Comment 2 for bug 1412730
Revision history for this message
| Michiel Janssens (janssensm) wrote Re: DELL U2415 monitor detection issues | #2 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
bbfa235
demo site
(Get the code!)
Investigated the issue some more.
Seems that EDID is not always given by the monitor when asked by the OS, for instance via "Detect Monitors" via gui or via xrandr via command line.
The workaround with xorg.conf I have abandoned. It wasnt working great too. Still a lot of time X was detecting resolutions again resulting in garbled screens or non active screen, however it stayed at the right resolution.
I managed to extract the edid for U2415 (256 byte), which i have attached.
Parse-edid has issues reading the extension block, but in Xorg.0.log I never saw issues reading the edid when it was available from the monitor.
My current workaround is by using kernel commandline parameter drm_kms_
This seems to work well.