** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Description changed:
My machine is a samsung-305u1 (with a AMD Fusion E-350) and I use the open
source drivers. Quite regularly the graphics driver does not load on boot and I
am stuck with a purple screen. Grub shows fine but when I select Ubuntu I get
the purple screen. On a successful boot the purple screen disappears and I see
the runscripts (I removed 'quiet splash' from the boot options'), but sometimes
the screen merely flickers and stays purple.
However the system is still responsive, I can use Alt+SysReq+REISUB to reboot
and I can even ssh to my machine.
According to http://ubuntuforums.org/showthread.php?t=2012657 the problem can
also occur on nvidia machines, and by typing the following commands in the grub
commandline the system boots fine:
test
continue
videoinfo
normal
The problem seems to occur quite randomly, but by doing the next steps I can
reproduce the problem 4 out of 5 times:
1. Boot normally
2. Connect external monitor with larger resolution
3. Close the lid of the laptop ( i guess this turns of the laptop screen)
4. Shutdown
5. Remove the external monitor
6. open the lid and power on
Because I can ssh into the machine i can provide error logs, but I don't
know which ones to provide, so someone please point me in the right
direction...
- WORKAROUND:
- Setting:
+ WORKAROUND: Setting gfxmode to 'text' lets me boot normally
+
+ WORKAROUND: Using the following kernel boot parameter works but this boots my
machine to unity 2d:
nomodeset
-
- also seems to work but this boots my machine to unity 2d.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 1: SB [HDA ATI SB], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: gerhard 1664 F.... pulseaudio
/dev/snd/controlC0: gerhard 1664 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Generic'/'HD-Audio Generic at 0xfeb44000 irq 43'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 6
Simple ctrls : 1
Card0.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Card1.Amixer.info:
Card hw:1 'SB'/'HDA ATI SB at 0xfeb40000 irq 16'
Mixer name : 'Realtek ALC269VB'
Components : 'HDA:10ec0269,144dc600,00100100'
Controls : 19
Simple ctrls : 11
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=a61a19a0-e46b-4166-ba49-6a56ed9a4673
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 305U1A
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-32-generic
root=UUID=efa624b8-abed-4c31-a30e-08852678e504 ro
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
RelatedPackageVersions:
linux-restricted-modules-3.2.0-32-generic N/A
linux-backports-modules-3.2.0-32-generic N/A
linux-firmware 1.79.1
Tags: precise running-unity
Uname: Linux 3.2.0-32-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip disk lpadmin plugdev sambashare sudo
dmi.bios.date: 07/29/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 01PS.M002.20110729.LEO
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: 305U1A/305U1A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: 01PS
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr01PS.M002.20110729.LEO:bd07/29/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn305U1A:pvr01PS:rvnSAMSUNGELECTRONICSCO.,LTD.:rn305U1A/305U1A:rvr01PS:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.name: 305U1A
dmi.product.version: 01PS
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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https://bugs.launchpad.net/bugs/1069353
Title:
1002:9802 graphics driver does not load on boot
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