First time poster here, i read the forum rules and hope im within tolerance.
I have also been having this problem, yet it persisted before
the latest update.
Im useing Cinnamon as my window manager, and GRUB bootloader for dualboot XP/ LMDE
Ive included thumbnail pictures of the exact problem im talking about.
It seems to occur about 3-10 minutes after login, and being idle.
After screen saver i can pretty much guarantee it will happen.
The only way ive been able to work around it is CTRL-ALT + [backspace] to restart Cinnamon.
Searching for this topic is difficult as anything with the word 'window' in google brings up 60,000 micro soft pages...
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System: Host: eazy Kernel: 3.11-2-amd64 x86_64 (64 bit, gcc: 4.8.1) Desktop: Cinnamon 2.0.14 Distro: LinuxMint 1 debian
Machine: System: Dell product: OptiPlex 755
Mobo: Dell model: 0DR845 Bios: Dell version: A08 date: 02/19/2008
CPU: Quad core Intel Core2 Quad CPU Q6600 (-MCP-) cache: 4096 KB flags: (lm nx sse sse2 sse3 ssse3 vmx) bmips: 19152.8
Clock Speeds: 1: 2394.098 MHz 2: 2394.098 MHz 3: 2394.098 MHz 4: 2394.098 MHz
Graphics: Card: Intel 82Q35 Express Integrated Graphics Controller bus-ID: 00:02.0
X.Org: 1.14.3 drivers: intel (unloaded: fbdev,vesa) Resolution: firstname.lastname@example.org
GLX Renderer: Mesa DRI Intel Q35 GLX Version: 2.1 Mesa 9.2.2 Direct Rendering: Yes
Audio: Card: Intel 82801I (ICH9 Family) HD Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture ver: k3.11-2-amd64
Network: Card-1: Intel 82566DM-2 Gigabit Network Connection driver: e1000e ver: 2.3.2-k port: ecc0 bus-ID: 00:19.0
IF: eth0 state: down mac: <filter>
Card-2: Realtek RTL8187 Wireless Adapter driver: rtl8187 usb-ID: 006-002
IF: wlan0 state: up mac: <filter>
Drives: HDD Total Size: 211.9GB (14.5% used) 1: id: /dev/sdb model: Maxtor_6L100M0 size: 100.3GB
2: id: /dev/sda model: WDC_WD800JD size: 80.0GB 3: USB id: /dev/sdc model: SPH size: 31.7GB
Partition: ID: / size: 11G used: 4.6G (47%) fs: ext4 ID: /home size: 49G used: 25G (52%) fs: ext4
Sensors: System Temperatures: cpu: 51.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 161 Uptime: 15:14 Memory: 1082.5/1967.7MB Runlevel: 2 Gcc sys: 4.8.2
Client: Shell (bash 4.2.45) inxi: 1.9.14
i caught it happening especially here.
Firefox Window was fine in this picture
then after minimizing window and then maximizing....
Note that the task bar at the bottom never fails, but all other windows will eventually.
Im unsure if Cinnamon handles the task bar at the bottom, and if it does why is it the sole graphic unaffected?
All buttons will work when these screens are blacked out however, just nothing is shown. so i have to be lucky to remember the window layout, or restart cinnamon.