Currently running 12.04LTS looking to upgrade to 14.04LTS. Received the following warning from upgrade manager before starting upgrade:
Running the 'unity' desktop environment is not fully supported by your graphics hardware. You will maybe end up in a very slow environment after the upgrade.
Followed link to suggested web site::
https://wiki.ubuntu.com/X/Bugs/UpdateManagerWarningForUnity3D
Warning is titled: "Updating a system without support for 3d to run the unity shell". It says I probably have old hardware. This is literally a brand new box, although a budget Lenovo model (H50). It has Intel Pentium G3250 (3.20GHz 1333MHz 3MB), Intel HD Graphics (on board generic Intel graphics, hardly unusual), 12GB memory. Runs 12.04 perfectly fine. Dual boot with Windows 7, which also runs fine.
Reference another Ask ubuntu question about same thing, but with no hardware specifics:
Upgrade popup says my graphic hardware is not supported. Is this true?
I would think many systems these days without specialized graphics cards come with Intel graphics on the motherboard. Is this really not supported by Ubuntu?
update, I tried 14.04 by booting the CD, that worked fine. It recognized the graphics card correctly, per the system details page. Did not try installing from the CD.
update, info for command lspci -nn:
00:00.0 Host bridge [0600]: Intel Corporation Haswell DRAM Controller [8086:0c00] (rev 06)
00:01.0 PCI bridge [0604]: Intel Corporation Haswell PCI Express x16 Controller [8086:0c01] (rev 06)
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell Integrated Graphics Controller [8086:0402] (rev 06)
00:03.0 Audio device [0403]: Intel Corporation Haswell HD Audio Controller [8086:0c0c] (rev 06)
00:14.0 USB controller [0c03]: Intel Corporation Lynx Point USB xHCI Host Controller [8086:8c31] (rev 05)
00:16.0 Communication controller [0780]: Intel Corporation Lynx Point MEI Controller #1 [8086:8c3a] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation Lynx Point USB Enhanced Host Controller #2 [8086:8c2d] (rev 05)
00:1b.0 Audio device [0403]: Intel Corporation Lynx Point HD Audio Controller [8086:8c20] (rev 05)
00:1c.0 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port 1 [8086:8c10] (rev d5)
00:1c.2 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port 3 [8086:8c14] (rev d5)
00:1c.5 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port 6 [8086:8c1a] (rev d5)
00:1d.0 USB controller [0c03]: Intel Corporation Lynx Point USB Enhanced Host Controller #1 [8086:8c26] (rev 05)
00:1f.0 ISA bridge [0601]: Intel Corporation Lynx Point LPC Controller [8086:8c5c] (rev 05)
00:1f.2 SATA controller [0106]: Intel Corporation Lynx Point 6-Port SATA AHCI Controller [8086:8c02] (rev 05)
00:1f.3 SMBus [0c05]: Intel Corporation Lynx Point SMBus Controller [8086:8c22] (rev 05)
01:00.0 Serial Attached SCSI controller [0107]: Adaptec ASC-1405 Unified Serial HBA [9005:0450] (rev 02)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 0c)
04:00.0 Network controller [0280]: Atheros Communications Inc. Device [168c:0036] (rev 01)
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