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  #1 (permalink)  
Old 25-May-2008, 17:56
Romanator
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During the boot process after selecting openSUSE 10.3 from the menu, I always see this annoying flicker before the bootsplash appears. The flicker did not happen with openSUSE 10.0.

Does any one know how to suppress the flicker? Should I post this as a bug with openSUSE 11?
  #2 (permalink)  
Old 25-May-2008, 22:52
elsewhere
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The flicker is undoubtably a response from your adapter/display switching display modes, and as it's something that is likely hardware dependent, I doubt there is anything the devs can or will do that would change things. For instance, my wife's work laptop flickers when booting into Vista from the splash screen to the login screen, yet my own laptop doesn't. Different adapters, different displays.

If you're experiencing a difference from 10.0, then you might want to experiment with changing the resolution of the framebuffer to something that might be less noticeable in transition. You can do this either through the Yast -> System -> Boot Loader options, or more simply adding vga=ask to the kernel parameters when you boot. This will present you with a menu list of the different resolutions your adapter supports for framebuffer, and you can try different ones until you (hopefully) find one that doesn't flicker as much, and then make that mode permanent. Note, though, that it could affect the column/row setting of your TTY consoles, if that's something that matters to you.

Anyways, hope this helps...

Cheers,
KV
  #3 (permalink)  
Old 26-May-2008, 13:57
Romanator
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Sorry - I should have typed 'single flicker'. It isn't a constant flicker. In fact, you can see a sample video on YouTube showing the boot speed improvement in 10.3 and the person comments about the flicker.
The single flicker is not related to the resolution or "vga=" settings in the kernel parameter settings.
The problem also existed on my older Dell Dimension XPSB733 using an older NVIDIA GeForce TNT Pro at a lower resolution.
I recently purchased a custom made computer with an Intel Quad-Core 6600. The graphics card is a GeForce 8600 GTS with 256MB of VRAM. The monitor an Acer 20" X203w wide screen including 4 GB of SDRAM.

The single flicker shows the following:
root (hd0,4)

kernel /boot/vmlinuz-2.6.22.17-0.1-default root=/dev/disk/by-id/scsi-SATA_WDC_WD5000AAKS-_WD-WCAS85664685-part5 vga=0x31a resume=/dev/sda2 splash=silent showopts
initrd /boot/initrd-2.6.22.17-0.1-default

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I would like to see openSUSE upgrade to Grub 2.x in openSUSE 11.1 at the end of the year. It should clean up a lot of the messy code in the present version.
 

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