Bug 26295

Summary:	XFree does fall back to FBDEV on FSC Laptop
Product:	[Retired] Red Hat Linux	Reporter:	Christoph Rohland <cr>
Component:	anaconda	Assignee:	Brent Fox <bfox>
Status:	CLOSED DUPLICATE	QA Contact:	Brock Organ <borgan>
Severity:	low	Docs Contact:
Priority:	medium
Version:	7.1
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:	Florence Gold
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-02-12 19:49:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Christoph Rohland 2001-02-06 10:34:28 UTC

I did a fresh install on a Fujitsu Siemens Laptop with Neomagic video card
It detected everything right and did a monitor check and detected the LCD.

Resolution was set to 1024x768

After reboot it came up with 800x600 and FBDEV driver

The neomagic driver did not find a valid modeline because the VSYNC range 
was very narrow.

I will post additional information this evening (forgot the data sheet at 
home)

Comment 1 Glen Foster 2001-02-07 00:20:21 UTC

We (Red Hat) should really try to fix this before next release.

Comment 2 Brent Fox 2001-02-09 09:46:16 UTC

Did you get a chance to get your data sheet together?  We have a couple of
laptops here with NeoMagic chips, and they behave okay.  I'd like to track down
the problem you are having.

Comment 3 Christoph Rohland 2001-02-12 19:49:10 UTC

Sorry for the delay...

Here comes more data:

The laptop is a Siemens Scenic Mobile 510 AGP

lspci says for the vga chip: Neomagic Corporation [MagicMedia 256AV] (rev 20) 

And the installer detected via DDC:
   HorizSync: 31.5-35.2
   VertRefresh: 50-61

The Hsync range was to small to get a valid modeline for 1024x768.
After increasing this to 31.5-70 it works.

Comment 4 Brent Fox 2001-02-16 17:19:06 UTC


*** This bug has been marked as a duplicate of 27687 ***