I'm getting this when I click on Try Ubuntu or when installing ubuntu. it's uefi bios. my pc have intel pentium g3240. I tried mbr and gpt but still getting this. Edit: it was happening with every linux distro and today I tried Android x86 with no hardware acceleration and it booted and fine. So please tell me if there's no hardware acceleration in Ubuntu.
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1Try to change setting for UEFI from BIOS. – learner Aug 03 '18 at 02:57
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I Tried everything can't quite explain it. tell us what have you tried? be specific and answers will come up. are you using a Nvidia card? what version of ubuntu are you trying? is it Legacy or UEFI? what is the model number of your laptop? – Sumeet Deshmukh Aug 03 '18 at 03:50
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If you install you can then identify your graphics card and try installing additional drivers – Panther Aug 03 '18 at 04:29
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Does this answer your question? [Firmware Bug]: TSC_DEADLINE disabled due to Errata - what should I do about this? – karel Jan 28 '20 at 05:19
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it seems your system has trouble with video driver you can try xorg open-source driver by typing this in terminal(may not work with try ubuntu as it does not have persistent storage)
sudo apt-get install xserver-xorg-video-intel

upendra
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how to do it as i can't use the pc when screen flickering happens – Satyaranjan Rout Aug 03 '18 at 06:10
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ctrl+alt+f2 will open the terminal.you might want to purge xserver-xorg-video-intel first,if it is present. – upendra Aug 03 '18 at 08:13
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