I just installed Ubuntu 17.10 in my DELL Vostro i5 laptop. Initially Ubuntu was showing a blank screen after booting, but when I added nomodeset
in GRUB, then I was able to see the login screen and use the system.
Now Ubuntu is not detecting my display and no video drivers are loaded and the screen is flickering while scrolling and it makes really hard to use the system.
Executing lspci | grep VGA | cut -d " " -f 1 | xargs lspci -vv -s
gives me the following result:
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02) (prog-if 00 [VGA controller])
Subsystem: Dell HD Graphics 620
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 11
Region 0: Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel modules: i915
lspci | grep VGA | cut -d " " -f 1 | xargs lspci -vv -s
will show a bunch of information, and the results should be appended to your question, please.