Bug 82285 - displayport detects monitor, but the monitor goes into power saving
Summary: displayport detects monitor, but the monitor goes into power saving
Status: RESOLVED DUPLICATE of bug 45291
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-08-07 06:48 UTC by Glen Ogilvie
Modified: 2014-08-25 13:53 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
This tar.gz contains dmesg, journalctl output, xorg logs, lspci, dmidecode, xrandr (81.06 KB, application/x-compressed)
2014-08-07 06:48 UTC, Glen Ogilvie
no flags Details

Description Glen Ogilvie 2014-08-07 06:48:51 UTC
Created attachment 104205 [details]
This tar.gz contains dmesg, journalctl output, xorg logs, lspci, dmidecode, xrandr

I can't get my laptop's displayport output to drive my monitor, using the
free ati driver.  It does work on the legacy driver, from ATI, however, that
only works on X <= 1.12, which is no fun to be stuck with, as no current
distro ships old versions of X.  I have a 27 inch dell monitor, so using
HDMI is not great option, as it can't drive a high enough resolution to look
sharp, as I want 2560 x 1440.

I think Bug 45291 is basically the same problem, and I've updated it to include my hardware as well.

My monitor is a :DELL U2711
Video card: Mobility Radeon HD 4650
Laptop: Dell Studio 1747

This bug has a boot with drm.debug=6 attached, and as much other debugging infomation as I could find.

I am happy to work fairly closely on this, if someone has ideas or information they need me to collect.
Comment 1 Alex Deucher 2014-08-25 13:53:44 UTC

*** This bug has been marked as a duplicate of bug 45291 ***


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