How to enable fully hardware accelarated KMS rendering on DELL VOSTRO 1000 (and Inspiron 1501?)
for HD videos,3D mini games,and fast browser rendering and more

Howto At install from disk:

0: On boot,artifact on display
1: Close the display panel
2: Wait for suspend linux
3: Open the display panel
4: You will see correct display.

You are not necessary `nomodeset' kernel-parameter.
But few error record in syslog.

Howto every boot:

Read Troubleshooting section on Ati How To - Debian Wiki
/etc/systemd/system/backlight_restart.service for systemd:

[Unit]
Description=reset screen radeon driving
ConditionPathExists=/usr/sbin/radeontool
After=network.target
[Service]
Type=oneshot
ExecStart=/bin/sh -c '/usr/sbin/radeontool light off ; sleep 0.5 ; /usr/sbin/radeontool light on'
StandardOutput=syslog

[Install]
WantedBy=multi-user.target

After=network.target is not wrong.
the service start after load radeon kernel module.

WLAN disabled issue

How to enable WLAN on VOSTRO 1000, search "b43-fwcutter".
You may download classic firmware.

Fast Xorg

I thought Vostro 1000 custom config.
It can fast render 3D and full HD videos.
1/11/2017:Updated.
/etc/modprobe.d/radeon.conf

options radeon tv=0 audio=0 gartsize=1024

/etc/X11/xorg.conf.d/50-radeon.conf

Section "Device"
	Identifier "Card0"
	Driver	"radeon"
	Option "ColorTiling" "on"
	Option "TearFree" "on"
#	Option	"MigrationHeuristic" "greedy"
	Option "SwapBuffersWait" "0"
EndSection

$HOME/.drirc

<driconf>
    <device screen="0" driver="dri2">
        <application name="Default">
            <option name="vblank_mode" value="0" />
        </application>
    </device>
   
</driconf>

add to kernel parameter

i8k.force amd_iommu=fullflush pci=pcie_bus_perf,ecrc=on

Hardware Hacking

Vostro 1000 can install DDR2 4GB SODIMM modules.
then, You can use 8GB memory space on Vostro 1000.
Also, you can change the CPU to AMD Turion X2 TL-66.