Bug 853023 - Sometime, some character are badly displayed
Summary: Sometime, some character are badly displayed
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: Terminal
Version: 17
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kevin Fenzi
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-08-30 09:44 UTC by Pierre Blavy
Modified: 2013-08-01 17:32 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-08-01 17:32:25 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
screenshot (151.15 KB, image/png)
2012-08-30 09:44 UTC, Pierre Blavy
no flags Details
screenshot : anti Alias OFF, No hinting, no sub-pixel. 'i' chars are still broken (53.81 KB, image/png)
2012-08-31 08:42 UTC, Pierre Blavy
no flags Details
/tmp/aa/Xorg.0.log (24.56 KB, text/x-log)
2012-09-03 13:24 UTC, Pierre Blavy
no flags Details
/usr/bin/xdpyinfo (33.58 KB, application/octet-stream)
2012-09-03 13:25 UTC, Pierre Blavy
no flags Details
xdpyinfo output (9.58 KB, text/x-log)
2012-09-03 17:22 UTC, Pierre Blavy
no flags Details

Description Pierre Blavy 2012-08-30 09:44:24 UTC
Created attachment 608104 [details]
screenshot

Description of problem:

- Some characters are badly dispayed. (see the attached screenshot).

- When a character is badly displayed, it's always bad the same way (see the screen shot : bad 'x' and bad 'b' are always the same).

- Sometimes bad character changes (now 'I' character is buggy in firefox while I'm typing this bug report, but still works on mousepad and worked few seconds ago when I've taken the screenshot).

- The bad character are not always the same, but I cannot find what triger this bug.

- I've run a memtest

- I'm experiencing this bug on my asus eee900, but everyting works on my others computers.

- I'm having this bug, since fedora 16 (don't know for earlyer versions)

- Bad character always have a few contiguous missing lines.

- I already had this bug on anaconda during upgrade (with the netinstall iso on a USB stick).

- This bugs seems to be time related : the more I wait after boot, the more broken character I've got.

Version-Release number of selected component (if applicable):
Fedora 17


How reproducible:
Often, but only on my eeePC.


Steps to Reproduce:
1. Type some text in mousepad or terminal or firefox text fields
2. Drink a cofee
3. Pray.
I realy appologize, but this bug is random, and I was unable to reproduce it on an other machine.

  
Actual results: Some texts are realy ugly, morever broken t looks like broken l and broken i. This bug is still random.


Expected results: Characters displayed correctly


Additional info:

Comment 1 Kevin Fenzi 2012-08-30 15:01:39 UTC
What are your font settings there? I assume you are running Xfce?

If so, go to preferences->appearance

and look at the 'fonts' tab

is anti-aliasing enabled? Does it make any difference to toggle it?

How about hinting and subpixel ordering?

Comment 2 Pierre Blavy 2012-08-31 08:31:39 UTC
What are your font settings there? I assume you are running Xfce?
--> YES
--> pure terminal (ALT CTRL F3 for example) is unaffected by this bug.

If so, go to preferences->appearance
and look at the 'fonts' tab
setting/apparance?

is anti-aliasing enabled?
YES

Does it make any difference to toggle it?
Unaliased characters are uglyer
The bug remains


How about hinting and subpixel ordering?
Hinting FULL
Subpixel order : None
switching hinting to none do not change anything.

Comment 3 Pierre Blavy 2012-08-31 08:42:19 UTC
Created attachment 608433 [details]
screenshot : anti Alias OFF, No hinting, no sub-pixel. 'i' chars are still broken

Anti Alias OFF, 
No hinting, 
No sub-pixel. 

'i' chars are still broken

X was restarted after the changes in appareace where done

Comment 4 Kevin Fenzi 2012-08-31 16:35:10 UTC
I wonder if this is a X driver or server bug... 

Can you attach the output of:

/var/log/Xorg.0.log

and 

xdpyinfo

please? Thanks.

Comment 5 Pierre Blavy 2012-09-03 13:24:24 UTC
Created attachment 609387 [details]
/tmp/aa/Xorg.0.log

Comment 6 Pierre Blavy 2012-09-03 13:25:08 UTC
Created attachment 609388 [details]
/usr/bin/xdpyinfo

Comment 7 Pierre Blavy 2012-09-03 13:25:56 UTC
Comment on attachment 609387 [details]
/tmp/aa/Xorg.0.log

Typo : file is /var/log/Xorg.0.log

Comment 8 Kevin Fenzi 2012-09-03 16:30:36 UTC
(In reply to comment #6)
> Created attachment 609388 [details]
> /usr/bin/xdpyinfo

Could you attach the _output_ of running that command, not the command itself? ;)

Comment 9 Pierre Blavy 2012-09-03 17:22:00 UTC
Created attachment 609448 [details]
xdpyinfo output

The output, of course! :) and all apologizes for de missunderstanding.
Note for future : do not do stuff before drinking cofee.

Comment 10 Kevin Fenzi 2012-09-03 19:47:51 UTC
ok, can you go into appearance pref and fonts and check 'custom dpi setting' and set it to "96" and see if anything changes?

I well understand about the first cup of coffee. ;)

Comment 11 Neil Darlow 2012-10-26 19:52:21 UTC
I've had this problem on multiple distributions on my Eee 900 also.

A workaround is to put the following in the Device section of your Xorg configuration. You might need to create an /etc/X11/xorg.conf.d/NN-device.conf file if one doesn't exist (where NN is some Fedora-acceptable number):

    Option "DebugWait" "True"

This has fixed the character breakage for me on many occasions. It seems to be a bug associated with the Intel 915GM graphics chipset.

Comment 12 Fedora End Of Life 2013-07-04 06:06:48 UTC
This message is a reminder that Fedora 17 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 17. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '17'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 17's end of life.

Bug Reporter:  Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 17 is end of life. If you 
would still like  to see this bug fixed and are able to reproduce it 
against a later version  of Fedora, you are encouraged  change the 
'version' to a later Fedora version prior to Fedora 17's end of life.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 13 Fedora End Of Life 2013-08-01 17:32:36 UTC
Fedora 17 changed to end-of-life (EOL) status on 2013-07-30. Fedora 17 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.


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