Binary package hint: grub2
I have a Dell XPS studio 16 that has an attached an external monitor.
In /etc/default/grub I have: GRUB_GFXMODE=1920x1080-24
This seems to work fine on the laptop monitor. However, on the external monitor the picture is not scaled correctly. The picture is underscanned.The effect is the same as if I leave the underscan option in ATI Catalyst Control Center at its default value. By setting the underscan to 0% in the Catalyst Control Center the problem is resolved in xorg. But unfortunately the startup splash screen is not scaled correctly and there is a black frame around the splash screen.
Using Ubuntu 10.10 64-bit with the fglrx driver.
grub2:
Installed: (none)
Candidate: 1.98+20100804-5ubuntu3
Version table:
1.98+20100804-5ubuntu3 0
500 http://se.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages
What you expected to happen: That the picture on the external monitor cover the entire screen.
What happened instead: The picture is covered by a black frame, similar to the underscan effect in the ATI Catalyst Control Center.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: fabian 1666 F.... pulseaudio
/dev/snd/controlC0: fabian 1666 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf1000000 irq 48'
Mixer name : 'IDT 92HD73C1X5'
Components : 'HDA:111d7675,102802fe,00100103'
Controls : 21
Simple ctrls : 14
Card1.Amixer.info:
Card hw:1 'Generic'/'HD-Audio Generic at 0xcfedc000 irq 49'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=fc16cb79-2579-444d-8b8c-0a2d395cd87d
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0c45:640f Microdia
MachineType: Dell Inc. Studio XPS 1645
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=af25bdc7-2d7a-468e-ba6a-9410d6428cc5 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
Tags: oneiric running-unity
Uname: Linux 3.0.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 05/11/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0VV228
dmi.board.vendor: Dell Inc.
dmi.board.version: A09
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A09
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/11/2010:svnDellInc.:pnStudioXPS1645:pvrA09:rvnDellInc.:rn0VV228:rvrA09:cvnDellInc.:ct8:cvrA09:
dmi.product.name: Studio XPS 1645
dmi.product.version: A09
dmi.sys.vendor: Dell Inc.
Are you referring to the Plymouth splash screen (the purple one with the Ubuntu logo)? This is unaffected by GRUB_GFXMODE, and it's quite possible that the kernel simply doesn't know how to set the mode you're asking for.