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Bug 891871

Summary: switch to VT on IvyBridge noKMS cause hung
Product: Red Hat Enterprise Linux 6 Reporter: Tomas Pelka <tpelka>
Component: xorg-x11-drv-intelAssignee: Adam Jackson <ajax>
Status: CLOSED CANTFIX QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.4   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-06-25 16:57:44 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
messages
none
xorg.log none

Description Tomas Pelka 2013-01-04 10:07:31 UTC
Created attachment 672349 [details]
messages

Description of problem:
when booted with nomodeset and after switch to VT I can see only white/grey screen, same when switching back to X from VT. 

Version-Release number of selected component (if applicable):
kernel-2.6.32-350.el6
xorg-x11-drv-intel-2.20.8-1.el6
xorg-x11-drv-vesa-2.3.2-4.el6
xorg-x11-server-Xorg-1.13.0-10.el6

How reproducible:
100%

Steps to Reproduce:
1. boot nomodeset
2. switch to VT
3. switch back to X
  
Actual results:
grey screen

Expected results:
should work as with KMS enabled

Additional info:
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core process
or Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Dell Device [1028:053e]
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f6400000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
                Address: 00000000  Data: 0000
        Capabilities: [d0] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [a4] PCI Advanced Features
                AFCap: TP+ FLR+
                AFCtrl: FLR-
                AFStatus: TP-
        Kernel modules: i915

# dmidecode -t system
# dmidecode 2.11
SMBIOS 2.7 present.

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: Dell Inc.
	Product Name: Precision M4700
	Version: 01
	Serial Number: GB069W1
	UUID: 4C4C4544-0042-3010-8036-C7C04F395731
	Wake-up Type: Power Switch
	SKU Number: Not Specified
	Family: Not Specified

Comment 1 Tomas Pelka 2013-01-04 10:08:21 UTC
Created attachment 672350 [details]
xorg.log

Comment 2 Adam Jackson 2013-01-04 16:59:18 UTC
Yeah, that'll happen.  Many Intel video BIOSes these days are garbage, and nomodeset uses the VBIOS code.  There's usually nothing we can do about that.

nomodeset isn't a supported path, moving to 6.5 (but probably just going to close eventually).

Comment 3 Adam Jackson 2013-06-25 16:57:44 UTC
(In reply to Adam Jackson from comment #2)
> nomodeset isn't a supported path, moving to 6.5 (but probably just going to
> close eventually).

Now sounds good.