050 @ 1.60GHz × 2. > > > > Ubuntu 12.04 LTS (32 bits) > > Kernel: Linux 3.2.0-41-generic-pae > > > > nVIDIA Driver Version: 304.88 > > > > -- > Andrew Pitonyak > My Macro Document: http://www.pitonyak.org/AndrewMacro.odt > Info: http://www.pitonyak.org/oo.php > > > -- > To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org > Problems? > http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ > Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette > List archive: http://listarchives.libreoffice.org/global/users/ > All messages sent to this list will be publicly archived and cannot be deleted A fix frequently advised for video oddities in OpenOffice is to disable (turn off) one or both of "Video Acceleration" and "anti-Aliasing" in /Tools /Options /OpenOffice.org : View, under Graphics output. I think it is necessary (it won't hurt) to restart OpenOffice completely, including any Quickstarter, for these to take; I normaly suggest that less experienced users power down and restart their computer. If this works, it is only a workaround; ideally the rendering engine should be investigated in depth. -- Rory O'Farrell <ofarr...@iol.ie> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@openoffice.apache.org For additional commands, e-mail: users-h...@openoffice.apache.org
