Default display mode should follow TCO99 if possible (vertical refresh >= 85 Hz on CRT displays)

Bug #12839 reported by Mantas Kriaučiūnas
6
Affects Status Importance Assigned to Milestone
xorg (Ubuntu)
Invalid
Medium
Daniel Stone

Bug Description

Currently ubuntu hoary selects wrong default resolution for most monitors I
tested :(

on most my tested systems (17' CRT monitors) ubuntu hoary live starts in
1280x1024 resolutions, which is really not good for these monitors, most people
use 1024x768 or 1152x864

fonts are very small when using 17' CRT monitor with 1280x1024 resolution and
refresh rate is 60 or 75 Hz, which is really bad, according to TCO99 standard
vertical refresh frequency *must* be >=85Hz (look at Section 2 (Visual ergonomic
- Image stability) of TCO99:

http://www.tcodevelopment.com/pls/nvp/Upload.Show?CID=776&MID=141

There is simple table of mandatory resolutions and vertical refresh for CRT
monitors:
CRT Size VRefresh Resolution
14"-15" >=85 Hz >=800x600
   17" >=85 Hz >=1024x768
19"-21" >=85 Hz >=1280x1024
  >21" >=85 Hz >=1280x1024

Btw, TCO99 recommended vertical refresh is 100Hz and I think it would be very
nice to select according display mode if possible (if monitor could work with
mandatory resolution at 100Hz)

Revision history for this message
Mantas Kriaučiūnas (mantas) wrote :

Accidently pressed "Reload" on firefox ;)

This bug has been marked as a duplicate of bug 12829.

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