Grub-Efi wrong resolution

Posted by Nikki Kononov on Ask Ubuntu See other posts from Ask Ubuntu or by Nikki Kononov
Published on 2012-12-02T17:13:04Z Indexed on 2012/12/02 17:20 UTC
Read the original article Hit count: 296

Filed under:

grub2

|

uefi

|

grub-efi

My question, as it comes from the title, related to grub, but it's a different thing.

I re-installed Windows 7 and Ubuntu 12.10 in UEFI mode (before that I was using normal BIOS) and everything went perfectly fine. Both systems load as they should but there is one thing that keeps bothering me. The problem is before I installed both systems in UEFI I used to boot in both system using common grub (non-uefi) and resolution in this grub was correct (which is 1366x768). Right now with grub-efi I have wrong resolution (which is seems to be 640x480).

So my question is can can I safely set grub-resolution using grub config files or issue is related to something else? (for instance graphics card).

I am using Ubuntu 12.10 Intel HD 3000 + Nvidia GT 540M Optimus (I am using bumblebee) Kernel 3.5.0-19-generic all updates installed! I also added ubuntu x-swat ppa for drivers.

Thank you for your help!

© Ask Ubuntu or respective owner

Related posts about grub2

How to enable boot timeout in Grub2?

as seen on Super User - Search for 'Super User'
I'm am trying to enable the boot timeout selection in grub2 on Ubuntu 9.10. I modified /etc/default/grub: GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=2 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="splash quiet" GRUB_CMDLINE_LINUX="" and… >>> More
Windows 8 changes GRUB2 in every boot!

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've installed Win8 and Ubuntu 12.10 both UEFI style (win8 first then ubuntu). GRUB2 shows me Both Ubuntu and Win8 entries. If I boot into Ubuntu is fine. I could reboot anytime I will see GRUB2 unchanged. The story changes when I Boot into Win8. When I boot to Win8 using GRUB2 it takes me to the… >>> More
How to install Grub2 under several common scenarios

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I feel the community has long needed a clean guide on how to install Grub2 under a a few extremely common scenarios. I will accept answer as solved when it has one section per scenario and assumes nothing other than what is specified. Please add to the existing answer, wiki style, keeping to the original… >>> More
Make bootable iso with grub chainloading

as seen on Super User - Search for 'Super User'
My parents' pc has windows 7's boot manager installed at MBR and grub2 is installed on /dev/sda2 (booting linux on /dev/sda2). I want to make a bootable cd so that when booted from it just chainloads into the boot manager on the second partition. I assume using grub rather than grub2 for this will… >>> More
So HERE'S how you get into grub2 if there's no boot menu in Ubuntu Lucid 10.04

as seen on Internet.com - Search for 'Internet.com'
<b>Click:</b> "I installed Ubuntu 10.04 Lucid from a daily build yet couldn't boot into my fresh new desktop because I needed to add nomodeset to the grub2 boot line and didn't know how to do that because there was no boot screen visible." >>> More

Related posts about uefi

Dual Boot ubuntu 12.04 and Windows 7 on two separate SSDs with UEFI

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
With the following setup I get a blinking cursor after installation: Windows 7 64bit installed in first SSD (not UEFI, using MBR) Installation of Ubuntu 12.04 64Bit on gpt partioned disk seems to work without problems but does not boot. It stops with a blinking cursor. I used the partitioning scheme… >>> More
Dual Boot ubuntu 12.04 and Windows 7 with on two separate SSDs with UEFI

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
With the following setup I get a blinking cursor after installation: Windows 7 64bit installed in first SSD (not UEFI, using MBR) Installation of Ubuntu 12.04 64Bit on gpt partioned disk seems to work without problems but does not boot. It stops with a blinking cursor. Partitioning scheme: sdb1… >>> More
HP ProBook 4720s UEFI boot only manually into 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I'm trying to get UEFI boot on my ProBook 4720s. Because I swapped the HDD for a SSD I had a blank canvas to start. The 12.04 Live DVD refuses to boot into UEFI, as do Alternate and desktop CD's. However, when I make a 16Gb flashdrive into a live FS using the bootdisk tool in ubuntu, I can boot from… >>> More
UEFI/GPT Win 7 Load Failure in Dual Boot and no GRUB2 [Ubuntu 12.04]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Configuration: MBB: ASRock X79 Extreme6 Win 7 installed on a INTEL 40GB SSD (GPT partitioned) Ubuntu 14.04 on a CORSAIR 30GB SSD (Ext4 and SWAP) I had Windows 7 installed previously in UEFI mode, using 3 partitions (GPT) and works fine if left alone. In UEFI BIOS settings I can see sometimes… >>> More
Windows 7 won't load unless other harddrives "disconnect"ed in UEFI shell

as seen on Super User - Search for 'Super User'
I have three disks, one GPT partitioned containing Windows 7 and Debian, the other MBR partitioned containing CentOS, and the other one MBR partitioned, empty. It used to work (loading Windows boot manager using rEFIt) but now after installing CentOS and OpenIndiana on the second drive, Windows won't… >>> More