Bug 120059

Summary:	Refresh rate very low after boot from CD, for Install/Upgrade
Product:	[openSUSE] SUSE Linux 10.1	Reporter:	Joop Boonen <joop.boonen>
Component:	Installation	Assignee:	Steffen Winterfeldt <snwint>
Status:	RESOLVED WONTFIX	QA Contact:	Klaus Kämpf <kkaempf>
Severity:	Normal
Priority:	P5 - None
Version:	Alpha 1
Target Milestone:	---
Hardware:	Other
OS:	All
Whiteboard:
Found By:	Other	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Joop Boonen 2005-10-04 06:27:55 UTC

If you boot from CD the refresh rate is very low. I even can see the LCD display
blinking. I saw it both on a LCD as a CRT display (LCD + SIS 740) (CRT + ATI 9600)

Comment 1 Steffen Winterfeldt 2005-10-04 08:18:24 UTC

I don't have influence on the timing the Video BIOS chooses.

Comment 2 Joop Boonen 2005-10-04 10:31:15 UTC

I didn't have this problem with 10.0 For the system with the LCD display and 9.3
the system with the CRT display (I didn't install 10.0  on this system).

Comment 3 Steffen Winterfeldt 2005-10-04 10:35:08 UTC

Ok, then where exactly is the refresh rate low. Boot loader? Kernel graphics? 
X during install, X after install?

Comment 4 Joop Boonen 2005-10-05 02:30:15 UTC

I just tested again. Guess what, i didn't see the problem anymore.

I wonder what the problem was, because the lcd display especially was blinking
like crazy. (May be a mains problem, interferance?)

Anyway it's not a bug. Sorry ffor reporting it.

I have one small question. I'm using the LCD monitor, when i choose for the
installation a resolution of 1024x768. I get not supported mode on the display.
I just checked it out it's due to the frequency, that is 87Hz. This is to high
for the 15" LCD display. Hyundai L50S. Do you know it's possible to bring the
frequency down? If yet, might it be an option to choose the type of monitor
during installation, LCD or CRT?

Comment 5 Steffen Winterfeldt 2005-10-05 09:21:19 UTC

You mean you choose 1024x768 at the boot loader and the LCD gets black 
right away at kernel startup? Or do you mean the X setup later on?

Comment 6 Joop Boonen 2005-10-06 06:54:49 UTC

Yes at the kernal start up, after the kernel has been loaded. I think it also
stayes black when x has started. But i'm not completely sure about that. I can
test it if you want.

Comment 7 Steffen Winterfeldt 2005-10-06 09:37:54 UTC

Ok, then there's really nothing we can do. The BIOS selects the timing. 
87Hz is a bit unusual, though. Sounds like that could well be the 
old 43Hz interlaced mode.