Bug 9941 - xf86-video-intel modesetting fails to properly detect EDID mode for ViewSonic VX2025vm - need a quirk
Summary: xf86-video-intel modesetting fails to properly detect EDID mode for ViewSonic...
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: git
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Eric Anholt
QA Contact:
URL:
Whiteboard:
Keywords: patch
Depends on:
Blocks:
 
Reported: 2007-02-10 16:03 UTC by Elvis Pranskevichus
Modified: 2007-02-13 14:35 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
ViewSonic VX2025wm EDID sync polarity fix quirk (408 bytes, patch)
2007-02-10 16:06 UTC, Elvis Pranskevichus 		no flags Details | Splinter Review
View All

Description Elvis Pranskevichus 2007-02-10 16:03:59 UTC 
I have the following configuration:
- Intel 965G based mobo
- ViewSonic VX2025 wide screen monitor with native resolution of 1680x1050
- X.org version 7.1
- latest xf86-video-intel driver from git:modesetting branch

It seems that the monitor fails to correctly report the sync polarity for its native 1680x1050@60 mode and it results in a distorted mode being set. I posted my problem description to the xorg mailing list and got a hint that it is indeed the polarity misdetection. 

I managed to fix the problem by adding the flipping quirk to i830_edid_modes.c.
Comment 1 Elvis Pranskevichus 2007-02-10 16:06:26 UTC 
Created attachment 8655 [details] [review]
ViewSonic VX2025wm EDID sync polarity fix quirk
Comment 2 Eric Anholt 2007-02-13 14:35:30 UTC 
Committed.  Thanks!

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.