Mailinglist Archive: opensuse (924 mails)

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[opensuse] VGA mode question
  • From: Constant Brouerius van Nidek <constant@xxxxxxxxxxx>
  • Date: Fri, 05 Oct 2012 10:43:36 +0700
  • Message-id: <2237979.MnxKjhhH5q@bigone>
After a big update the VGA mode was automatically changed to 1289x1024,
16 bits.
Nice mode (31a) but too small for my eyes.
Changed it to my standard mode 1024x768 and because I had the choice, I
choose the 16 bits resolution (317).
This resulted in some strange effects in e.g. kmail. Instead of one color
it showed three to four stripe in strong colors.
Changed it on good luck to mode 316 , 1024x768 15 bits and the display
is as it should.

Started to google on VGA modes and bits but did not learn why the 16
bits at the high resolution was okay and why it gave problems at a lower

Could somebody tell me in plain English what I did and why I had the
strange effects.
Should I have known the right VGA Mode? Why do I have choices for modes
if they give problems? Is there a method to find out what the best bit
setting is for my screen? What should have happened if I would choose
the 24 bit Mode? (don't want to blow my computer ;) )

Linux User 183145 using KDE4 on a Pentium IV ,
powered by openSUSE 12.3 Milestone 0 (i586) Kernel: 3.6.0-rc7-1-desktop
KDE Development Platform: 4.9.2 "release 511")
10:25am up 10:54, 4 users, load average: 0.65, 0.51, 0.42

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