Ubuntu 13.04 and 12.04.2: Login screen does not appear after installing OS on SL4545 G7
== Quantal SRU Justification ==
A regression was discovered while testing HP SL4545 G7 systems with the recent 3.5.0-22.34 Quantal kernel. The regression results in a failure to display a login screen/prompt upon booting. Booting into a previous 3.5.0-17.28 Quantal kernel confirms the issue does not exist. This issue was bisected and it was determined the following commit introduced the regression:
Author: Egbert Eich <email address hidden>
Date: Wed Oct 24 18:29:49 2012 +0200
DRM/Radeon: Fix Load Detection on legacy primary DAC.
== Fix ==
After additional testing, it was then confirmed that the following upstream commit (which has also been CC'd to stable) resolves the issue:
Author: Jerome Glisse <email address hidden>
Date: Tue Jan 8 18:41:01 2013 -0500
radeon/kms: force rn50 chip to always report connected on analog output
== Test Case ==
Boot eg. the 3.5.0-22.34 Quantal kernel on an HP SL4545 G7 system and confirm the login screen/prompt is *not* displayed and ssh'ing into the system one can see the following message in dmesg output:
[ 5.848056] No connectors reported connected with modes
[ 5.848059] [drm] Cannot find any crtc or sizes - going 1024x768
Boot a kernel with commit 51861d4e applied on an HP SL4545 G7 system and confirm the login screen/prompt is displayed and the above message is not seen in dmesg output.
=== Original Bug Description ==
Ubuntu 13.04 and 12.04.02: Login screen does not appear after installing OS on SL4545 G7 server. Quantal works fine...
Expected Result: Login should be successful. But even after blacklisting, we are unable to get the login screen
Note: System ROM - A31 12/06/2012
iLO Firmware Version - 1.55 Oct 26 2012
Request Type: pre release issue
Ubuntu OS Details: 13.04, 12.04.2 (01/17/2013) build.
HP Quix ID: QXCR1001260069
Install Ubuntu 13.04 Raring Ringtail or 12.04.2 and reboot the system. Login screen does not appear and video shows as disconnected in management integrated remote console. As well no login in prompt on the server console. But we can ssh to the ssh. 12.10 Quantal works fine without any issue.
Workaround: Boot the system with nomodeset kernel parameter and we can see the login screen. This server has radeon driver for graphics.
lspci -s 01:03.0 -xxvv
01:03.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI ES1000 (rev 02) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 31fb
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (2000ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
Region 1: I/O ports at 2000 [size=256]
Region 2: Memory at fd9f0000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at fd900000 [disabled] [size=128K]
Capabilities:  Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: radeon, radeonfb
00: 02 10 5e 51 87 01 90 02 02 00 00 03 10 40 00 00
10: 08 00 00 f0 01 20 00 00 00 00 9f fd 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 3c 10 fb 31
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 08 00
Private bug details available at:
|Changed in linux (Ubuntu Quantal):|
|status:||In Progress → Fix Committed|