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Bug 159927 - black screen when entering graphics mode during installation
Summary: black screen when entering graphics mode during installation
Alias: None
Product: Fedora
Classification: Fedora
Component: anaconda
Version: 4
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Chris Lumens
QA Contact: Mike McLean
: 160621 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2005-06-09 12:04 UTC by Seppo Voutilainen
Modified: 2007-11-30 22:11 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2006-05-05 21:08:27 UTC

Attachments (Terms of Use)

Description Seppo Voutilainen 2005-06-09 12:04:57 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)

Description of problem:
Compaq laptop (Evo N1000v) LCD-display turns black when entering graphics mode.
Everything works fine when using external monitor.
Things do not change after installation is completed.

Graphics chip is ATI Radeon Mobility 7500.

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

How reproducible:

Steps to Reproduce:
1.Just start X Window

Actual Results:  LCD screen of laptop is black or flickering.

Additional info:

Computer is Compaq Evo N1000v laptop.
Graphics chip if ATI Radeon Mobility 7500
Colleagues told that same bug exists with Core 3.

When xorg.conf is modified, best results are flickering screen.

Fedora Core 2 worked (and still works) just fine in same computer!

Comment 1 Jeremy Katz 2005-06-10 15:55:04 UTC
Does booting with 'linux nofb' help?

Comment 2 Seppo Voutilainen 2005-06-16 06:05:37 UTC
Booting with 'linux nofb' do not help.
- no probleblems as long as text mode was in use
- wide vertical stripes on laptop LCD screen when "Welcome to Fedora Core" 
graphics should be displayed
- when external monitor was connected at this situation, graphics was seen as 
it shoud

Comment 3 Chris Lumens 2005-06-16 15:43:19 UTC
*** Bug 160621 has been marked as a duplicate of this bug. ***

Comment 4 Seppo Voutilainen 2005-06-20 10:42:00 UTC
Boot option was good idea (thanks Jeremy!).

When checking other boot options,
    'linux resolution=1400x1050' 

was what I needed.

That 1400x1050 is 'native resolution' (maximum resolution) of our Compaq Evo 
N1000v laptop LCD-display.
When that option was given, laptop's own display was readable when 
installation program changed to graphics mode.

This option worked with:
  Fedora Core 4 test 3
  Fedora Core 4
  (might work with Fedora Core 3; not tested)

Comment 5 Tarjei Knapstad 2005-10-03 11:34:53 UTC
Struggling with the same laptop here. I've just done a text install thinking I
could fix the X stuff later (I've updated all the packages), but I'm having

I just tried booting the install CD with the resolution=1400x1050 option which
works fine, but adding the 'resolution' option when trying to boot from HD does
nothing. I end up with a black screen and can't even switch to a text terminal
so I have to cold reboot the laptop.

Could anyone tell me what should be in the Screen and Monitor sections in
xorg.conf? (I tried adding 1400x1050 as a Mode in the Screen section, but same

Comment 6 Chris Lumens 2006-01-16 20:37:11 UTC
Is this better in FC5t2?

Comment 7 John Thacker 2006-05-05 21:08:27 UTC
Closing due to lack of response from reporter.

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