Bug 63231

Summary: Black screen after Boot
Product: Drivers Reporter: mealejan (alejandro)
Component: Video(DRI - Intel)Assignee: intel-gfx-bugs (intel-gfx-bugs)
Status: RESOLVED DUPLICATE    
Severity: blocking CC: daniel, intel-gfx-bugs
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 3.10.x 3.11.x 3.12.x Subsystem:
Regression: Yes Bisected commit-id:
Attachments: Output of demidecode
Xorg.log
Output of dmesg

Description mealejan 2013-10-18 12:57:37 UTC
Created attachment 111531 [details]
Output of demidecode

The Driver doesn't seem to recognize any more the laptopscreen since 3.10. In 3.9 everything worked fine.
My Laptop is a TX300CA.
Attached is the output of dmidecode.
Comment 1 mealejan 2013-10-18 13:42:17 UTC
If I login over ssh and try to start the X-Server I get following ERROR:

xf86OpenConsole: VT_ACTIVATE failed: No such device or address
Comment 2 Daniel Vetter 2013-10-18 14:06:09 UTC
Can you please attach the complet Xorg.log and also please boot with drm.debug=0xe and then grab the complete dmesg and attach it, too.
Comment 3 mealejan 2013-10-18 14:15:27 UTC
Created attachment 111541 [details]
Xorg.log
Comment 4 mealejan 2013-10-18 14:32:36 UTC
Created attachment 111551 [details]
Output of dmesg
Comment 5 Jani Nikula 2013-10-21 08:23:47 UTC
Asus TX300 variant, ivy bridge, efi boot, broken at 3.10, clamping bpp for eDP panel to BIOS-provided 18 -> very likely dupe of bug 59841.

Either try CSM/legacy boot or the patch in bug 59841 on top of drm-intel-nightly.
Comment 6 Jani Nikula 2013-10-21 08:25:33 UTC
The patch being attachment 111321 [details] "drm/i915/dp: workaround BIOS eDP bpp clamping issue".
Comment 7 mealejan 2013-10-22 16:19:26 UTC
Trying the CSM/legacy worked for me. I will try the patch the next few days.
Comment 8 Jani Nikula 2013-11-11 12:44:36 UTC
Presumed dupe of bug 59841 which is fixed by 
commit c6cd2ee2d59111a07cd9199564c9bdcb2d11e5cf
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Mon Oct 21 10:52:07 2013 +0300

    drm/i915/dp: workaround BIOS eDP bpp clamping issue

available in 3.12 kernel.

*** This bug has been marked as a duplicate of bug 59841 ***