Login screen wrong size

[lingenfr]

After upgrading to intrepid, my login screen is too narrow. There is a vertical line on the right and left with garbage and a normal login screen in the middle. I have an Intel 855GM based laptop (Toshiba Libretto U100).

00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02)

It is a wide screen and the standard setting is 1280x768. Does anyone know how to correct this? Thanks.

[swalker23]

Re: Login screen wrong size

If its the wrong resolution than this might help. I had this happen in hardy and I followed this example.

I found the error in Edgy: when the installation built my xorg.conf, it created a totally unnecessary entry that defined a virtual desktop of 1400x1050 even though the max resolution of my monitor is 1024x768. Here is the offending snippet from /etc/X11/xorg.conf:


Section "Screen"
Identifier "Default Screen"
Device "Silicon Integrated Systems (SiS) 630/730 PCI/AGP VGA Display Adapter"
Monitor "A75f"
DefaultDepth 24
SubSection "Display"
depth 24
virtual 1400 1050
modes "1024x768@85" "1024x768@75" "832x624@75" "1024x768@70" "800x600@60" "$
EndSubSection
EndSection


The "virtual 1400 1050" entry is the culprit. I commented it out and rebooted, and the problem went away.

or from another post in same section

I had the same problem for months and then one morning it started to bug me and I googled for kdm and resolution and found your postings.

I got it working by not just commenting the "Virtual" line but instead replacing the values with my current resolution, that is:

SubSection "Display"
# Virtual 2048 1536
Virtual 1280 1024
Depth 24

I always use resolution of 1280X1024 so this works for me, but problems might occur if you need to change your resos for example with Ctrl+Alt++ and Ctrl+Alt+-. At least for me that doesn't work very well. In case you have a laptop you probably won't need that feature.

In addition I have to say that if you want to chenge the resolution of the Usplash check following https://help.ubuntu.com/community/US...omizationHowto

[dibl]

Re: Login screen wrong size

I read several threads on Ubuntu Forums that suggest, for those Intel graphics chips, that you need to change color depth to 16, in lieu of 24.

[lingenfr]

Re: Login screen wrong size

If its the wrong resolution than this might help. I had this happen in hardy and I followed this example...
In addition I have to say that if you want to chenge the resolution of the Usplash check following https://help.ubuntu.com/community/US...omizationHowto

I had already looked at the virtualization info. That is not my problem. I think I probably need to resize the usplash. I will try that. No offense dibl, but I have no intent to reduce my color depth for this. That is a bit extreme for an annoyance. Thanks.