Bug 20312 - nv driver sanity checks prevent valid modeline
Summary: nv driver sanity checks prevent valid modeline
Status: RESOLVED WONTFIX
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nVidia (open) (show other bugs)
Version: git
Hardware: All All
: medium normal
Assignee: Aaron Plattner
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-02-25 11:52 UTC by Alistair Buxton
Modified: 2012-01-22 12:30 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments

Description Alistair Buxton 2009-02-25 11:52:14 UTC 
This is the modeline:

ModeLine "512x288pal" 9.875 512 528 576 632 288 290 293 311 -hsync -vsync

nv driver rejects it because the mode clock is too low. in nv_setup.c, in both nv10GetConfig and nv4GetConfig:

    pNv->MinVClockFreqKHz = 12000;

Which is too high for the above modeline. Changing this to a value smaller than 9875 allows the modeline to work as expected.

My card is an MX4000.
Comment 1 Corbin Simpson 2012-01-22 12:30:51 UTC 
Nobody is supporting xf86-video-nv and it will be going away at some point in the future. If your problem persists with nouveau or the proprietary driver provided by nVidia, please re-file accordingly. We apologize for the inconvenience.

This is part of an automated bulk action; if you believe that this bug was closed in error, then change the targeted component and reopen it.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.