Issue

• After booting into Red Hat Enterprise Linux Server 7, the following screen is appearing

[    1.539786] nouveau ![  DEVICE][0000:06:00.0] unknown Kepler chipset
[    1.539813] nouveau E[  DEVICE][0000:06:00.0] unknown chipset, 0x0f13a0a1
[    1.539835] nouveau E[     DRM] failed to create 0x80000080, -22

• After about 5 min, it is starting GNOME Desktop without fail with generic(VESA) display driver.
• Getting similar errors in dmesg:

[    1.539373] nouveau 0000:06:00.0: enabling device (0104 -> 0107)
[    1.539786] nouveau ![  DEVICE][0000:06:00.0] unknown Kepler chipset
[    1.539813] nouveau E[  DEVICE][0000:06:00.0] unknown chipset, 0x0f13a0a1
[    1.539835] nouveau E[     DRM] failed to create 0x80000080, -22
[    1.539985] isci 0000:04:00.0: irq 113 for MSI/MSI-X
[    1.539993] isci 0000:04:00.0: irq 114 for MSI/MSI-X
[    1.540044] nouveau: probe of 0000:06:00.0 failed with error -22
[    1.540071] checking generic (e1000000 1d5000) vs hw (d0000000 10000000)
[    1.540073] checking generic (e1000000 1d5000) vs hw (e0000000 2000000)
[    1.540074] fb: conflicting fb hw usage nouveaufb vs EFI VGA - removing generic driver
[    1.540086] Console: switching to colour dummy device 80x25
[    1.540708] nouveau ![  DEVICE][0000:05:00.0] unknown Kepler chipset
[    1.540712] nouveau E[  DEVICE][0000:05:00.0] unknown chipset, 0x0f13a0a1
[    1.540715] nouveau E[     DRM] failed to create 0x80000080, -22
[    1.541064] nouveau: probe of 0000:05:00.0 failed with error -22