bug#13106: Graphical glitches in Cocoa Emacs

bug#13106: Graphical glitches in Cocoa Emacs

[Bjarte Johansen]

Hi,
I have some graphical problems in my emacs installation. 

I will most of the time In Cocoa Emacs see graphical glitches on the text and other places in the window. Usually it manifests by turning a pixel or two a different colour then what it is supposed to be. Sometimes there will be a line, It is usually in areas of high change. I have a clock on the right side of the mode line. After some time some of the pixels around the characters will turn green. It is most often (if not all the time) on the right side of the screen, as if there is a "off-by-one"-error. 

Other times I will also see a darker colour next to the right fringe. This colour is the same as the colour I have for the mode line and cursor. 

In the package list there will be some small areas on top of the buffer that does not change to the darker colour I have set it should have and will keep the background colour. 

The version I have been using is Emacs 24.2, but I have had this problem since Emacs 23.* (or when started using OS X).

Thank you for your time.

Regards,
Bjarte Johansen

bug#13106: Graphical glitches in Cocoa Emacs

[Stefan Monnier]

> The version I have been using is Emacs 24.2, but I have had this problem
> since Emacs 23.* (or when started using OS X).

Please try it with the pretest version (24.2.90, a pre-release version
of 24.3), and see if you can come up with a way to reproduce
the problem.


        Stefan

bug#13106: Graphical glitches in Cocoa Emacs

[Bjarte Johansen]

On Dec 7, 2012, at 02:48, Stefan Monnier <monnier@iro.umontreal.ca> wrote:

>> The version I have been using is Emacs 24.2, but I have had this problem
>> since Emacs 23.* (or when started using OS X).
> 
> Please try it with the pretest version (24.2.90, a pre-release version
> of 24.3), and see if you can come up with a way to reproduce
> the problem.
> 
> 
>        Stefan

I still get some artefacts, though right now it seems to be much less then usual. How I reproduce it it to run /Emacs -Q --eval "(set-face-attribute 'default nil :font \"monaco-14\")" (it needs the bigger text it seems). I then open a file with a lot of text, like the GPL, and scroll to the bottom. When I scroll back up you can see at least one pixel on the mode line where the line numbers are that shouldn't be there. There is also some storage pixels near the are that describes where you are in the file. The more times I scroll back and forth, the easier it is to see the pixels. 

I also seem to be missing antialiasing in this version. Am I just crazy or did the text look better in 24.2?

The area above the package-list seems to be ok though. 

(I appologize to Stefan, I forgot to CC debbugs, so you get it twice.)

bug#13106: Graphical glitches in Cocoa Emacs

[Jan Djärv]

Hello.

7 dec 2012 kl. 13:58 skrev Bjarte Johansen <bjo013@student.uib.no>:

> 
> On Dec 7, 2012, at 02:48, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> 
>>> The version I have been using is Emacs 24.2, but I have had this problem
>>> since Emacs 23.* (or when started using OS X).
>> 
>> Please try it with the pretest version (24.2.90, a pre-release version
>> of 24.3), and see if you can come up with a way to reproduce
>> the problem.
>> 
>> 
>>       Stefan
> 
> I still get some artefacts, though right now it seems to be much less then usual. How I reproduce it it to run /Emacs -Q --eval "(set-face-attribute 'default nil :font \"monaco-14\")" (it needs the bigger text it seems). I then open a file with a lot of text, like the GPL, and scroll to the bottom. When I scroll back up you can see at least one pixel on the mode line where the line numbers are that shouldn't be there. There is also some storage pixels near the are that describes where you are in the file. The more times I scroll back and forth, the easier it is to see the pixels. 
> 

Ca you provide a screenshot?

> I also seem to be missing antialiasing in this version. Am I just crazy or did the text look better in 24.2?

See bug 11484 (http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11484).

	Jan D.

bug#13106: Graphical glitches in Cocoa Emacs

[Bjarte Johansen]

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On Dec 10, 2012, at 07:29, Jan Djärv <jan.h.d@swipnet.se> wrote:

> Ca you provide a screenshot?

If you look at the attached screenshot you can see that next to Top there are some black pixels that are not supposed to be there. Those line perfectly up with the % sign that would be there if I was somewhere else in the text. After the 2 you can also see a black pixel. That pixel is exactly where the tail in the end of the 4 would be for the next character. (e.g. if I was at line 404).


> 
>> I also seem to be missing antialiasing in this version. Am I just crazy or did the text look better in 24.2?
> 
> See bug 11484 (http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11484).

This explains a bit. I would rather have the bug then not have anti-aliasing though.



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bug#13106: Graphical glitches in Cocoa Emacs

[Alan Third]

Bjarte Johansen <bjo013@student.uib.no> writes:

> Hi,
> I have some graphical problems in my emacs installation. 
>
> I will most of the time In Cocoa Emacs see graphical glitches on the
> text and other places in the window. Usually it manifests by turning a
> pixel or two a different colour then what it is supposed to be.
> Sometimes there will be a line, It is usually in areas of high change.
> I have a clock on the right side of the mode line. After some time
> some of the pixels around the characters will turn green. It is most
> often (if not all the time) on the right side of the screen, as if
> there is a "off-by-one"-error.
>
> Other times I will also see a darker colour next to the right fringe. This colour is the same as the colour I have for the mode line and cursor. 
>
> In the package list there will be some small areas on top of the buffer that does not change to the darker colour I have set it should have and will keep the background colour. 
>
> The version I have been using is Emacs 24.2, but I have had this problem since Emacs 23.* (or when started using OS X).

Hi, I believe this is fixed in Emacs 25 (possibly a later release of
Emacs 24 too). Can you try the pretest and see if you still get these
glitches?

-- 
Alan Third

bug#13106: Graphical glitches in Cocoa Emacs

[Bjarte Johansen]

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> On 04 May 2016, at 20:41, Alan Third <alan@idiocy.org> wrote:
> Hi, I believe this is fixed in Emacs 25 (possibly a later release of
> Emacs 24 too). Can you try the pretest and see if you still get these
> glitches?

Seems to be fixed in 24.5.1, do you need to me to test in a later version as well?

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bug#13106: Graphical glitches in Cocoa Emacs

[Alan Third]

On 5 May 2016 at 12:17, Bjarte Johansen <bjarte.johansen@uib.no> wrote:
>
> On 04 May 2016, at 20:41, Alan Third <alan@idiocy.org> wrote:
> Hi, I believe this is fixed in Emacs 25 (possibly a later release of
> Emacs 24 too). Can you try the pretest and see if you still get these
> glitches?
>
>
> Seems to be fixed in 24.5.1, do you need to me to test in a later version as
> well?

No, that's fine. I'll close this bug report.

Thanks!

-- 
Alan Third