Bug 85538 - Font rendering much worse than 8.0
Summary: Font rendering much worse than 8.0
Alias: None
Product: Red Hat Public Beta
Classification: Retired
Component: fontconfig
Version: phoebe
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Owen Taylor
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2003-03-04 02:07 UTC by Tom Sightler
Modified: 2008-05-01 15:38 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2003-03-23 23:13:38 UTC

Attachments (Terms of Use)

Description Tom Sightler 2003-03-04 02:07:34 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3b) Gecko/20030211

Description of problem:
I had a Dell Latitude C810 (1.13Mhz PIII) with a 16MB NVidia Geforce2Go running
Redhat 8 using the NVidia binary drivers.  I recently upgraded this system to
Phoebe Beta 3.

After applying the appropriate patches to make the Nvidia driver compile with
the Phoebe 2.4.20-2.48 kernel and disabling TLS everything seems to work fine
overall except for font rendering.

Compared to Redhat 8 the font rendering in Phoebe is significantly worse.  It
appears to be some type of issue with sub-pixel rendering not  fully working or
at least not working as well as the fonts have outlines of blue and red (it
almost make my laptop display look like a CRT with bad convergence).  

Playing with the sub-pixel rendering settings does improve the view but in no
case is it anywhere near as clear as with Redhat 8.  The problem is also much
less noticable if I run the screen at it's maximum resolution (1600x1200),
however, I usually run at a much lower 1024x768.

I'm not sure what other information I can provide but let me know what else I
can do to help.  I don't see any significant changes to the core font rendering
and wonder if the problem could come from the Xserver itself.

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

How reproducible:

Steps to Reproduce:
1. Boot up into 1024x768 mode on Dell Latitude Laptop

Actual Results:  Characters are not very clear on laptop display

Expected Results:  Characters should be at least as clear as Redhat 8

Additional info:

Comment 1 Tom Sightler 2003-03-23 23:13:38 UTC
This appears to be somehow related to an interaction with the NVidia binary
drivers and XFree86 4.3 and not directly related to fontconfig.  I downgraded my
XFree to 4.2 from Redhat 8.0 and the font rendering is back to normal.  The
standard nv that comes with 4.3 also seems to work correctly.

I will report this issue to NVidia.

Sorry for the eroneous report, I thought I had tested this with the default 'nv'
driver before reporting this, apparently I had not.


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