https://community.sony.no/t5/pcs-accessories/bios-downgrade/m-p/2155707#M136138 <P>Hello, I can't find any information regarding bios versions/changelog.<BR />I have a SVE14A2M6E that used to work out of the box on both windows and gnu/linux (including the radeon gpu / hdmi output / etc).<BR />After upgrading the bios my fps dropped considerably, uefi laggs hardcore and hdmi doesn't give any video signal unless I explicitly disable radeon in cmos.<BR /><BR />I wouldn't really want to resort to modding it so is there any way to downgrade it?</P> Mon, 28 Mar 2016 07:45:58 GMT mrc.toader 2016-03-28T07:45:58Z https://community.sony.no/t5/pcs-accessories/bios-downgrade/m-p/2155707#M136138 <P>Hello, I can't find any information regarding bios versions/changelog.<BR />I have a SVE14A2M6E that used to work out of the box on both windows and gnu/linux (including the radeon gpu / hdmi output / etc).<BR />After upgrading the bios my fps dropped considerably, uefi laggs hardcore and hdmi doesn't give any video signal unless I explicitly disable radeon in cmos.<BR /><BR />I wouldn't really want to resort to modding it so is there any way to downgrade it?</P> Mon, 28 Mar 2016 07:45:58 GMT https://community.sony.no/t5/pcs-accessories/bios-downgrade/m-p/2155707#M136138 mrc.toader 2016-03-28T07:45:58Z https://community.sony.no/t5/pcs-accessories/bios-downgrade/m-p/2156135#M136139 <P>Hi <a href="https://community.sony.no/t5/user/viewprofilepage/user-id/665635">@mrc.toader</a></P> <P>&nbsp;</P> <P>&nbsp;</P> <P>I'm afraid that the Sony support site doesn't provide any way back from a BIOS upgrade. I assume this was an official upgrade provided by Sony?</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>As far as I know your only hope would be to contact Sony Support to see whether they can help.</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>Rich</P> Mon, 28 Mar 2016 18:15:57 GMT https://community.sony.no/t5/pcs-accessories/bios-downgrade/m-p/2156135#M136139 rich912 2016-03-28T18:15:57Z