After travelling with my ThinkPad x121e on suspend my resolution has altered and the correct resolution setting disappeared. This affects the whole computer, when using live USB as well. I do not expect a reinstall to work (I will reinstall later tonight perhaps to make sure). I run Linux Mint 11 x32, with the Intel Sandy Bridge graphics. Before travelling the resolution was fine, it recognised the correct 1366x768 resolution. After travelling, a whole new set of resolution options have appeared and it currently recognises 1280x800 as the optimal resolution. 4cm is missing from the right, 2cm from the bottom.
I have already tried adding a new resolution mode using xrandr. This does not seem to work. I tried to add a new resolution mode setting, but it would not recognise the mode even when I had added it. It seemed to add it as DP1 instead.
The Linux Mint forums suggested editing the grub configuration to insert
vga=844, but this also did not work. What else can I try?